Annotation of loncom/thesaurus/rawkey.txt, revision 1.1

1.1     ! matthew     1: board,diver,diving,torque
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        !            27: angular,rpm,velocity,wheel
        !            28: acceleration,angular,blades,blender,motor
        !            29: bicycle,diameter,revolutions,tires,wheels
        !            30: acceleration,centrifuge,particle,revolutions,rotate,rotation
        !            31: acceleration,angular,automobile,engine,revolutions,rpm
        !            32: acceleration,angular,circular,pottery,rubber,wheel
        !            33: door,perpendicular,torque
        !            34: center,inertia,moment,sphere
        !            35: angular,axis,ball,radius
        !            36: merrygoround,spinning
        !            37: helicopter,motor,rotation,rotor,torque
        !            38: ball,bowling,energy,kinetic
        !            39: balanced,pole,vertically
        !            40: inertia,moment,rotation,skater
        !            41: angular,arms,body,momentum,skater,spinning,torque
        !            42: angular,inertia,moment,rotating
        !            43: angular,inertia,merrygoround,turntable
        !            44: accelerates,cyclist
        !            45: acceleration,angular,hinge,moment,pivot
        !            46: loop,marble,rough,track
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        !            55: breakaway,cornerback,halfback,tackled,touchdown
        !            56: boxcar,stick,strikes
        !            57: alpha,atomic,emits,nucleus,particle
        !            58: ball,club,golf,hit,impulse,tee
        !            59: fullback,impulse,momentum,tackler
        !            60: collision,elastic,ice,puck
        !            61: amusement,bumper,car,collide,collision,elastically,heavier,lighter,momentum,park,ride
        !            62: bullet,buries,hanging,horizontal,pendulum,swing
        !            63: breaks,energy,explosion,heavier,kinetic,lighter
        !            64: collision,eagle
        !            65: ball,blow,bowling,collision,elastic
        !            66: atom,center,distance,mass,molecule,oxygen
        !            67: cylindrical,length,mallet,trajectory
        !            68: car,coasts,constant,friction,railroad,snow,track
        !            69: astronaut,capsule,space
        !            70: boat,exchange,people,rowboat,seats
        !            71: block,collision,space,strikes
        !            72: clay,collision,pellet,skeet
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        !            83: constant,floor,force,friction,work
        !            84: average,car,force,retarding
        !            85: coefficient,force,friction,gravity,incline,kinetic,piano
        !            86: displacement,force,spring,stretch,work
        !            87: car,stop,work
        !            88: arrow,bow,fired,speed
        !            89: air,force,resistance,softball
        !            90: branch,energy,monkey,potential
        !            91: book,energy,ground,head,potential
        !            92: athlete,energy,ground,jump,kinetic,lift,potential
        !            93: bungee,jumper,spring
        !            94: bicycle,bike,cyclist,force,friction,hill,pedals,work
        !            95: child,energy,friction,slide,thermal
        !            96: coefficient,friction,glides,incline,skier,slope
        !            97: lift,motor,piano
        !            98: motion,shot,shotputter
        !            99: car,climb,frictional,hill,power,steep
        !           100: bicycle,bicyclist,climb,cyclists,hill,speed,steady
        !           101: jump,launch,olympics
        !           102: circular,cord,peg
        !           103: bathroom,height,jump,scale
        !           104: athlete,climb,distance
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        !           111: acceleration,centripetal,force
        !           112: force,horizontal,radius
        !           113: ball,circle,magnitude,mass,radius,speed,string,tension
        !           114: astronauts,force,radius,rotating
        !           115: coaster,curvature,minimum,radius,speed
        !           116: ferris,revolutions,weightless
        !           117: car,coefficient,curve,friction,skid
        !           118: acceleration,circle,horizontal,particle
        !           119: moon,mercury venus mars jupiter saturn uranus neptune pluto,acceleration,gravity
        !           120: astronauts,gravity,shuttle,space,weightless
        !           121: acceleration,center,distance,earth,gravitational,surface
        !           122: acceleration,astronaut,gravity,shuttle,weightless
        !           123: acceleration,ceiling,elevator,monkey
        !           124: acceleration,downward,elevator,scale,upward,weight
        !           125: apparent,ferris,rotates,weight,wheel
        !           126: asteroid,distance,earth,period,sun
        !           127: acceleration,gravity,surface
        !           128: circular,space,station
        !           129: acceleration,aircraft,centripetal,pilot
        !           130: everest,mountain
        !           131: ceiling,chandelier,curve,train
        !           132: 
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        !           139: 
        !           140: accelerates,bike,force,mass,net
        !           141: force,weight
        !           142: average,ball,catchers,force,mitt
        !           143: acceleration,elevator,force,motor
        !           144: acceleration,air,force,kg,parachute,resistance,speed
        !           145: distance,force,upward
        !           146: acceleration,average,component,force,speed
        !           147: acceleration,bucket,tension
        !           148: bucket,force,speed
        !           149: frictionless,mass,massless,pulley,velocity
        !           150: crate,floor,force,horizontal
        !           151: coefficient,friction,kinetic,slides,speed
        !           152: coefficient,friction,slides,static
        !           153: acceleration,angle,block,friction,incline,plane,slides,speed
        !           154: angle,coefficient,force,friction,incline
        !           155: chimney,climber,exert,force,friction,shoes
        !           156: air,bicycle,bicyclist,force,resistance,speed
        !           157: car,force,trailer
        !           158: cable,elevator,tension
        !           159: accelerating,downward,elevator,scale,upward
        !           160: air,bicycle,force,friction,resistance
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        !           173: degrees,displacement
        !           174: vector
        !           175: component,length,vectors
        !           176: angles,length,vector,vectors
        !           177: acceleration,component
        !           178: pebbles,speed
        !           179: football,speed
        !           180: 
        !           181: bullet,speed
        !           182: distance,plane,velocity
        !           183: relative,snow,speed
        !           184: evasive,planes,speed
        !           185: angle,cross,speed,water
        !           186: acceleration,police,speeder
        !           187: distance,speed
        !           188: magnitude,vector
        !           189: horizontal,jumper
        !           190: ball,distance,height,minimum,net,speed,tennis
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        !           212: average,speed,velocity
        !           213: average,plane,speed
        !           214: 
        !           215: acceleration,car,distance
        !           216: acceleration,constant,distance
        !           217: 
        !           218: accelerate,distance,length,maximum
        !           219: height,cliff,stone
        !           220: ball,height,speed
        !           221: air,speed
        !           222: 
        !           223: baseball,speed
        !           224: acceleration,average,graph
        !           225: 
        !           226: car,collision,crash,distance
        !           227: acceleration,speed
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        !           240: 
        !           241: number,significant
        !           242: measurement,uncertainty
        !           243: 
        !           244: area,radius,uncertainty
        !           245: 
        !           246: number,significant,sum
        !           247: moon,mercury venus mars jupiter saturn uranus neptun pluto,area,earth,radius,ratio,surface
        !           248: length,unit
        !           249: 
        !           250: mass,water
        !           251: 
        !           252: error,fractional,maximum
        !           253: error,acceleration,deviation,pendulum,period
        !           254: acceleration,average,car,constant,error,velocity
        !           255: area,deviation,error,height,sheet,width
        !           256: acceleration,distance,error,gravitational,probable
        !           257: well,volume,water
        !           258: spring,hung,stretched
        !           259: area,error,systematic
        !           260: beam,error,fractional,modulus
        !           261: box,error,height,length,width
        !           262: area,board,error,height,length,rectangular
        !           263: car,error,probable,velocity
        !           264: circle,area,error,radius,round
        !           265: acres,conversion,feet,hours,mile,mm,seconds,square,unit
        !           266: deviation,length
        !           267: meaningful,operation
        !           268: graph,line,slope
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        !           377: hypotenuse,pythagorean,triangle
        !           378: density,planet,sphere,volume
        !           379: earth,equator,radius
        !           380: debt,federal
        !           381: division,multiplication
        !           382: bit,book,byte,gigabyte
        !           383: root,square
        !           384: simple,lens formula
        !           385: area,balloon,radius,sphere,surface,volume
        !           386: bill,dollar
        !           387: 
        !           388: average,dice
        !           389: area,grains,length,rectangle,square,surface
        !           390: area,digits,radius,sphere,spheres,square,surface
        !           391: 
        !           392: angle,degrees,radian
        !           393: angle,degrees,polygon
        !           394: bus,drops,falling,rain,velocity
        !           395: ball,train,velocity
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        !           457: 
        !           458: height,maximum,speed,thrown,upward
        !           459: average,graph,velocity
        !           460: average,graph,runner,velocity
        !           461: average,displacement,graph,runner,velocity
        !           462: airplane,ground,head,runway,speed,tail,wind
        !           463: displacement,length,particle,position
        !           464: mass,motion,speed
        !           465: car,light,overtake,traffic,traveling,truck
        !           466: basket,basketball,jump
        !           467: concrete,floor,golf,height
        !           468: automobile,brakes
        !           469: breaks,cable
        !           470: 
        !           471: aint
        !           472: 
        !           473: Test,sequence
        !           474: algebra,math
        !           475: 
        !           476: 
        !           477: 
        !           478: unit,si,units
        !           479: scales,time,interval,measurements
        !           480: sigfigs,digits,digit,significant
        !           481: figures,digits,significant
        !           482: number,notation,digits,mantissa,superscripts,digit,scientific,significant,numbers
        !           483: 
        !           484: 
        !           485: 
        !           486: heat,equilibrium,forces,energy,temperature,thermal,kinetic,heating,flows
        !           487: expansion,work,strain,solids,volume
        !           488: 
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        !           491: 
        !           492: heat,energy,isobaric,work,temperature,pressure,boil,latent,piston,volume,steam,thermodynamics
        !           493: gas,expansion,work,ideal,temperature,volume,compression,isothermal
        !           494: heat,cycle,work,efficiency,temperature,th,reservoir,engine,thermodynamics,engines,cycles
        !           495: isotherm,temperatures,refrigerator,cycle,work,performance,adiabatic,efficiency,temperature,adiabat,th,carnot,engine,isothermal
        !           496: temperatures,cycle,efficiency,carnot,power,engine,thermodynamics
        !           497: masses,temperatures,heat,equilibrium,hotter,temperature,capacities,conduction,specific,mass,calorimetry,irreversible,reservoir,reversibly,entropy,capacity,transfer,process
        !           498: masses,temperatures,heat,equilibrium,insulated,temperature,thermal,specific,mass,entropy,heats
        !           499: gas,moles,free,expansion,entropy,expands,volume,ideal,process
        !           500: 
        !           501: natural,frequencies,tension,mass,harmonics,wave,linear,density,string,hz,velocity
        !           502: frequencies,superposition,fourier,fundamental,periodic,harmonics,waves,wave,harmonic,frequency
        !           503: summed,fourier,series,harmonics,wave
        !           504: shm,pendulum,oscillating,equilibrium,period,energy,length,proportional,wavelengths,amplitude,wave,string,harmonic,oscillates,frequency
        !           505: shm,pendulum,frequencies,motion,period,angular,acceleration,waves,wave,vibrations,potential,harmonic,displacement,summary,velocity,frequency
        !           506: 
        !           507: strings,sonar,motion,ultrasound,transverse,pressure,propagation,longitudinal,waves,wave,light,density,sound,string,perturbation
        !           508: youngs,solid,speed,temperature,force,modulus,fluid,waves,wave,light,sound,string,air
        !           509: delay,speed,modulus,bulk,density,sound
        !           510: wavelength,speed,fundamental,node,compressional,wave,sound,antinodes,hz,frequency
        !           511: decibel,logarithmic,pressure,logarithm,threshold,logx,decibels,vibrate,source,log,amplitude,bell,bels,intensities,bel,waves,sound,intensity,relative
        !           512: frequencies,dependent,human,threshold,db,age,sound,volume,loudness,intensity,frequency
        !           513: threshold,db,average,sound,intensity
        !           514: signals,threshold,db,intensities,level,signal,sound,music,intensity,levels,relative
        !           515: frequencies,diffraction,sounds,electromagnetic,wavelength,temperature,wave,sound,music,hz
        !           516: rarefaction,sinusoidal,waves,wave,sound,interference,condensation
        !           517: frequencies,length,destructive,sources,waves,wave,sound,interference,hz,frequency
        !           518: frequencies,amplitude,waves,beats,frequency
        !           519: motion,distance,doppler,effect,source,stationary,wave,compressions,sound,observer,velocity,frequency
        !           520: toward,doppler,speed,effect,moving,stationary,echo,sound,hz,observed,observer,velocity,frequency
        !           521: tornados,electromagnetic,thunderstorms,storm,doppler,monitoring,object,storms,speed,satellite,thunderstorm,reflected,application,radiation,applications,transmitter,waves,weather,radar,emitted,velocity,frequency
        !           522: boom,angle,speeds,noise,speed,source,sonic,waves,wave,sound,velocity,frequency,shock
        !           523: frequencies,keys,human,tonal,tenor,piano,tone,soprano,halftones,musical,bach,tones,bass,baritone,note,sound,notes,key,alto,hz,frequency,intervals,wohltemperierte
        !           524: strings,pipe,natural,frequencies,integer,length,wavelength,speed,fundamental,node,pipes,harmonics,waves,sound,string,antinodes,frequency
        !           525: pipe,speed,fundamental,beats,pipes,organ,sound,hz,frequency
        !           526: pipe,source,frequencies,db,ratios,velocities,wave,wavelength,doppler,organ,sound,air,summary,intensity,observer,velocity,beats,absolute
        !           527: 
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        !           532: differentiation,tangent,differential,derivative,calculus
        !           533: 
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        !           535: trigonometry,pythogoras
        !           536: 
        !           537: 
        !           538: kinematics,motion,kinematical,dimension,motions,physics,dynamics
        !           539: instantaneous,acceleration,average,velocity
        !           540: speed,direction,acceleration,average,physics,velocity
        !           541: acceleration,time,physics,velocity,kinematic
        !           542: 
        !           543: 
        !           544: 
        !           545: angle,coordinate,components,vector,coordinates,orthogonal
        !           546: direction,vector,addition
        !           547: subtracted,subtraction,graphical,vector,addition,vectors
        !           548: direction,components,vector,trajectory,projectile
        !           549: trajectory,height,range,projectile
        !           550: 
        !           551: 
        !           552: 
        !           553: equilibrium,acceleration,forces,static,statics,balanced
        !           554: acceleration,gravitational,friction,pulley,atwood,force
        !           555: applet,atwood
        !           556: work,gravity,force,applet,kinetic,coefficient,friction
        !           557: 
        !           558: 
        !           559: energy,unit,work,joule,dynamics,kinematics,kinetic,units
        !           560: work,path,force,pathindependent
        !           561: kg,heat,angle,energy,mechanicalwork,height,weights,work,gravity,speed,temperature,mechanical,vectors,vector,mass,potential,displacement,thermodynamics,weight
        !           562: forces,work,force,vector,kinetic,coefficient,friction,velocity
        !           563: equilibrium,forces,distance,hookes,work,force,compressed,average,law,spring,units
        !           564: equilibrium,stretched,stretches,work,gravity,force,mass,position,pulled,spring
        !           565: kinetic,pendulum,energy,height,speed,conservation,potential
        !           566: trajectory,energy,speed,kinetic,friction,potential
        !           567: frictional,forces,energy,energies,loss,nonconservative,mechanical,slope,fractional,kinetic,friction,potential
        !           568: time,horsepower,work,watt,rate,power
        !           569: energy,work,efficiency,output,power,input
        !           570: 
        !           571: 
        !           572: masses,momentum,energy,newtons,force,relation,kinetic,mass,external
        !           573: momentum,impulse,force,impact
        !           574: colliding,simulation,dimension,elasticity,collisions,applet,kinetic,simulates,elastic,inelastic,collision
        !           575: center,forces,distance,mass
        !           576: centerofmass,center,equilibrium,fosbury,height,suspension,particles,potential,suspending
        !           577: center,system,momentum,energy,force,dimensions,accelerate,collisions,kinetic,mass,elastic,inelastic,collision,velocity
        !           578: satellite,applet,orbit,velocity
        !           579: 
        !           580: 
        !           581: circle,moon,revolution,earth,rotations,rotates,siderian,revolves,solar,side,rotation,sun
        !           582: tangential,motion,angular,vector,velocities,linear,displacement,velocity
        !           583: radial,force,radius,circular,static,coefficient,friction,centripetal
        !           584: tangential,circular,acceleration,vector,motion,angular,centripetal,ac,velocity
        !           585: circular,acceleration,motion,angular,linear,displacement,velocity,kinematic
        !           586: acceleration,earth,potentials,energy,distance,gravitational,potential
        !           587: kinetic,angle,energy,distance,gravitational,speed,escape
        !           588: brahe,gravitational,geocentric,orbits,circular,galilei,galileo,planet,law,planets,constant,keplers,kepler
        !           589: radius,planetary,circular,acceleration,frictional,orbit,forces,period,mg,rotates,orbital,gravity,swing,centripetal,newtons,speed,satellite,force,plane,velocity
        !           590: 
        !           591: 
        !           592: masses,motion,object,rotational,kinematic,objects,inertia,mass,rotating
        !           593: 
        !           594: 
        !           595: universe,molecule,atoms,avogadros,molecules,body,water
        !           596: atmospheric,pa,force,bar,pressure,atm,fluid,fluids,gauge,torr,pascals,stretch,liquid,atmospheres
        !           597: compressed,stress,compressional,length,tensile,strain
        !           598: length,youngs,force,strain,modulus,stress
        !           599: youngs,stretched,rod,force,strain,modulus,stress,stretch,stressstrain,stressed
        !           600: squeeze,compress,modulus,stress,bulk,compressibility
        !           601: fluid,forces,height,density,gravity,pressuredepth,depth,force,pressure
        !           602: hydraulic,equilibrium,work,incompressible,pressure,principle,pascals,areas
        !           603: pascal,principle,hydraulic,cylinder,pump,force,lift
        !           604: dense,sinks,buoyed,upward,liquids,archimedes,displaces,density,buoyancy,pressure,weight,buoyant
        !           605: principle,archimedes,density,volume,buoyancy,force,weight
        !           606: floats,specific,density,gravity,floating,volume,iceberg,ice
        !           607: specific,density,gravity,submerging,force,buoyant
        !           608: pipe,bernoullis,forces,kinetic,energy,height,density,work,flowing,liquid,potential,pressure,velocity,flow
        !           609: height,bernoullis,velocity
        !           610: bernoulli,gauge,blood,height,density,pressure,velocity,flow
        !           611: poiseuilles,turbulent,force,pressure,viscosity,fluid,blockages,artery,liquid,poiseuille,velocity
        !           612: turbulence,turbulent,pressure,flow,nonturbulent,reynolds,velocity,capillary
        !           613: submerged,hydraulic,liquids,force,pressure,diver,strain,flow,sinks,fluid,stress,density,liquid,viscous,atmospheres
        !           614: faradays,metallic,generator,demonstration,metal,shielding,gauss,lightning,voltage,sparks,video,graaff,cage
        !           615: 
        !           616: lightning,voltage,clip,discharge,charges,video,insulator,potential
        !           617: 
        !           618: Charge,Voltage,Electrostatics
        !           619: charge,electrostatic,charging,atoms,electrons,atom,electron
        !           620: repulsion,charge,identifying,detecting,electric,charges,electroscope,light,bodies,electroscopes
        !           621: protons,electrostatic,force,electric,nucleons,nuclear
        !           622: masses,forces,protons,coulomb,gravitational,gravity,newtons,force,electrons,gravitation,mass
        !           623: coulombs,vacuum,coulomb,fields,permittivity,atoms,force,electrons,charges,medium
        !           624: coulomb,permittivity,dielectric,medium
        !           625: vacuum,ion,coulomb,negatively,permittivity,force,electrolyte,charged,vaccum
        !           626: positive,forces,charge,coulomb,force,charges
        !           627: beams,deflector,television,field,charge,force,deflected,electric,application,charges,deflect,beam,phone,electron
        !           628: charge,force,electric,charges,electron
        !           629: field,fields,point,magnitude,charges
        !           630: field,force,electric,perpendicular
        !           631: field,charge,coulomb,conducting,equipotential,charged,charges,potential
        !           632: masses,coulombs,unit,charge,coulomb,gravity,pith,force,charges,mass,microcoulomb,weight,units
        !           633: equilibrium,forces,force,vector
        !           634: vacuum,charge,coulomb,force,magnitude,charges,orbit,gold,electron,nucleus
        !           635: vacuum,coulomb,force,charges
        !           636: coulombs,charges,forces,distance,charge,particles,force
        !           637: coulombs,charge,coulomb,force,electrons,charges,electron,transfer
        !           638: 
        !           639: 
        !           640: charge,inductance,parallel,symbol,electrostatic,circuits,circuit,symbols,ground,voltage,wire,switch,charges,potentials,wires,battery,potential,capacitor,coil,resistance,alternating,resistor
        !           641: capacitors,capacitance,charge,coulomb,fields,circuits,conductors,electrical,conductor,charges,farad,volt,capacity,capacitor,faraday
        !           642: spherically,capacitance,field,charge,coulomb,pe,electrostatic,permittivity,spherical,conductor,sphere,isolated,potential,capacitor
        !           643: capacitance,grounded,charge,force,ground,concentric,sphere,isolated,capacity,potential,spheres
        !           644: energy,capacitance,repulsion,charge,work,force,charged,conductor,charges,stored,potential,capacitor
        !           645: polar,dielectrics,positive,dipoles,polarization,field,charge,molecule,changing,molecules,alignment,nonpolar,electric,thermal,dipole,charges,negative,align,density,dielectric,capacitor,flux
        !           646: capacitors,insulated,positive,energy,capacitance,polarization,field,charge,nc,plate,force,plates,electric,charged,charges,separation,dielectric,battery,potential,capacitor
        !           647: capacitors,energy,capacitance,charge,voltage,dielectric,battery,capacitor,connect
        !           648: capacitors,charge,spherical,voltage,radius,cr,sphere,microcoulomb
        !           649: 
        !           650: temperatures,resistance,resistivity,dependence,temperature
        !           651: voltage,power,dissipation,dissipate,dissipated
        !           652: 
        !           653: parallel,series,resistors,resistances,resistance
        !           654: voltmeter,voltage,galvanometer,resistance
        !           655: dissipated,resistivity,ohms,voltmeter,ammeter,law,laws,ampere,discharging,parallel,battery,capacitor,temperature,series,resistors,voltage,resistor
        !           656: heat,energy,resistors,voltage,electric,ohms,power,volts,coil,resistance,resistor
        !           657: ammeters,parallel,resistors,shunt,ohm,rs,ohms,galvanometer,ammeter,galvonometer,potential,resistance,resistor
        !           658: 
        !           659: 
        !           660: magnet,field,charge,fields,electromagnets,poles,monopoles,north,electric,pole,attract,charges,repulsive,magnets,magnetic,attractive
        !           661: angle,product,field,force,direction,vectors,vector,magnetic,perpendicular,cross,lorentz
        !           662: charge,direction,charges,pointing,force,vectors
        !           663: magnet,field,poles,lines,pole,magnetic
        !           664: field,currents,force,drift,vector,charges,magnetic,lorentz,velocity
        !           665: forces,force,directions,magnitude,direction
        !           666: forces,field,charge,hall,force,electrons,voltage,electric,charges,magnetic,potential,lorentz,electron
        !           667: force,magnitude,charged,magnetic,perpendicular,particle,coil,velocity
        !           668: amperes,field,charge,toroid,torque,force,repulsive,magnetic,cyclotron,coil,frequency,solenoid,magnetism
        !           669: force,magnitude
        !           670: differentiation,derivations,primer,formulas,integration,appendix,calculus
        !           671: 
        !           672: magnet,electromotive,faradays,force,wire,electric,emf,induced,magnetic,potential,faraday
        !           673: field,integral,integration,permittivity,monopoles,gauss,electric,free,vector,area,magnetic,flux,velocity,magnetism
        !           674: circular,field,magnetic,flux,coil
        !           675: lenzs,field,electromotive,work,faradays,force,voltage,emf,da,area,potential,coil,velocity
        !           676: coupled,oscillators,faradays,voltage,applet,ts,magnets,lenz,law,magnetic,flux,coil,oscillations,loop
        !           677: field,faradays,motional,voltage,wire,induced,area,magnetic,coil,velocity
        !           678: induction,output,magnetic,fields,information,storage,induce,electromagnet,magnetization,ferromagnetic,translated,magnetized,voltage,magnetizes
        !           679: field,work,faradays,powers,rotational,voltage,emf,induced,magnets,rotated,magnetic,power,rotating,velocity,rotate
        !           680: induced,field,magnetic,inductance,faradays,flux,coil,henry
        !           681: field,mutual,inductance,flow,magnetic,flux,solenoid
        !           682: lenzs,coils,amperes,inductance,faradays,induce,circuit,voltage,selfinductance,emf,induced,solenoids,magnetic,flux,coil
        !           683: selfinductance,inductance,flux,solenoid
        !           684: coils,ls,toroids,inductance,toroid,circuit,selfinductance,solenoids,coil,resistance,solenoid
        !           685: energy,field,inductance,circuit,voltage,kirchhoffs,magnetic,inductor,potential,resistance
        !           686: energy,inductance,stored,solenoid
        !           687: induction,coils,energy,field,inductance,induce,electricity,emf,induced,magnetic,rotation,coil,loop,solenoid
        !           688: induction,energy,inductance,voltage,magnetic,coil,velocity
        !           689: measuring,magnetic,surface,flux
        !           690: induction,field,emf,induced,magnetic,solenoid
        !           691: difference,induction,angle,wingspan,wing,voltage,induced,magnetic,rectangle,potential
        !           692: large,energy,inductor,inductance
        !           693: lenzs,field,faradays,voltage,induced,magnetic,potential
        !           694: 
        !           695: capacitors,currents,ac,voltages,circuit,voltage,sinusoidal,inductances,alternating,inductors
        !           696: charge,circuit,voltage,rc,discharge,kirchhoffs,resistor
        !           697: voltage,rc,capacitor,resistor
        !           698: kirchhoffs,inductance,battery,potential,resistance,circuit,voltage,resistor
        !           699: inductor,battery,resistance,circuit,decay
        !           700: lc,charge,inductance,circuit,voltage,oscillator,kirchhoffs,inductor,frequency,discharges
        !           701: lc,oscillation,circuit,inductor,capacitor,frequency,discharges
        !           702: oscillating,lc,oscillation,charge,capacitor,circuit,voltage
        !           703: amplitude,oscillation,inductance,harmonic,circuits,resistance,circuit,rc
        !           704: ohms,kirchhoffs,factors,currents,potential,sinusoidally,ac,voltages,circuit,voltage,alternating,resistor
        !           705: alternate,dissipation,sinusoidal,power,rootmeansquare,ac,voltage,resistor
        !           706: dissipation,power,ac,voltage,resistor
        !           707: dissipated,kirchhoffs,inductor,power,inductance,ac,resistance,circuit,inductive,voltage,frequency
        !           708: inductor,inductance,ac,circuit,inductive,voltage
        !           709: emf,kirchhoffs,capacitor,ac,resistance,circuit,voltage
        !           710: impedance,oscillation,capacitance,inductance,currents,resonance,ac,resistance,circuit,inductive,frequency,resistor
        !           711: impedance,resonant,ac,circuits,circuit,phase,voltage,frequency
        !           712: threeway,frequencies,bass,filter,signal,twoway,filters,capacitor,signals,circuit,tweeter,speaker,loudspeakers,frequency
        !           713: emf,transmission,coils,transformers,energy,transformer,power,faradays,volts,electricity,flux,ac,coil,voltage
        !           714: transformers,transformer,coil,voltage
        !           715: mechanics,computer,analog,capacitor,circuit,velocity,voltage,digital,computers
        !           716: dissipated,impedance,dc,transformer,inductor,power,device,capacitor,resonance,ac,generator,voltage,frequency,resistor
        !           717: circuits,circuit,voltage,rc,transformer,inductor,frequency
        !           718: decays,circuit,voltage,ohms,tt,battery,exponentially
        !           719: voltage
        !           720: ac,transformers,transformer,volts
        !           721: 
        !           722: amperes,charge,maxwells,flux,magnetism,maxwell,electricity,electric,waves,capacitor,displacement
        !           723: electromagnetic,efield,propagation,wave,oscillating,propagate,dipole,bfield,waves,harmonic
        !           724: efield,electric,bfield,energy,em,electromagnetic,field,magnetic,density,intensity
        !           725: oscillating,capacitance,hertz,length,wavelength,induce,wavelengths,heinrich,circuit,radiating,wire,electric,radiation,dipole,antennas,waves,emitted,frequency,alternating,loop
        !           726: vacuum,lt,electromagnetic,length,wavelength,voltage,propagating,source,amplitude,wave,energy,field,speed,ac,electric,radiation,waves,magnetic,polaroids,capacitor,oscillates
        !           727: wavelength,waves,hz,frequency
        !           728: joules,energy,electromagnetic,reflector,pressure,laser,radiation,light,perpendicularly,intensity
        !           729: length,wavelength,mhz,radio,antenna,antennas,station,fm,light,hz,frequency
        !           730: orientation,polarization,polarizers,light,polaroids,polarized,beam,polarizer,intensity
        !           731: electric,incident,energy,sunlight,field,asteroid,intensity
        !           732: polarization,polarizers,light,polarized,polarizer,orientation,percentage,unpolarized,perpendicular
        !           733: 
        !           734: 
        !           735: distance,mirror,spherical,concave,lens,projector,light,lenses,convex
        !           736: 
        !           737: angle,mirror,reflection,ray,reflected,light,mirrors
        !           738: length,convex,mirror,image,focal,magnification
        !           739: length,magnification,mirror,focal,radius,concave,curvature
        !           740: lens,lenses,diverging,intersect,focal,rays
        !           741: snells,angle,law
        !           742: snells,law,light,reflection,ray
        !           743: lens,length,lenses,image,focal,magnification
        !           744: lens,length,lenses,mirror,image,focal
        !           745: diopter,magnifying,length,diopters,inverse,image,magnification
        !           746: 
        !           747: 
        !           748: angle,telescope,angular,telescopes,microscope,eyes,eye,microscopes,angles,eyepiece,increase,image,magnification
        !           749: diopter,distance,farsighted,diopters,mirror,lens,power,lenses,nearpoint
        !           750: diffraction,slit,color,pattern,applet
        !           751: diffraction,wavelength,slit,applet,doubleslit
        !           752: 
        !           753: 
        !           754: 
        !           755: 
        !           756: 
        !           757: photoelectric,radiation,diffraction,momentum,energy,classical,position,electromagnetic,theory,physical,black,quanta,nuclear,light,atomic,simultaneously,quantization,quantum,body,newtonian,states,elements,electrons,quantized,uncertainty,subnucleon
        !           758: radiation,temperatures,incident,shifts,th,classical,electromagnetic,red,black,waves,pyrometer,radiates,wavelength,ultraviolet,infrared,absorb,radiate,wavelengths,displacement,catastrophe,temperature,body,intensity,spectrum,radiating,emitter,divergence
        !           759: radiation,wiens,black,law,emits,temperature,body,intensity
        !           760: photons,radiation,oscillator,oscillators,energy,electromagnetic,black,quanta,ultraviolet,quantization,hz,plancks,body,quantized
        !           761: photoelectric,kemax,radiation,einstein,kinetic,energy,electromagnetic,ultraviolet,work,emission,einsteins,escape,circuit,electron,function,intensity,emitted,threshold,electrons,voltage,frequency,quantized
        !           762: photoelectric,incident,energy,photocurrent,photon,light,work,voltages,effect,function,electrons,voltage,frequency
        !           763: photons,radiation,maximum,diagnostic,diffraction,bremsstrahlung,electromagnetic,wavelength,photon,atomic,xray,xrays,atoms,metal,roentgens,electron,emitted,electrons,voltage,rays,roentgen
        !           764: scattering,radiation,incident,energy,mass,electromagnetic,wavelength,photon,compton,xray,xrays,electron,ray,electrons,frequency,quantized,kinematic
        !           765: momentum,wavelike,diffract,energy,broglie,waves,wave,wavelength,light,particle,particles,particlelike,electron,electrons
        !           766: uncertain,uncertainties,momentum,energy,position,hbar,heisenberg,plancks,uncertainty
        !           767: photons,antiproton,accelerators,annihilation,antiparticle,momentum,collide,pairs,mass,protons,theory,antiprotons,charge,light,proton,particle,particles,relativity,antiparticles,quantum,electron,annihilate,accelerator,threshold,fundamental,positrons,collisions
        !           768: photons,photoelectric,radiation,momentum,energy,black,wavelength,photon,compton,proton,work,xray,body,electron,emitted,velocity,electrons,frequency,spectrum
        !           769: scattering,photoelectric,oscillator,maximum,wien,theory,broglie,relations,wavelength,heisenberg,compton,xray,quantization,minumum,harmonic,displacement,electron,critical,voltage,uncertainty
        !           770: photons,kinetic,energy,wavelength,photon,wavelengths,electron,electrons,nonrelativistic
        !           771: energy,wavelength,photon
        !           772: photoelectric,wavelength,light,potential,electrons,retarding
        !           773: monochromatic,wavelength,light,compton,electron,shift
        !           774: de,momentum,broglie,wavelength,proton,speed
        !           775: principle,position,heisenberg,velocity,uncertainty
        !           776: minimum,principle,heisenberg,uncertainty
        !           777: mass,photon,particle,electron,annihilate,frequency
        !           778: radius,atom,hydrogen,bohr,level
        !           779: focal,length
        !           780: subatomic,atom,radiation,hydrogen,energy,bohr,ev,wavelength,electron
        !           781: atom,momentum,hydrogen,bohr,level,angular,electron
        !           782: atom,hydrogen,energy,bohr,level,ev,photon,electron
        !           783: atom,scattering,orbit,rutherford,classical,charge,atomic,thomson,particle,composition,radiate,solar,atoms,quantum,orbits,observed,electron,orbited,electrons,quantized
        !           784: planck,radiation,acceleration,bohrs,hydrogen,bohr,stationary,classical,kinematical,angular,mechanics,rutherfords,emission,orbits,newtonian,states,electrons,frequency,radiating,transitions,nucleus,absorption
        !           785: radius,atom,circular,integer,momentum,bohrs,orbit,hydrogen,forces,energy,bohr,mass,charge,angular,mechanics,coulomb,gravitational,radiate,centripetal,electrostatic,radii,quantum,plancks,force,orbits,newtonian,electron,kepler,quantized,attraction,nucleus
        !           786: atom,orbit,interaction,hydrogen,kinetic,energy,bohr,coulomb,proton,potential,electron,quantized
        !           787: atom,radiation,hydrogen,energy,bohr,electromagnetic,visible,energies,absorbed,emitted,frequency,balmer,transitions,absorption
        !           788: wavelength,quantized,spectral,excited,photons,energy,atoms,lines,balmer,transition,radiation,rydberg,frequency
        !           789: radius,atom,integer,momentum,hydrogen,bohr,broglie,waves,orbits,electron
        !           790: atom,momentum,hydrogen,bohr,classical,axis,magnetic,angular,mechanics,orbital,integral,atoms,quantum,electron,levels,electrons,mechanical
        !           791: atom,exclusion,principle,bohr,atoms,quantum,electron,ground,electrons,manyelectron
        !           792: electronic,element,state,shells,periodic,filled,momentum,chemical,angular,occupied,shell,quantum,subshell,electrons,electrical,bound
        !           793: transition,photons,emit,atom,monochromatic,laser,intermediate,einstein,energy,excitations,level,decays,fraction,photon,amplification,lasers,excited,inversion,atoms,fundamental,electrons,decay
        !           794: momentum,angular,wavelength,mechanical,radius,bohr,atomic,quantum,summary
        !           795: 
        !           796: 
        !           797: 
        !           798: bottom,anti,quark,charm,quarks,proton,neutron,strange,fermilab,top,up,particle,particles,antiquarks,down
        !           799: life,decay,photons,energy,half,pion
        !           800: 
        !           801: 
        !           802: 
        !           803: capacitors,charges,rate,charge,half,halflife,capacity,capacitor,plates,voltage
        !           804: ohms,capacitance,resistance,circuit
        !           805: ohms,heated,resistance,circuit,ir,voltage,resistor
        !           806: error,ohms,circuit,voltage,resistor
        !           807: energy,temperature,mass,power,voltage,electrical
        !           808: 
        !           809: 
        !           810: 
        !           811: 
        !           812: 
        !           813: 
        !           814: direction,dc,statements,voltage
        !           815: 
        !           816: 
        !           817: 
        !           818: 
        !           819: orientation,distance,image,focal,magnification
        !           820: 
        !           821: 
        !           822: 
        !           823: 
        !           824: 
        !           825: 
        !           826: 
        !           827: 
        !           828: 
        !           829: quiz,lab,quizzes,weeks
        !           830: field,charge,force,electric
        !           831: scalars,charge,electrical,electric,corner,charges,potentials,rectangle,potential,microcoulomb,corners
        !           832: 
        !           833: 
        !           834: liquids,boiling,temperature,melting,phase,transition,solids
        !           835: 
        !           836: 
        !           837: 
        !           838: archimedes,float,pressure,diver,sink,floats,principle,applet
        !           839: 
        !           840: 
        !           841: 
        !           842: 
        !           843: 
        !           844: 
        !           845: 
        !           846: 
        !           847: 
        !           848: 
        !           849: 
        !           850: 
        !           851: 
        !           852: 
        !           853: 
        !           854: 
        !           855: 
        !           856: natural,frequency
        !           857: experiment,reference,speed,einsteins,frame,postulates,morley,laser,einstein,postulate,michelson,theory,space,light,relativity,velocity,relative
        !           858: reference,length,pythagorus,mirror,frame,dilated,clock,light,relativity,dilation,beam,velocity
        !           859: cern,clocks,lifetime,accelerator,dilated,subatomic,accelerators,atomic,dilation,muon,laboratory
        !           860: reference,twin,inertial,frame,astronaut,paradox,relativity,gamma
        !           861: reference,speed,frame,laser,einstein,postulate,velocities,relativistic,light
        !           862: hole,collapse,curved,general,gravity,schwarzschild,holes,newtonian,spacetime,radius,eddington,densities,mass,black,space,light,solar,relativity,curvature
        !           863: beta,energy,wavelength,doppler,speed,shift,relativity,lorentz,dilation,velocity,frequency,gamma,contraction
        !           864: enterprise,starship,dilation,gamma,contraction
        !           865: ship,light,starship
        !           866: period,orbital,vulcan,frame,circumference,lorentz
        !           867: speed
        !           868: momentum,energy,proton,gev,accelerator
        !           869: heavy,energy,collider,ion,energies,nuclei,brookhaven,nucleon,relativistic,gammafactor,nucleus,contraction
        !           870: reference,frame,paradox,relativistic,light,starship,voyager,relativity,dilation
        !           871: beams,mev,proton,beam
        !           872: according,lorentz,velocity,transformation
        !           873: redshifts,space,redshift,velocity
        !           874: masses,schwarzschild,radius,mass
        !           875: 
        !           876: 
        !           877: 
        !           878: 
        !           879: 
        !           880: 
        !           881: course,benenson,physics
        !           882: 
        !           883: 
        !           884: 
        !           885: multiply
        !           886: problems,Sample
        !           887: 
        !           888: 
        !           889: 
        !           890: 
        !           891: 
        !           892: course,home,topics,benenson,computers
        !           893: demo,demonstrations,welcome
        !           894: 
        !           895: rainfall,biome, precipitation, chart
        !           896: Measurement
        !           897: 
        !           898: welcome
        !           899: floats,buoyancy,archimedes,displaces,density
        !           900: ratio,density
        !           901: buoyancy,Archimedes',floaters,sinks,displaced,density
        !           902: shape,gas,fluid,volume,solid,liquid,properties,states
        !           903: energy,calorimeter, 
        !           904: aluminum,experiment,energy,nutritious,calorimetry,combustion,food
        !           905: 
        !           906: 
        !           907: 
        !           908: 
        !           909: 
        !           910: 
        !           911: instruments,wave,physics
        !           912: 
        !           913: 
        !           914: 
        !           915: 
        !           916: number,mach,sound,air,speed,formula
        !           917: waves,sound,vibrations,physics
        !           918: sound
        !           919: matter,states
        !           920: state,fluid
        !           921: fluids,states, classification
        !           922: 
        !           923: 
        !           924: 
        !           925: 
        !           926: density
        !           927: density
        !           928: 
        !           929: float,density,buoyancy
        !           930: density,buoyancy
        !           931: displace,density,buoyancy
        !           932: 
        !           933: float,density,buoyancy
        !           934: beat,beats,frequency
        !           935: Energy,motion
        !           936: 
        !           937: 
        !           938: 
        !           939: 
        !           940: 
        !           941: energy,force,deceleration
        !           942: energy,kinetic
        !           943: energy,potential
        !           944: energy,work,potential,force
        !           945: energy,speed,kinetic,potential,velocity
        !           946: work,force
        !           947: acceleration,energy,inertia,friction,work,conservation,force,weight
        !           948: 
        !           949: force,pressure
        !           950: pressure
        !           951: altitude,pressure
        !           952: depth,pressure
        !           953: floats,sinks,buoyancy
        !           954: pressure,fluid,density
        !           955: 
        !           956: heat,energy
        !           957: experiment,equilibrium,thermal,specific
        !           958: 
        !           959: 
        !           960: heat,equilibrium,temperature
        !           961: frequency
        !           962: 
        !           963: 
        !           964: 
        !           965: 
        !           966: 
        !           967: 
        !           968: 
        !           969: 
        !           970: 
        !           971: 
        !           972: 
        !           973: 
        !           974: 
        !           975: 
        !           976: 
        !           977: 
        !           978: 
        !           979: 
        !           980: equilibrium,heated,temperature
        !           981: heat,state,change,latent
        !           982: 
        !           983: heat,energy,states,latent
        !           984: heat,equilibrium,temperature
        !           985: heat,specific,boiling,change,boil,melt,temperature,melting
        !           986: heat,energy,temperature
        !           987: 
        !           988: scales,length,powers,scale,units
        !           989: 
        !           990: air,atoms,co,diagram,energy,free,glucose,height,independent,negative,net,specific
        !           991: air,black,chemical,co,collisions,color,diagram,energy,force,heat,line,molecules,reactions,temperature,temperatures
        !           992: 
        !           993: 
        !           994: 
        !           995: reflect,wave,refraction,medium,frequency,difraction
        !           996: 
        !           997: refraction,lens
        !           998: air,speed,wave,wavelength
        !           999: 
        !          1000: 
        !          1001: 
        !          1002: sound,air,number,speed,mach,formula
        !          1003: beat,beats,frequency
        !          1004: atp,contraction,energy,molecule,number,process
        !          1005: bioen,bioenergetics,energy,free,reaction,reactions,work
        !          1006: free,cells,bioenergetics,energy,reactions,biochemical,speed,glycolysis
        !          1007: 
        !          1008: 
        !          1009: acid,amino,energy,free,molecule,molecules,positive,reactions
        !          1010: acid,amino,atp,cell,cells,energy,entropy,molecule,molecules,reactions,work
        !          1011: acid,atp,energy,free,process,proteins,reactions,series,work
        !          1012: acid,amino,atp,block,carbon,charges,components,contraction,dna,negative,nucleotide,proteins,rna,structure
        !          1013: atp,cellular,chemical,co,energy,entropy,formula,free,glucose,negative,positive,reactions,respiration,states,water
        !          1014: bioen,bioenergetics,biomolecules,chemical,disorder,energy,enthalpy,entropy,free,heat,hydrolysis,molecules,processes,reaction,reactions
        !          1015: atp,electricity,processes,water
        !          1016: 
        !          1017: expression,rna,dna,specific,components,eukaryotes,gene,polymerase,chromosome,transcription
        !          1018: 
        !          1019: 
        !          1020: 
        !          1021: 
        !          1022: 
        !          1023: 
        !          1024: 
        !          1025: 
        !          1026: 
        !          1027: 
        !          1028: 
        !          1029: 
        !          1030: 
        !          1031: 
        !          1032: eukaryotes,expression,structure,genome,gene,operon,tryptophan,objectives,prokaryote,proteins,dna
        !          1033: 
        !          1034: 
        !          1035: 
        !          1036: 
        !          1037: 
        !          1038: charges,conductor,conductors,electric,electrostatic,equilibrium,field,potential,surface,volume
        !          1039: 
        !          1040: 
        !          1041: 
        !          1042: 
        !          1043: 
        !          1044: 
        !          1045: 
        !          1046: 
        !          1047: 
        !          1048: 
        !          1049: cycle,chromosomes,divide,nondividing,cell,process
        !          1050: 
        !          1051: streptococcus,mccarty,dna,principle,pneumonia,lobar,replication,transform,deoxyribonucleic,griffith,transforming,genetic,macleod,acid
        !          1052: average,energy,gas,ideal,kinetic,molecule,temperature
        !          1053: 
        !          1054: hershey,chase,dna,protein,components,bacteriophage,replication,molecules,phosphorus,transforming,genetic,radioactive,sulfur
        !          1055: 
        !          1056: 
        !          1057: angle,ball,body,charge,diagram,electric,field,forces,free,magnitude,mass,positive,string,tension,vector
        !          1058: lagging,helix,polymerase,okazaki,leading,molecule,strand,fragment,fragments,dna,replication
        !          1059: area,circular,equilibrium,ideal,law,motion,orbit,power,sun,surface,temperature
        !          1060: lagging,rna,enzyme,dna,direction,nucleotides,polymerase,replication,primosome,okazaki,leading,fragment,primer,enzymes,processes,animation,process
        !          1061: 
        !          1062: 
        !          1063: 
        !          1064: 
        !          1065: 
        !          1066: 
        !          1067: 
        !          1068: 
        !          1069: 
        !          1070: 
        !          1071: 
        !          1072: 
        !          1073: 
        !          1074: 
        !          1075: 
        !          1076: 
        !          1077: 
        !          1078: growth,cycle,biochemical,series,phase,dna,cells,processes,chromosome,cell
        !          1079: 
        !          1080: polar,plots,plot
        !          1081: polar,plots,plot
        !          1082: 
        !          1083: 
        !          1084: sister,movie,material,chromatids,cycle,chromosomes,dna,protein,cells,life,chromatin,cell,genetic,process,nucleus
        !          1085: chromatids,moment,cycle,molecule,microtubules,independent,chromosomes,molecules,proteins,phase,dna,cells,structure,chromatid,chromotids,nuclear,separation,chromosome,cell,kinetochore,genetic,image,centromeres,process
        !          1086: cycle,microscope,picture,dna,cells,cell,image,process
        !          1087: activation,angle,bioen,bioenergetics,biomolecules,diagram,energy,enzyme,enzymes,free,heat,marshmallow,molecule,molecules,proteins,react,reactant,reactants,reaction,reactions,solution,speed,structure,work
        !          1088: growth,cytokinesis,microscope,chromosomes,proteins,dna,components,cells,life,daughter,chromosome,cell,nucleus,number,cycle,grow,phase,cytoplasmic,processes,separation,genetic,image
        !          1089: line,cycle,cellular,phase,dna,protein,components,cells,average,static,membranes,cell,capacity,image,nucleus
        !          1090: 
        !          1091: timeline
        !          1092: actin,myosin,organelles,cells,myofibril,structure,fibers,striated,filaments,organelle,microscope,cell,sarcomere,micrograph,fiber,muscle
        !          1093: acids,bilayer,blood,ca,carbon,cell,cells,charged,cl,glucose,lipid,lipids,membrane,membranes,nuclei,organelles,proteins,red,solution,structure
        !          1094: vesicles,organelles,golgi,transport,secretory,chloroplast,cytosol,proteins,cellular,membrane,dna,protein,free,endoplasmic,animal,cells,structure,ribosomes,membranes,reactions,nuclear,reticulum,cell,lipids,lipid,plant,respiration,nucleus
        !          1095: activity,atp,biochemical,biomolecules,cell,cells,cellular,center,chemical,dna,endoplasmic,energy,er,glucose,lipids,liver,lysosomes,membrane,membranes,mitochondria,molecules,nuclear,nuclelus,nucleus,process,processes,proteins,reflected,respiration,reticulum,ribosomes,rough,structure
        !          1096: cytoskeletal,organelles,cells,structure,filaments,axons,neuron,organelle,nucleolus,microtubules,nerve,cell,network,dendrites,cytoskeleton,neurons,electrical,nucleus
        !          1097: organelles,vacuole,endoplasmic,cells,structure,golgi,fibers,organelle,nucleolus,chloroplasts,cellulose,photosynthesis,storage,reticulum,plasma,cell,polysaccharide,mitochondria,water,membrane,nucleus
        !          1098: organelles,vacuole,paramecia,cells,lysosome,cell,protists,epithelial,cilia,amoeba,paramecium,vesicle,eukaryotes,ciliates,eukaryotic
        !          1099: morphology,growth,tumor,cells,metastatic,structure,cancerous,cell,dedifferentiated,cancer
        !          1100: vesicles,neuron,picture,neuromuscular,membrane,muscle,actin,myosin,cells,structure,nerve,cell,nucleus
        !          1101: 
        !          1102: 
        !          1103: alleles,mendel,mendels,genetics,inheritance,genetic,gregor,inherited
        !          1104: pisum,assortment,mendel,independent,pea,sativum,genetics,inheritance,genetic,gregor
        !          1105: hybrid,recessive,mendel,hybridization,dominant,genetics,genetic,filial
        !          1106: mendel,haploid,diploid,diploidy,homologs,chromosome,genetic,gregor,homologous
        !          1107: mendel,inheritence,genetics,inheritance,genetic,gregor
        !          1108: 
        !          1109: 
        !          1110: cat,mendelian,genetics,inheritance,mendel,gene,color,cats,coat
        !          1111: 
        !          1112: 
        !          1113: genetic,genetics,meiosis,punnett,square
        !          1114: dihybrid,meiosis,maternal,meiotic,dominant,chromosome,dyad,allele,parental,recessive
        !          1115: crosses,genetics,independent,phenotype,probability,trihybrid
        !          1116: genetic,genetics,meiosis,synapsis,tetrad,tetrads
        !          1117: genetics,nonparental,nonrecombinant,parental,recombinant,recombination
        !          1118: 
        !          1119: 
        !          1120: carrier,chromosome,disease,duchennes,dystrophy,gene,genetic,genetics,hemophilia,muscular
        !          1121: vacuum,snells,wavelength,light,speed,index,refraction,medium,frequency
        !          1122: allele,alleles,color,gene,phenotype,pigment,pigments,protein,proteins,work
        !          1123: 
        !          1124: 
        !          1125: 
        !          1126: 
        !          1127: 
        !          1128: 
        !          1129: 
        !          1130: 
        !          1131: 
        !          1132: 
        !          1133: 
        !          1134: 
        !          1135: 
        !          1136: 
        !          1137: fructose,co,galactose,mannose,subunits,carbon,sugars,carbohydrates,hydrate,oh,sugar,ribulose,carbo,sixcarbon,glucose,units,carbohydrate
        !          1138: polymer,configuration,molecule,cellulose,carbohydrates,cell,biomolecule,function,carbohydrate,starches,starch
        !          1139: 
        !          1140: 
        !          1141: casein,proteins,protein,biomolecule,amino,acid
        !          1142: proteins,biomolecule,amino,structure,lysine,molecule,protein,tryptophan,acid
        !          1143: 
        !          1144: 
        !          1145: 
        !          1146: deoxy,deoxyribonucleic,nucleotide,ribonucleic,monomers,nucleotides,nucleic,acids,deoxyribose,polymers,acid,dna
        !          1147: rnas,molecule,rna,dna,uracil,acids,thymine,biomolecule,amino,polynucleotide,gene,trna,acid
        !          1148: 
        !          1149: 
        !          1150: 
        !          1151: deoxy,nucleic,rna,sugar,dna,acids,ribonucleic,deoxyribose,biomolecule,deoxyribonucleic,acid
        !          1152: biomolecules,nucleotide,nucleic,polynucleotide,activity,nucleotides,shockwave,drag,acid
        !          1153: 
        !          1154: 
        !          1155: 
        !          1156: 
        !          1157: 
        !          1158: 
        !          1159: 
        !          1160: 
        !          1161: 
        !          1162: 
        !          1163: 
        !          1164: 
        !          1165: bilayer,membrane,hydrophobic,protein,hydrophilic,membranes,phospholipid,polar,structure,fabric,phospholipids,cytoplasm
        !          1166: 
        !          1167: 
        !          1168: 
        !          1169: 
        !          1170: 
        !          1171: 
        !          1172: 
        !          1173: 
        !          1174: 
        !          1175: 
        !          1176: 
        !          1177: 
        !          1178: 
        !          1179: cycle,components,activity,cell,image,process
        !          1180: 
        !          1181: 
        !          1182: 
        !          1183: 
        !          1184: 
        !          1185: 
        !          1186: 
        !          1187: 
        !          1188: 
        !          1189: chain,cycle,electron,krebs,mitochondria,mitochondrion,respiration,transport
        !          1190: aerobic,anaerobic,fermentation,glycolysis,respiration
        !          1191: anaerobic,fermentation,glycolysis,resp,respiration
        !          1192: co,fermentation,glucose,glycolysis,respiration
        !          1193: atp,coenzyme,glucose,glycolysis,nad,nadh,respiration
        !          1194: exercise,glycolysis,respiration
        !          1195: cycle,glycolysis,krebs
        !          1196: co,cycle,glycolysis,krebs,mitochondria,respir,respiration
        !          1197: acetyl,acetylcoa,coa,cycle,glycolysis,krebs,respiration
        !          1198: cycle,glycolysis,krebs,oxidation,respiration
        !          1199: co,cycle,glycolysis,krebs,respir,respiration
        !          1200: kg,ma,force,acceleration,static,mass,coefficient,friction
        !          1201: simulation,gravity,force,friction,trajectories,accelerates,air,resistance,velocity,terminal
        !          1202: forces,kinetic,static,coefficient,friction,balance,force,balanced
        !          1203: characterization,components,forces,kinetic,static,coefficient,perpendicular,friction,inclined,force,plane
        !          1204: gene,dna, rna, protein,transcription
        !          1205: 
        !          1206: 
        !          1207: 
        !          1208: rna,rrna,mrna,translation,protein,gene,trna,ribosome
        !          1209: rnas,nucleotide,rna,ribosomal,proteins,mrna,translation,protein,structure,ribosomes,trna,transfer
        !          1210: 
        !          1211: nucleotide,rna,cystic,rrna,cftr,dna,translation,protein,ribosomes,codon,gene,trna,ribosome,fibrosis
        !          1212: 
        !          1213: 
        !          1214: polymerase,region,rna,factors,promoter,transcription,dna
        !          1215: angle,block,degrees,inclined,maximum,plane,solid
        !          1216: protein,termination,polymerase,rna,transcription,dna
        !          1217: polarity,protein,nucleotides,transcription
        !          1218: translation,protein,gene,polymerase,transciption,rna,amino,nucleoside,acid,dna
        !          1219: 
        !          1220: 
        !          1221: 
        !          1222: 
        !          1223: 
        !          1224: 
        !          1225: 
        !          1226: 
        !          1227: 
        !          1228: 
        !          1229: 
        !          1230: macromedia,genes,proteins,translation,protein,activity,gene,shockwave,transcription
        !          1231: 
        !          1232: frequency
        !          1233: 
        !          1234: concept,solution
        !          1235: 
        !          1236: virtual,concave,convex,image
        !          1237: incidence,angle,refraction,light
        !          1238: food,energy
        !          1239: 
        !          1240: energy
        !          1241: 
        !          1242: 
        !          1243: 
        !          1244: migration,chlorophyll,pigment,xanthophyll,carotene,photosynthesis,chromatography,chromatogram,absorption,spinach
        !          1245: 
        !          1246: pendulum,period,wave
        !          1247: 
        !          1248: 
        !          1249: speed,electromagnetic,medium,waves,wave
        !          1250: amplitude,trough,crest,properties,hertz,troughs,sine,curve
        !          1251: physics,instruments,wave
        !          1252: sound,vibrations,physics,waves
        !          1253: sound,vibrations,physics,waves
        !          1254: sound,vibrations,physics,waves
        !          1255: sound,vibrations,physics,waves
        !          1256: 
        !          1257: modulus,transverse,harmonic,glockenspiels,bar,harmonics,youngs,frequency
        !          1258: spinach,chromatography,chlorophyll,carotene,solvent,pigment,xanthophyll
        !          1259: spinach,chromatography,chlorophyll,migrated,pigments,plant
        !          1260: 
        !          1261: kinematic,average,position,physics,velocity
        !          1262: energy,molecules,sunlight,organic,light
        !          1263: energy,compounds,sunlight,plants,organic,light
        !          1264: dioxide,energy,sunlight,carbon,captured,light,stored,nadph,atp
        !          1265: calvin,cycle,adenosine,light,photosynthesis,photolysis
        !          1266: reactant,light
        !          1267: products,product,light
        !          1268: nadph,nadp
        !          1269: adp,atp
        !          1270: co
        !          1271: adp,atp,co
        !          1272: 
        !          1273: temp,energy,combustion,temperature,mass,calorimetry,food
        !          1274: kg,pounds,mass,conversion,weigh,kgs,weight,pound
        !          1275: reduced,energy,calvin,electrons,atp,oxidized,chloroplasts,nadph,sun,nadp,plant
        !          1276: instantaneous,graph,velocity
        !          1277: sound,intensity
        !          1278: sound,intensity
        !          1279: power,sound,intensity
        !          1280: sound
        !          1281: 
        !          1282: speed,average
        !          1283: length,components,component,coordinates
        !          1284: 
        !          1285: 
        !          1286: angle,vectors,graphical,vector
        !          1287: addition,direction,vector
        !          1288: reflection
        !          1289: 
        !          1290: 
        !          1291: 
        !          1292: 
        !          1293: motion,magnet,forces,reaction,law,laws,friction,gravity,action,newtons,force,dynamics,kinematics,inertia,magnetic,weight
        !          1294: 
        !          1295: 
        !          1296: 
        !          1297: motion,projectile,velocity
        !          1298: energy,transport,glycolysis,electron,sugarproducing
        !          1299: energy,transport,molecules,effect,water,atps,plants,organic,light,coenzyme,electron
        !          1300: energy,sugar,carotenoidsyellow,light,photosynthesis
        !          1301: product,waste,cellular,glucose,breakdown,pyruvate,fuel,respiration
        !          1302: compounds,formula
        !          1303: 
        !          1304: 
        !          1305: energy,work,kinetic,potential,velocity
        !          1306: 
        !          1307: 
        !          1308: 
        !          1309: 
        !          1310: 
        !          1311: 
        !          1312: 
        !          1313: 
        !          1314: 
        !          1315: 
        !          1316: 
        !          1317: 
        !          1318: 
        !          1319: 
        !          1320: 
        !          1321: 
        !          1322: 
        !          1323: 
        !          1324: 
        !          1325: motion,collisions,momentum,energy,action,force
        !          1326: 
        !          1327: momentum,direction,mass,velocities,linear,velocity,momenta
        !          1328: momentum,forces,energy,energies,force,collisions,vector,collide,kinetic,velocities,elastic,conserved,conservation,inelastic,collision,momenta
        !          1329: 
        !          1330: 
        !          1331: 
        !          1332: 
        !          1333: 
        !          1334: 
        !          1335: 
        !          1336: 
        !          1337: 
        !          1338: 
        !          1339: 
        !          1340: 
        !          1341: 
        !          1342: 
        !          1343: 
        !          1344: 
        !          1345: 
        !          1346: 
        !          1347: 
        !          1348: 
        !          1349: 
        !          1350: 
        !          1351: 
        !          1352: 
        !          1353: 
        !          1354: 
        !          1355: 
        !          1356: 
        !          1357: 
        !          1358: 
        !          1359: 
        !          1360: 
        !          1361: 
        !          1362: 
        !          1363: 
        !          1364: 
        !          1365: 
        !          1366: 
        !          1367: 
        !          1368: 
        !          1369: 
        !          1370: 
        !          1371: 
        !          1372: 
        !          1373: 
        !          1374: 
        !          1375: 
        !          1376: 
        !          1377: 
        !          1378: 
        !          1379: 
        !          1380: 
        !          1381: 
        !          1382: 
        !          1383: 
        !          1384: 
        !          1385: 
        !          1386: 
        !          1387: 
        !          1388: 
        !          1389: 
        !          1390: 
        !          1391: 
        !          1392: 
        !          1393: 
        !          1394: 
        !          1395: 
        !          1396: 
        !          1397: 
        !          1398: 
        !          1399: 
        !          1400: 
        !          1401: 
        !          1402: 
        !          1403: 
        !          1404: 
        !          1405: 
        !          1406: 
        !          1407: nomenclature
        !          1408: nomenclature
        !          1409: compounds,formula
        !          1410: 
        !          1411: energy,work,acceleration,kinetic,accelerates,velocity
        !          1412: bouncing,energy,gravitational,height,mass,bounce,potential
        !          1413: angle,energy,net,work,force,acceleration,kinetic,coefficient,friction,inclined,velocity
        !          1414: speed,average,mass,power
        !          1415: energy,efficiency,watts,flow,output,power,conservation
        !          1416: energy,speed,kinetic,mass,velocity
        !          1417: work,resistance,joules,angle,force,coefficient,air,drag,velocity
        !          1418: energy,force,spring,potential,displacement
        !          1419: heat,frictional,energy,force,coefficient
        !          1420: energy,efficiency,watts,power,engine,potential,velocity
        !          1421: momentum,energy,lost,kinetic,collision,velocity
        !          1422: momentum,collides,height,friction,conservation,hf,inelastic,collision
        !          1423: momentum,impulse,force,average,velocity
        !          1424: energies,kinetic,asteroid,exploding,momentum,joules,energy,conservation,bomb,explosion
        !          1425: momentum,speed,mass,velocities,conserved,friction,velocity
        !          1426: momentum,impulse,force,average
        !          1427: inelastic,momentum,energy,conservation,collision,velocity
        !          1428: momentum,angle,angles,ycomponent,magnitude,change,velocity
        !          1429: center,components,mass
        !          1430: 
        !          1431: angle,angular,righthand,vectors,vector,thumb,rule,rotation,velocity
        !          1432: polar,cartesian,coordinates
        !          1433: period,hertz,angular,revolution,speed,seconds,rotations,rotation,hz,velocity,frequency
        !          1434: tangential,center,ac,acceleration,centripetal,uniform,velocity
        !          1435: acceleration,angular,path
        !          1436: centerofmass,acceleration,forces,gravitation,gravitationally,law,gravitational,laws,gravity,particles,newtons,spheres,newton,force,orbits
        !          1437: earth,mass,law,sun,keplers
        !          1438: radiation,emissivity,radiate,temperature,stefans
        !          1439: heat,specific,latent,melt,heating,liquid,temperature,ice,water,heats
        !          1440: heat,mass,latent,vaporization,vapor,temperature,water
        !          1441: thermal,heat,energy,weight,mechanical
        !          1442: heat,energy,combustion
        !          1443: equilibrium,temperature,copper
        !          1444: heat,boil,temperature
        !          1445: immersion,joules,watt,power,joule,temperature,watts
        !          1446: heat,specific,equilibrium,calorimetry,temperature
        !          1447: tungsten,temperature,watt,emissivity,surface
        !          1448: temperatures,heat,work,conductivity,degree,temperature,ratio,flow
        !          1449: temperatures,heat,degrees,temperature,flow,thermal,effective,conductivity
        !          1450: degrees,temperature,sound,celsius,velocity
        !          1451: angular,tension,magnitude,acceleration,rotate,absolute,gravity,torque,newtons,ar,rotational,dynamics,inertia,ia
        !          1452: equilibrium,angle,energy,work,torque,force,rotational,potential
        !          1453: slide,angular,rotational,translating,ra,vectors,acceleration,slipping,rotates,linear,rotating,wheel,slides,rolling,velocity,rotate,translational
        !          1454: angular,torque,counterclockwise,force,righthandrule,clockwise,direction,acceleration,vector,inertia,perpendicular,cross
        !          1455: magnitude,center,acceleration,mass,torque,force,tension
        !          1456: center,equilibrium,fulcrum,rotational,mass,position
        !          1457: inertia,axis,rotates,perpendicular,moment,rotating,parallel,theorem,plane
        !          1458: energy,mgh,height,work,gravity,speed,rotational,kinetic,inclined,rotation,potential
        !          1459: angular,parallel,speed,skaters,mass,rotation,paths,velocity
        !          1460: acceleration,kinetic,inertia,gravitational,height,conservation,centripetal,potential,rotational,velocity,translational
        !          1461: momentum,angular,moment,inertia,conservation,rotation
        !          1462: energy,moment,rotational,kinetic,inertia,rotation
        !          1463: motion,speed,circular,magnitude,acceleration,centripetal,constant
        !          1464: speed,acceleration,centripetal,curvature
        !          1465: speed,force,acceleration,friction,centripetal,curvature
        !          1466: frictional,angular,force,friction,centripetal,velocity
        !          1467: pendulum,swings,circle,angle,speed,conical,mass,swing
        !          1468: minimum,energy,energies,height,force,mechanical,acceleration,kinetic,conserved,friction,conservation,centripetal,potential,weight,velocity
        !          1469: energy,height,work,gravity,force,mass,theorem
        !          1470: radius,orbit,law,keplers
        !          1471: geostationary,speeds,orbital,speed,satellite,radius,satellites,orbit
        !          1472: energy,satellite,satellites,orbit,kinetic,mass,orbiting
        !          1473: revolutions,acceleration,angular,revolution,accelerates,speed,radianss,radians
        !          1474: energy,potential
        !          1475: atomos,protons,molecule,neutron,matter,atoms,molecules,atom,angstrom,atomic,avogadro,classify,isotope,mole,nucleus
        !          1476: gas,state,applet,forms,liquids,squeeze,solids,gases,solid,plasma,phases,liquid,aggregation,matter,ions,atoms,states,pressure,stars,electrons
        !          1477: distend,shape,gas,liquids,elastic,compress,compressibility,solids,gases,solid,incompressible,liquid,condensed,atoms,elastically
        !          1478: youngs,shearing,modulus,shear,stress,solids
        !          1479: mercury,altitude,barometer,torricelli,torr,weather,height,pressure
        !          1480: volumes,eddies,height,incompressible,moving,dynamics,cylinders,viscosity,fluid,volume,particles,viscous,velocity
        !          1481: gravity,free,fall
        !          1482: unit,britain,british,units
        !          1483: si,dimensional,analysis,dimensionality,dimensions
        !          1484: sf,digits,accuracy,sfs,significant
        !          1485: kg,intrinsic,mass,scale
        !          1486: gas,charles,gases,ideal,pv,temperature,pressure,densities,law,laws,volume,thermodynamic,thermodynamics
        !          1487: gas,boltzmanns,ideal,co,moles,kelvin,constant
        !          1488: degrees,temperature
        !          1489: gas,nitrogen,atm,moles,atmospheres
        !          1490: concrete,thermal,coefficient,linear,contracting,contract,contraction
        !          1491: gas,molecule,ideal,temperature,kinetic
        !          1492: gasoline,temperature,thermal,coefficient,volume,surface
        !          1493: gas,thermometer,temperature,pressure,kelvin,volume,constant
        !          1494: gas,energy,molecule,speed,molecules,average,kinetic,solution
        !          1495: gas,ideal,degrees,temperature,pressure,moles,volume
        !          1496: heat,conduct,atoms,temperature,conductors,conduction,thermal,conductor,insulators,solids
        !          1497: equilibrium,water
        !          1498: 
        !          1499: gas,heat,isobar,isobaric,work,ideal,pressure,processes,constant,process
        !          1500: gas,heat,energy,work,ideal,diagram,temperature,pressure,bath,reservoir,volume,capacity,isothermal,process
        !          1501: heat,equilibrium,helmholtz,energy,work,efficiency,molecules,temperature,perpetual,thermal,law,perpetuum,carnot,entropy,engine,conservation,relativity,thermodynamics,transfer
        !          1502: heat,joules,colder,refrigerator,work,cool,joule,temperature,kinetic,refrigerators,reservoir,cooler,engines,cycles
        !          1503: heat,cycle,adiabatic,efficiency,carnot,reversible,processes,entropy,cycles
        !          1504: heat,cycle,adiabatic,efficiency,carnot,processes,entropy,cycles
        !          1505: gas,expansion,work,ideal,molecules,spontaneously,free,irreversible,entropy,volume,inverse,isothermal,process
        !          1506: 
        !          1507: 
        !          1508: 
        !          1509: harmonic,displacement,oscillates
        !          1510: gravitational,force,frictionless,amplitude,acceleration,static,displaced,coefficient,friction,spring,harmonic,displacement
        !          1511: shm,motion,harmonic,velocity
        !          1512: energy,ratio,phase,amplitude,waves,wave,wa,frequency
        !          1513: 
        !          1514: frequencies,violinist,percent,tension,violin,string,hz,frequency
        !          1515: wavelength,waves,wave,hz,velocity,frequency
        !          1516: 
        !          1517: 
        !          1518: sounds,energy,wavelength,radii,pressure,absorption,source,amplitude,concentric,rate,radiates,power,wave,sound,intensity,emitted,frequency
        !          1519: distance,proportional,intensities,power,sound,intensity
        !          1520: length,destructive,wavelength,waves,sound,destructively,interference,interfere,hz,frequency
        !          1521: doppler,effect,source,sound,hz,observed,velocity,frequency
        !          1522: pipe,resonant,length,temperature,velocities,organ,hz,frequency
        !          1523: vibration,length,youngs,wavelength,fundamental,modulus,longitudinal,wave,density,sound,velocity,frequency
        !          1524: sounds,distance,youngs,speed,modulus,density,sound,velocity
        !          1525: temperature,pressure,modulus,bulk,density,sound,underadiabatic,velocity
        !          1526: pipe,fork,length,fundamental,beats,organ,beat,velocity,frequency
        !          1527: pipe,decibel,doppler,transverse,speed,effect,temperature,fundamental,source,intensities,waves,wave,density,sound,intensity,observer,velocity,frequency
        !          1528: acceleration,earth,sphere,gravitation,law,gravitational,gravity,gr,newtons,force,weight
        !          1529: 
        !          1530: world
        !          1531: sum
        !          1532: physlets
        !          1533: autotrophs,requirements,energy,chain,food,herbivores,omnivores
        !          1534: cells,lysosome,extracellular,histamine,plasma,cell,macrophages,cellmacrophages,membrane,immune
        !          1535: 
        !          1536: metabolism,table,nitrate,growth,nitrateabsent,yeast,nitratepresent,data
        !          1537: photosynthesis,respiration
        !          1538: 
        !          1539: 
        !          1540: energy,mgh,energies,gravitational,acceleration,potential
        !          1541: momentum,impulse,force,mass,velocity
        !          1542: meiosis,animation
        !          1543: 
        !          1544: percent
        !          1545: percent
        !          1546: 
        !          1547: 
        !          1548: 
        !          1549: 
        !          1550: 
        !          1551: 
        !          1552: 
        !          1553: 
        !          1554: 
        !          1555: 
        !          1556: 
        !          1557: 
        !          1558: 
        !          1559: 
        !          1560: 
        !          1561: 
        !          1562: 
        !          1563: 
        !          1564: reflect,soybeans,soybean,colors,question,color,reactions,light,pigments,problem,photosynthesis,leaf,absorb,photosynthetic
        !          1565: 
        !          1566: momentum,energy,collides,elastically,collisions,velocities,elastic,collision,velocity
        !          1567: 
        !          1568: accessory,chlorophyll,pigment,pigments,carotenoid,problem,spectra,photosynthesis,absorb,soybean,spectrum,question,absorption
        !          1569: 
        !          1570: center,of mass
        !          1571: momentum,ball,impulse,speed,force,mass
        !          1572: 
        !          1573: 
        !          1574: 
        !          1575: 
        !          1576: 
        !          1577: organelles,thylakoid,chloroplast,photo,matrix,granum,membrane,stroma,reactions,light,chloroplasts,photosynthesis,plant
        !          1578: protein,chlorophyll,calvin,cycle,plastocyanin,pigments,photosynthesis,reductase,coenzyme,photo,nadph,photosystem,chlorophyllprotein,enzyme,nadp,ferredoxin
        !          1579: thylakoid,transport,photo,ps,membrane,atp,reactions,light,photosynthesis,synopsis,nadph
        !          1580: scheme,cytochrome,ferrodoxin,calvin,cycle,photo,photosystem,diagram,plastoquinone,z,synthesis,plastocyanin,photosynthesis,nadph
        !          1581: lumen,chlorophyll,plastoquinone,thylakoid,synthesis,membranes,calvin,cycle,photosynthesis,photo,coenzyme,nadph,photosystem,enzyme,nadp,membrane,stroma,atp
        !          1582: units
        !          1583: polar,dimension,vectors,vector,twodimensional
        !          1584: 
        !          1585: co,rubp,phosphoglycerate,calvin,lego,cycle,photosynthesis,rubisco,nadph,glyceraldhyde,atp
        !          1586: 
        !          1587: 
        !          1588: co,calvin,cycle,chloroplast,photosynthesis,photo,nadph,glucose,atp
        !          1589: co,rubp,synthesis,calvin,cycle,photosynthesis,rubisco,os,photo,nadph,atp
        !          1590: sucrose,carbon,transport,carbohydrates,biochemical,glucose,fructose,photosynthesis
        !          1591: Calvin,synthesis,cyanobacteria,cycle,chloroplasts,photosynthesis,storage,gp,symbiotic,evolutionary,prokaryotic,plant,glucose,carbohydrate,starch
        !          1592: polymer,wall,carbon,structural,cellulose,photosynthesis,cell,hemp,walls,skeleton,fiber,plant,rayon,glucose,biosphere,starch
        !          1593: biomolecules,carbon,carbohydrates,biochemical,amino,glucose,atp,carboydrates,photosynthesis,acids,glycolysis
        !          1594: 
        !          1595: calvin,product,soybeans,cycle,biochemical,soybean,biosynthesis,glyceraldehyde,phosphate,production,photosynthesis
        !          1596: 
        !          1597: 
        !          1598: 
        !          1599: unit,convert,si,conversion,british,units,conversions
        !          1600: percent,sale,price
        !          1601: 
        !          1602: 
        !          1603: 
        !          1604: 
        !          1605: 
        !          1606: 
        !          1607: concept,sciences,science,scientific,physics,explanations
        !          1608: macromolecule,monomer,poly,polymer,mono,subunits,biomolecules,synthesis,monomers,subunit,molecule,dehydration,macromolecules,covalent,biomolecule,polymers,oligomer,molecules,hydrolysis,units,bond,tetramer,starch
        !          1609: pleated,proteins,secondary,amino,structure,ahelix,helices,ahelices,protein,cytochromef,bpleated,acids,carboxyl,sidechains,hbond,acid
        !          1610: cytochrome,tertiary,amino,proteins,protein,cysteine,cysteines,cytochromef,proteinis,acids,acid
        !          1611: quaternary,chain,subunits,polypeptides,structure,subunit,polypeptide,proteins
        !          1612: subunits,rubisco,enzyme,proteins,ribulose,quaternary,protein,quarternary,enzymes,structure,active
        !          1613: protein,enzymes,chemical,papains,transport,structural,biochemical,storage,acids,casein,amino,papain,proteins,acid
        !          1614: carbohydrates,biomolecule,carbohydrate,starch
        !          1615: nucleic,nucliec,uracil,nucleotides,pyrimidines,acids,purines,pyrimidine
        !          1616: biomolecules,cholesterol,lipids,lipid
        !          1617: biomolecules,molecule,molecules,biological,lipid
        !          1618: steroids,biomolecules,testerone,lipids,biomolecule,cholesterol,lipid,triglycerides,fat,phospholipids,acid
        !          1619: biomolecules,molecule,glycerol,saturated,monounsaturated,biomolecule,polyunsaturated,molecules,fats,triglycerides,lipids,unsaturated,lipid,fat,acid
        !          1620: testosterone,steroids,biomolecules,steroid,estradiol,anabolic,lipids,biomolecule,molecules,lipid,fat
        !          1621: sidechain,casein,amino,proteins,protein,acids,acid,backbone
        !          1622: lysine,polar,histidine,leucine,met,phenylalanine,cys,asparagine,tyrosine,sidechain,thr,chemistry,alanine,ion,arginine,aspartic,lys,tyr,methionine,pro,glutamine,amine,amino,ph,arg,glycine,proteins,asn,asp,glutamic,hydrophobic,nonpolar,isoleucine,protein,chain,cysteine,phe,hydrophilic,cyan,gln,glu,gly,trp,valine,acids,side,ser,tryptophan,proline,val,leu,threonine,ala,acid,ile,serine
        !          1623: frictionless,mass,pulley,sphere
        !          1624: dogma,rna,dna,protein,gene,transcription
        !          1625: dogma,rna,dna,protein,transcription,translation
        !          1626: translation,protein,messenger,dogma,nucleotide,nucleotides,rna,ribosomal,transcription,dna
        !          1627: 
        !          1628: nucleotide,ribonucleoside,polymerase,rna,strand,template,phosphodiester,transcriptionfactors,transcription,dna
        !          1629: cap,protein,poly,capping,gene,transcript,intron,rna,exon,eukaryotic,tail,splicing,mrna,transcription
        !          1630: metabolism,respiration, anaerobic, aerobic, fermentation,nitrate,growth,yeast,aeruginosa,deep,data
        !          1631: respiration,fermentation, anaerobic, aerobic
        !          1632: nitrate,specimen,metabolism,absence,agar
        !          1633: yeast,metabolism,aeruginosa,pseudomonas
        !          1634: recycle,acceptor,yeast,aeruginosa,ferment,nad,electron
        !          1635: nitrate,oxygen,acceptor,aerobic,anaerobic,metabolism,electrons,atp,fermentation,glycolysis,nad,electron,respiration
        !          1636: nitrate,oxygen,growth,trypticase,energy,acceptor,yeast,aerobic,anaerobic,metabolism,grow,culture,aeruginosa,soy,respirers,cells,organic,fermentation,fermenters,pseudomonas,food,metabolize,denitrifying,inorganic,nad,electron,respiration
        !          1637: fermentation,aerobic,anaerobic,respiration
        !          1638: transport,photosynthesis,electron,respiration
        !          1639: 
        !          1640: aerobic,anaerobic,fermenters,metabolize
        !          1641: acceptor,product,aerobic,anaerobic,fermenter,organic,fermentation,inorganic,electron,respirer,respiration
        !          1642: nitrate,growth,metabolism,deep,agar
        !          1643: net,aerobic,anaerobic,atp,fermentation,glycolysis,respiration
        !          1644: oxygen,cellulose,recycles,fats,glucose,atp,fermentation,cell,glycolysis,respiration,starch
        !          1645: citric,cycle,atp,krebs,pyruvic,glycolysis,electron
        !          1646: energy,yeast,glucose,atp,fermentation,photosynthesis,respiration
        !          1647: 
        !          1648: photosynthesis,chloroplasts, absorbance,color
        !          1649: rate,chloroplasts,photosynthesis
        !          1650: experiment,dpip,chloroplasts,reduce,data
        !          1651: dpip,chloroplasts,boiled,reduce,dark
        !          1652: reduction,dpip,light,chloroplasts,boiled,unboiled,reduce,dark
        !          1653: carotenes,xanthophylls,yellow,activity,chloroplasts,pigments,increase,chlorophylls,photosynthetic
        !          1654: oxygen,photosystems,chlorophyll,reduced,cytochrome,oxidized,energy,absorbs,spectrophotometry,dye,organic,dpip,absorbance,light,chloroplasts,colorimeter,chloroplast,unboiled,photosynthesis,nadph,photosystem,objectives,electron,data,atp
        !          1655: 
        !          1656: 
        !          1657: simulation,lab,plants,light,questions,photosynthesis,excite,electrons
        !          1658: blue,colorless,reduced,oxidized,energy,dpip,light,questions,absorb,excited,nadph,nadp,electrons,atp
        !          1659: 
        !          1660: motion,kinematic,acceleration
        !          1661: direction,distance,displacement,physics
        !          1662: 
        !          1663: 
        !          1664: 
        !          1665: 
        !          1666: radius,height
        !          1667: lenght
        !          1668: 
        !          1669: mass
        !          1670: 
        !          1671: weight
        !          1672: weight
        !          1673: 
        !          1674: 
        !          1675: time
        !          1676: 
        !          1677: 
        !          1678: 
        !          1679: 
        !          1680: 
        !          1681: 
        !          1682: 
        !          1683: unit,length,dimension,meters,converted,dimensions,dimensional,analysis,mass,dimensionality,units
        !          1684: research,experiment,scientist,qualitative,descriptive,independent,controlled,hypothesis,quantitative,scientific,measurements,method,data,numerical,variable
        !          1685: experiment,growth,conclusion,information,condition,measurements,plant,explanation,variable
        !          1686: experiment,scientist,measured,dependent,independent,hypothesis,measuring,test,variable
        !          1687: 
        !          1688: diffusion,starch, iodine, cell membrane,beaker,baggy
        !          1689: lab,color,diffusion,iodine,procedure,data,starch
        !          1690: experiment,diffused,simulation,beaker,baggy,lab,transport,iodine,cell,membrane,starch
        !          1691: pores,baggy,iodine,size,membrane,starch
        !          1692: baggy,cell,fish,salt,water,membrane,freshwater
        !          1693: gene,translation,protein,nucleotide,proteins,dna
        !          1694: rnas,subunits,unit,rna,ribosomal,rrna,function,mrna,translation,ribosomes,subunit,functional,ribosome,trnas
        !          1695: protein,rnas,ribosomes,subunit,rna,eukaryotic,bacterial,bacteria,ribosome,ribosomal,rrna,prokaryotic,transfer
        !          1696: met,rna,methionine,rrna,triplet,mrna,translation,protein,codons,codon,ribosome
        !          1697: reproduction,organized,inherited,membrane
        !          1698: communities,cells,structure,environment,organism,maintaining,cell,temperature,interactions,function,organisms,structures
        !          1699: 
        !          1700: conversions
        !          1701: Lab,set up
        !          1702: unit
        !          1703: deviation,error
        !          1704: speed,si,direction,vector,average,displacement,physics,velocity
        !          1705: speed,average,position,displacement,physics,velocity
        !          1706: instantaneous,rate,physics,velocity
        !          1707: speed,noncalculus,instantaneous,calculus,velocity
        !          1708: slope,graphing,average,graphs,graph,velocity
        !          1709: kinematic
        !          1710: acceleration,graphs,constant,physics
        !          1711: acceleration,physics,velocity,kinematic
        !          1712: kinematic,kinematics,physics,velocity
        !          1713: digits,figuresw,digit,significant,units
        !          1714: unit,conversion
        !          1715: significant,figures
        !          1716: unit,conversion,km,hour,conversion
        !          1717: force,friction
        !          1718: science,sciences,physics,interconnections
        !          1719: unit,units
        !          1720: speeds,vertical,position,axis,graphs,displacement,horizontal
        !          1721: speed,nonconstant,plot,accelerate,acceleration,graphs
        !          1722: time
        !          1723: time
        !          1724: velocity
        !          1725: 
        !          1726: 
        !          1727: 
        !          1728: 
        !          1729: 
        !          1730: 
        !          1731: 
        !          1732: average,velocity
        !          1733: acceleration,velocity, time,speed,free,kinematics,fall
        !          1734: 
        !          1735: distance,place,speed,accelerating,acceleration,displacement,velocity
        !          1736: 
        !          1737: 
        !          1738: 
        !          1739: 
        !          1740: 
        !          1741: coulombs,forces,force
        !          1742: positive,forces,net,charge,coulomb,force,charges,symmetry,position
        !          1743: unit,units
        !          1744: dog,photo, picture, pictures, dogs, husky, shepard, sheperd
        !          1745: center,charge,conducting,electric,field,net,spherical,surface
        !          1746: field,electric
        !          1747: magnitude,force
        !          1748: distance,charges
        !          1749: 
        !          1750: 
        !          1751: motion,trajectories,projectile,velocity
        !          1752: 
        !          1753: 
        !          1754: 
        !          1755: 
        !          1756: 
        !          1757: 
        !          1758: 
        !          1759: 
        !          1760: adding,vectors,vector
        !          1761: crossing,upstream,stream,cross
        !          1762: 
        !          1763: 
        !          1764: 
        !          1765: photosystem,act,reactions,light,photosynthesis
        !          1766: membrane,mosaic,membranes,fluid
        !          1767: sperm,membrane,fertilization,membranes,fertilize
        !          1768: fluidity,structural,glycolipids,saturated,integral,cholesterol,bilayer,proteins,function,membrane,hydrophobic,peripheral,glycoproteins,fluid,structure,membranes,functional,unsaturated,lipid,phospholipids,phospholipid
        !          1769: sperm,structural,sperms,membrane,mosaic,fluid,fertilization,membranes
        !          1770: transport,membrane,mosaic,fluid,membranes
        !          1771: membranes,diffusion,membrane
        !          1772: co,reosmosis,concentration,membranes,diffusion,gradient,osmosis,membrane
        !          1773: channels,gradient,porin,bilayer,membrane,hydrophobic,porins,hydrophilic,membranes,diffusion,channel,osmosis,ion,gated
        !          1774: membrane,electrical,atp,membranes,cotransport,transport,electrochemical,concentration,potential
        !          1775: vectors,vector,component
        !          1776: distance,speed,components,xcomponent
        !          1777: motion,direction,vector,velocity
        !          1778: motion,projectiles,projectile
        !          1779: motion,trajectories,projectile
        !          1780: motion,muzzle,trajectories,projectile,cannon
        !          1781: 
        !          1782: direction,vectors,acceleration,component,distances,projectiles,projectile,velocity
        !          1783: unit,units
        !          1784: force
        !          1785: 
        !          1786: masses,momentum,energy,newtons,force,kinetic,mass,external
        !          1787: momentum,forces,force,linear,conservation,external
        !          1788: masses,momentum,elastically,collisions,collide,kinetic,velocities,elastic,collision
        !          1789: objects,applet,mass,billiards,collision,velocity
        !          1790: colliding,momentum,stick,collisions,inelastic,totally,velocity
        !          1791: energy,sticks,height,conserved,impact,conversion,potential,inelastic,collision,velocity
        !          1792: centerofmass,center,momentum,motion,forces,newtons,force,vector,mass,law,external
        !          1793: centerofmass,center,momentum,motion,forces,force,mass,external,calculate,momenta
        !          1794: center,forces,rm,coordinate,mass
        !          1795: centerofmass,center,equilibrium,energy,motions,particles,potential
        !          1796: momentum,collisions,ineleastic,collision
        !          1797: circular,motion,chapter
        !          1798: tangential,circular,vector,motion,velocities,angular,speed,arc,displacement,velocity
        !          1799: colliding,object,asteroids,astronomers,earth,astronomical,asteroid,collision
        !          1800: satellite,applet,vector,orbit,velocity
        !          1801: energy,circular,kinematics,centripetal,velocity
        !          1802: rotation,chapter
        !          1803: torques,forces,angular,torque,ra,rt,acceleration,inertia,ia
        !          1804: angle,speed,acceleration,velocity
        !          1805: momentum,work,force,coefficient,friction,inelastic,collision,velocity
        !          1806: trajectory,angle,acceleration,velocity
        !          1807: forces,java,gravity,force,applet,beam
        !          1808: induction
        !          1809: 
        !          1810: 
        !          1811: dimension
        !          1812: faradays,voltage,induced,da,area,magnetic
        !          1813: 
        !          1814: frequencies,beats,applet,hz,beat
        !          1815: simulation,impulse,friction,momentum,applet,conservation,billiards,billiard
        !          1816: wavelength,colors,blackbody,power,wavelengths,temperature,radiation,applet,spectrum
        !          1817: 
        !          1818: calculator
        !          1819: fissions,neutron,applet,fission,fishionable,explode
        !          1820: proton,java,orbits,orbit,electrons,applet,electron
        !          1821: oscillators,oscillations,energy,applet,waves
        !          1822: oscillator,oscillations,applet,velocity,frequency
        !          1823: atomic,applet,radioactive
        !          1824: doppler,speed,applet,sound,animation,velocity
        !          1825: polar,angle,hypotenuse,angles,coordinate,vectors,vector,cartesian,orthogonal,theorem,ycomponents,pythagoras
        !          1826: induction,applet,galvanometer,velocity
        !          1827: lens,light,lenses,combination,applet,optical,rays
        !          1828: gas,thermodynamic,temperature,applet
        !          1829: quark,quarks,antiquarks,applet
        !          1830: temperatures,orbit,sun,temperature,seasons,radiation,applet,solar,rays
        !          1831: shadows,applet,shadow
        !          1832: forces,friction,gravity,force,applet
        !          1833: significant,number,numbers,applet
        !          1834: frequencies,piano,applet,sound,notes
        !          1835: 
        !          1836: trajectory,distance,speed,time,tan
        !          1837: 
        !          1838: wavelength,applet,frequency
        !          1839: colors,color,mixed,mixing,applet
        !          1840: colors,color,intensity,applet
        !          1841: tensile,diameter,wire,circular,modulus,stretch
        !          1842: projectile,derivation
        !          1843: 
        !          1844: acceleration
        !          1845: youngs,tensile,incompressible,flow,bernoullis,stress,fluids,bulk,pascals,archimedes,poiseuilles,pressure,strain,modulus,reynolds,pascal,compressional,solids,floating
        !          1846: gas,applet
        !          1847: temperature,chapter
        !          1848: polar,cartesian,coordinates
        !          1849: fahrenheits,freezing,temperatures,scales,boiling,thermometer,degrees,fahrenheit,temperature,centigrade,kelvin,conversion,celsius
        !          1850: equilibrium,joules,boltzmanns,angular,molecule,ideal,mix,temperature,pressure,average,kinetic,velocities,velocity
        !          1851: heat,energy,temperature,specific,calorimetry
        !          1852: 
        !          1853: video,clip,melts
        !          1854: video,liquids,milk,clip,irreversible,processes,irreversibly,entropy,process
        !          1855: isotherm,gas,cylinder,isotherms,adiabat,video,engine,heat,cycle,carnotcycle,phase,carnot
        !          1856: heat,cycle,work,pressure,engine
        !          1857: connected,coils,magnet,oscillate,video,coil
        !          1858: indicated,video,deflection,galvanometer,solenoid
        !          1859: video,faraday,deflection
        !          1860: galvanometer,faraday
        !          1861: video,galvanometer,faraday
        !          1862: galvanometer,faraday
        !          1863: galvanometer,faraday
        !          1864: currents,timevarying
        !          1865: amplitude,applet,sinusoidal,phases,phase,variable
        !          1866: resonance,circuit,voltage,resistor,inductance,degrees,ac,voltages,inductive,capacitor,oscillates
        !          1867: phasors,rotations,sinusoidal,voltages,phase,voltage,oscillations
        !          1868: 
        !          1869: charge,charging,circuit,ohms,capacitor
        !          1870: charge,circuits,circuit,rc,capacitor
        !          1871: ohms,battery
        !          1872: capacitors,voltage,ohms,oscillator,impedance,frequency
        !          1873: capacitance,inductance,circuit,voltage,capacitive,ohms,impedance,resistance,frequency
        !          1874: microfarad,capacitive,inductive,inductor,capacitor,frequency
        !          1875: microfarad,impedance,hz
        !          1876: resonance,circuit,ohms,hz,frequency
        !          1877: resonance,circuit,voltage,ohms,impedance,inductor,volts,frequency
        !          1878: resonance,watts,circuit,dissipated,ohms,volts,frequency,resistor
        !          1879: capacitors,microfarad,resonance,inductive,resistors,capacitive,ohms,capacitances,volt,volts,inductances,frequency,resistor,inductors
        !          1880: microfarad,circuit,ohms,volts,frequency,resistor
        !          1881: oscilloscope,sinusoidally,applet,sinusoidal,physical,oscilloscopes
        !          1882: capacitance,applet,capacitor
        !          1883: capacitance,inductance,resonance,circuit,voltage,applet,resistance,frequency
        !          1884: 
        !          1885: electromagnetic,waves
        !          1886: oscillation,field,fields,elctromagnetic,video
        !          1887: propagation,video,wave
        !          1888: electromagnetic,wavelength,absorption,wave,momentum,energy,reflection,pressure,waves,frequency
        !          1889: trajectory,acceleration,velocity
        !          1890: instantaneous,acceleration,graph,accelerations
        !          1891: forces,balance,force,frictionless,components,acceleration,unbalanced,slides
        !          1892: reaction,opposite,action
        !          1893: inertia
        !          1894: kinetic,friction,incline,weight
        !          1895: heat,temperature,bimetal
        !          1896: gleichgewicht,thermisches
        !          1897: 
        !          1898: heat
        !          1899: oscillating,equilibrium,oscillators,energy,stretched,compressed,oscillator,amplitude,stored,spring,potential,harmonic,displacement,velocity
        !          1900: pendulum,period,pendulums,video
        !          1901: shm,pendulum
        !          1902: pendulum,periods,period,acceleration,video
        !          1903: masses,simulation,transverse,waves,wave
        !          1904: overtones,oscillator,video,waves,string,frequency
        !          1905: frequencies,wavelength,standing,wave,frequency
        !          1906: vibrates,tension,fundamental,hz,frequency
        !          1907: sonar,ultrasonic,distance,wavelength,echo,waves,wave,depth,velocity,frequency
        !          1908: 
        !          1909: sound
        !          1910: speed,video,light,sound
        !          1911: sounds,db,intensities,intensity
        !          1912: decibel,bands,rock,threshold,rockbands,db,pain,sound,intensity
        !          1913: pressure,amplitude,power,wave,speakers,intensity
        !          1914: 
        !          1915: demo,oscilloscope,microphone,pressure,video,sinusoidal,waves,wave,sound
        !          1916: oscilloscope,xylophone,microphone,beats,beating,video,sinusoidal,hz
        !          1917: doppler,honking,car,video,velocity,frequency
        !          1918: exams,practice
        !          1919: telescope,telescopes,microscope,object,microscopes,diameter,objective,visual,magnification
        !          1920: 
        !          1921: unit,wavelength,want,proton,speed,subatomic,angstrom,bohr,electronvolt,electron
        !          1922: kg,system,micro,years,unit,length,kilogram,metric,days,nano,si,standard,meter,day,definition,wave,kilo,milli,units,oscillations
        !          1923: derivation,proof
        !          1924: free,time,fall
        !          1925: swimmer,swimmers,swim
        !          1926: ball,speed,soccer,fell,free,falls,fall
        !          1927: simulation,resistance,velocity
        !          1928: derivation,proof
        !          1929: forces,rope,newtons,speed,force,tension,mass,pulley
        !          1930: kg,forces,angle,force,acceleration,mass,inclined,plane
        !          1931: forces,gravity,force,weight
        !          1932: gravitational,speed,force,frictionless,inclined,plane,velocity
        !          1933: gravity,newtons,force,acceleration,kinetic,friction,velocity,terminal,falling
        !          1934: trigonometry,sin,degrees,force,cos,sine,cosine,triangle
        !          1935: fightsong,white,spartan,green,spartans
        !          1936: forces,force,acceleration,coefficient,velocity
        !          1937: capacitors,energy,capacitance,electricity,speed,electrostatic,force,circuit,conductors,resistors,voltage,dissipated,electric,insulators,galvanometer,magnetic,resistances,dielectric,capacitor,coil,resistance,resistor
        !          1938: masses,kg,deformation,frictional,forces,energy,youngs,gravitational,gravity,newtons,speed,days,satellite,bullet,temperature,force,modulus,acceleration,orbit,kinetic,mass,bullets,day,centripetal,resistance,velocity,curve
        !          1939: diopter,energy,field,polarizers,wavelength,fields,microfarads,speed,resonance,force,voltage,dissipated,ohms,concave,magnifying,magnetic,power,wave,volts,curvature,hz,polarized,exam,electron,velocity,frequency,magnification,solenoid
        !          1940: 
        !          1941: work,force,displacement
        !          1942: equilibrium,forces,energy,stretched,compress,work,force,stretching,compressed,compresses,acceleration,storing,stored,spring,stores,displacement,velocity
        !          1943: pendulum,kg,energy,gravitational,work,speed,force,accelerate,nonconservative,compressed,kinetic,power,swing,spring,inclined,potential,compression
        !          1944: 
        !          1945: 
        !          1946: 
        !          1947: 
        !          1948: 
        !          1949: 
        !          1950: pendulum,swings,energy,speed,pe,te,kinetic,potential
        !          1951: ball,energy,ramp,balls,kinetic,video,potential,inclines,roll
        !          1952: pendulum,energy,video,conserved,conservation,velocity
        !          1953: derivation
        !          1954: momentum,carts,gun,powder,gunpowder,collide,video,bounce,conserved,explodes,explosion
        !          1955: gunpowder,video
        !          1956: collisions,video,cart,videos
        !          1957: ball,oscillation,period,balls,video
        !          1958: ball,billard,collisions,balls,video,billiard,videos,collision
        !          1959: carts,speed,collisions,video,cart,collision
        !          1960: pendulum,energy,ballistic,bullet,kinetic,video,potential,inelastic,collision
        !          1961: wrench,parabola,balance,clip,video
        !          1962: derivation,proof
        !          1963: derivation,proof
        !          1964: derivation,proof
        !          1965: gas,cylinder,work,force,compresses,piston,volume,displacement
        !          1966: gas,heat,isobaric,ideal,pressure,processes,constant,process
        !          1967: gas,expansion,work,ideal,volume,compression,isothermal
        !          1968: path,independent,irreversible,processes,entropy,process
        !          1969: gas,heat,isometric,refrigerator,isobaric,cycle,work,ideal,adiabatic,efficiency,coefficient,carnot,entropy,engine,thermodynamics,isothermal,process
        !          1970: temperatures,survive,characteristic,grows,traits,lifetime,offspring,organisms,characteristics
        !          1971: 
        !          1972: charge,charging,friction
        !          1973: 
        !          1974: angle,field,charge,permittivity,force,efield,electric,direction,vector,charges,medium
        !          1975: compute,field,work,computations,speed,lines,applet,computer
        !          1976: coulombs,field,net,charge,permittivity,force,gauss,flow,electrostatics,direction,flux,medium
        !          1977: coulombs,field,equivalent,pe,permittivity,electric,magnitude,vector,flux,medium
        !          1978: coulombs,capacitance,charge,microfarads,voltage,flows,uncharged,volts,battery,capacitor
        !          1979: capacitance,parallel,plate,plates,area,capacity,capacitor
        !          1980: energy,capacitance,charge,charged,capacitor,microcoulomb
        !          1981: gap,plate,plates,voltage,volts,dielectric,capacitor
        !          1982: gap,energy,capacitance,field,parallel,disks,electric,charged,battery,capacitor
        !          1983: capacitors,capacitance,series
        !          1984: capacitors,capacitance,parallel,capacitances
        !          1985: series,capacitors,capacitance,parallel,capacitor
        !          1986: 
        !          1987: 
        !          1988: conduct,charge,semiconductors,electricity,conductors,electrons,conduction,electric,discharge,charged,conductor,insulators,insulator,conductivity,electronics,resistance,discharged
        !          1989: coulombs,charge,coulomb,permittivity,force,electrostatics,isolated,electron
        !          1990: field,charge,parallel,gauss,electric,direction,vectors,vector,fluxes,area,law,perpendicular,flux
        !          1991: repulsion,field,charge,inducing,diverging,metallic,electrostatic,shielded,generator,franklins,conducting,metal,shielding,gauss,electrons,gaussian,electric,tall,induced,magnitude,insulating,de,induces,charged,conductor,law,electroscope,uncharged,surface,flux,faraday,divergence
        !          1992: field,charge,metallic,permittivity,force,metal,gauss,gaussian,electric,conductor,charges,flux
        !          1993: field,charge,metal,gauss,electrostatics,electric,sphere,density
        !          1994: repelled,energy,repulsion,field,work,pe,electrostatic,force,electric,potential,displacement
        !          1995: energy,charge,potential
        !          1996: energy,field,charge,work,force,electrical,electric,charges,potential
        !          1997: energy,field,charge,work,force,accelerate,kinetic,constant,potential
        !          1998: electric,conductor,energy,field,volt,charge,coulomb,energies,work,electronvolt,potential,electrostatic,force,electron
        !          1999: energy,proton,atom,hydrogen,position,potential,electron,nucleus
        !          2000: superposition,charge,coulomb,energies,electrostatic,permittivity,electric,charges,potential,scalar
        !          2001: charges,potentials,energy,charge,positions,potential
        !          2002: line,energy,surfaces,field,charge,radial,work,electrostatic,force,lines,radius,electric,equipotential,concentric,acceleration,equipotentials,charges,perpendicular,surface,potential,circles
        !          2003: leakage,clouds,field,charge,fields,ions,force,lines,lightning,conductors,electrons,neutralizes,flow,electric,equipotential,charged,conductor,atmosphere,charges,friction,insulator,dielectric,air,ionization,potential,cloud,electron
        !          2004: surfaces,field,charge,gravitational,work,gravity,electric,dipole,equipotential,equipotentials,perpendicular,surface,potential,uniform
        !          2005: electrostatics
        !          2006: field,charge,electrostatic,plot,applet,charges,potentials,potential
        !          2007: energy,field,charge,work,electrostatic,force,gauss,electric,charged,charges,er,surface,potential
        !          2008: tubes,picture,video,beam,electron
        !          2009: tubes,picture,plates,deflection,tv,video,beam,electron
        !          2010: hair,charge,charging,generator,video,friction
        !          2011: repelled,charge,conducting,metal,shielding,charged,video,insulator,graaff,van
        !          2012: faradays,generator,gauss,lightning,voltage,sparks,video,graaff,van
        !          2013: charge,recoil,generator,electric,sparks,discharge,conductor,graaff,van
        !          2014: momentum,charge,recoil,generator,electric,sparks,discharge,conductor,video,graaff,van
        !          2015: capacitance,charge,permittivity,conducting,spherical,radius,conductor,sphere,isolated,surface,potential
        !          2016: capacitance,grounded,charge,infinity,permittivity,concentric
        !          2017: capacitors
        !          2018: capacitors,dielectrics,energy,capacitance,charge,permittivity,charged,dielectric,battery,potential,capacitor
        !          2019: capacitors,energy,capacitance,coulomb,capacitiance,farad,sphere,volt,stored,dielectric,capacitor,spheres
        !          2020: 
        !          2021: mendels,mendel,genetics,inheritance,genetic
        !          2022: genetics,inheritance,pangenesis,darwin,hereditary
        !          2023: mendel,inheritence,genetics,inheritance,genetic,gregor
        !          2024: mendel,inheritence,genetics,inheritance,gene,genetic,gregor
        !          2025: alleles,mendel,loci,mendels,allele,pea,genetics,inheritance,gene,chromosome,genetic,gregor
        !          2026: chromatids,chromosome,dyad,gregor,haploid,inheritance,inheritence,meiosis,mendel,sister
        !          2027: mendel,haploid,diploid,genetics,meiosis,gene,genetic,gregor
        !          2028: anaphase,chromosome,chromosomes,gregor,haploid,homologs,inheritance,meiosis,mendel,metaphase,phase,prophase,telophase
        !          2029: chromosome,gregor,meiosis,mendel,segregation
        !          2030: allele,genetic,genetics,gregor,mendel,punnett,square
        !          2031: testcross,genetics,mendel,square,genetic,gregor,cross,punnette,test
        !          2032: genetics,mendel,meiosis,genetic,gregor
        !          2033: 
        !          2034: 
        !          2035: forces,force,vector
        !          2036: integral,integration,integrals,functions,derivative,calculus
        !          2037: parallel,resistors,voltage,resistances,potential,resistance
        !          2038: galvanometer,currents,circuits
        !          2039: km,unit,prefix,dimension,meters,cm,centimeters,units
        !          2040: nuclear,physics
        !          2041: element,masses,energy,fermi,protons,proton,neutron,femtometer,einsteins,radii,nuclei,ro,atom,stable,nucleons,mass,isotones,atomic,neutrons,isotopes,nucleus
        !          2042: forces,energy,protons,electromagnetic,interact,force,nucleon,nucleons,nuclear,neutrons,particle,particles,weight,binding,nucleus
        !          2043: masses,saturation,protons,carbon,repulsion,proton,neutron,neutral,excess,force,nuclei,atom,nucleon,hydrogen,mass,fission,nuclear,neutrons,electrically,stability,electron,nucleus
        !          2044: photons,momentum,beta,emission,nuclei,penetrating,electrons,spontaneously,penetrate,penetration,radiation,nucleon,alpha,radioactivity,particles,helium,exponentially,emitted,rays,gamma,decay
        !          2045: nuclei,life,half,isotope,mean
        !          2046: nuclei,source,activity,life,decays,half,curies
        !          2047: bones,diagnostic,protons,blood,human,stable,patient,emits,halflife,solution,injected,gamma,decay,photons,energy,decays,gammaray,picture,body,technetium,photon,neutrons,camera,patients,image,isotope
        !          2048: neutrinos,halflives,nuclei,particle,emitted,gamma,decay,photons,beta,decays,sources,atoms,electrons,alpha,nuclear,neutrons,particles,isotopes,radioactive,rays
        !          2049: thermal,atom,temperatures,mev,bethe,hydrogen,flare,energy,protons,reactions,nuclear,energies,fusion,photon,proton,neutron,reactor,positron,solar,nasa,deuteron,helium,electron,nuclei,isotope,radioactive,stars,neutrino,binding
        !          2050: star,uranium,energy,fusion,dwarf,expansion,bang,neutron,cosmological,expanding,white,galaxies,cosmology,lines,nuclei,supernova,stars,furnaces,hubble,hydrogen,spectral,planet,nuclear,wave,light,redshift,observations,astronomical,iron,helium,explosion
        !          2051: becquerel,proton,activity,life,mass,atomic,decay,half,neutron,mean
        !          2052: nucleus,radius,nucleons
        !          2053: positive,protons,charge,electrostatic,negatively,electrons,conduction,electric,charged,conductor,static,negative,uncharged,positively,electrically,electron
        !          2054: charge,proton
        !          2055: micro,pico,hecto,centi,mega,tera,deca,yocto,zepto,deci,nano,yotta,giga,peta,kilo,milli,atto,zetta,femto
        !          2056: magnetism
        !          2057: field,charge,fields,vectors,vector,charges,magnetic,lorentz
        !          2058: field,charge,charged,magnetic,lorentz
        !          2059: vectors,components,acceleration,vector,component,velocity
        !          2060: energy,work,kinetic
        !          2061: work,force,displacement
        !          2062: kg,work,gravity,force,kinematics,mass,displacement
        !          2063: equilibrium,forces,energy,stretched,compress,force,stretching,compressed,compresses,acceleration,compressing,spring,velocity
        !          2064: oscillation,acceleration,harmonic,displacement
        !          2065: energy,superconducting,inductor,inductance,solenoid
        !          2066: angle,force,electrons,magnitude,magnetic,lorentz,electron,velocity
        !          2067: field,charge,force,magnitude,lorenz,lorentz,electron,velocity
        !          2068: trajectory,field,ions,force,mass,centrifugal,lorentz,electron
        !          2069: field,magnetic
        !          2070: currents,force
        !          2071: toroids,field,toroid,solenoids,magnetic,solenoid,toroidal
        !          2072: torques,ma,moment,magnetic,coil
        !          2073: torques,field,moment,torque,moments
        !          2074: field,magnitudes,work,wire,flow,vectors,magnetic
        !          2075: magnet,needle,compass,deflect,aligned,needles,magnets,magnetic
        !          2076: circular,orbit,video,particle,beam,electron
        !          2077: orbit,video,magnetic,particle,beam,electron
        !          2078: magnet,field,compass,video,magnetic
        !          2079: ki,sliding,energy,work,techniques,dynamics,kinematics,coefficient,friction,slides
        !          2080: equilibrium,energy,length,store,height,work,gravity,joule,position,spring,potential,displacement
        !          2081: heat,momentum,energy,conserved,baryon,conservation,thermodynamics
        !          2082: heat,forces,energy,conservative,work,force,nonconservative,applet,friction,conservation
        !          2083: telescope,microscope,prescription,lens,optical,magnification
        !          2084: forces,energy,energies,conservative,gravity,mechanical,kinetic,conservation,potential
        !          2085: particle,physics,elementary
        !          2086: strongnuclear,electromagnetic,quarks,gravitational,proton,interact,interactions,nuclei,atom,hadrons,color,leptons,nucleus,chromodynamics,neutron,atoms,force,qcd,elementary,strong,nucleons,gravitation,weak,quantum,lepton,electron
        !          2087: neutrinos,forces,electromagnetic,gravitational,mass,muon,neutrino,masses,force,weak,electron
        !          2088: relativity
        !          2089: joules,energy,pounder,grams,burger
        !          2090: 
        !          2091: 
        !          2092: 
        !          2093: 
        !          2094: 
        !          2095: 
        !          2096: 
        !          2097: 
        !          2098: 
        !          2099: 
        !          2100: 
        !          2101: lab
        !          2102: origins,theory,quantum
        !          2103: photoelectric,photocurrent,wavelength,wavelengths,applet,cesium
        !          2104: orientation,polarization,polarizers,photometer,applet,polarimeters,polarizer,optical,rays
        !          2105: break,down,fermentation,glucose,glycolysis,pi,respiration
        !          2106: phosphates,excercise,glycolysis,respiration
        !          2107: alcohol,anaerobic,co,fermentation,glycolysis,nad,nadh,pyruvate,respiration
        !          2108: motion,forces,newtons,body,force,directions,direction,vectors,components,acceleration,vector,freebody,law
        !          2109: motion,force,newtonian,acceleration,mass,newton
        !          2110: vectors,subtraction
        !          2111: 
        !          2112: velocity,graph
        !          2113: acceleration,graph
        !          2114: vectors
        !          2115: 
        !          2116: 
        !          2117: trajectory
        !          2118: velocity
        !          2119: position,vector
        !          2120: 
        !          2121: 
        !          2122: velocity,components
        !          2123: resultant,vector
        !          2124: vector,addition
        !          2125: 
        !          2126: 
        !          2127: vector,addition
        !          2128: 
        !          2129: trajectory
        !          2130: gravity,diagram,diagrams,balanced,freebody,unbalanced,weight
        !          2131: forces,net,force,vectors,vector
        !          2132: forces,distance,net,gravity,electrostatic,force,act,attraction
        !          2133: motion,forces,newtons,force,galileo,inertia,mass,law,friction,newton,velocity
        !          2134: forces,newtons,force,velocity
        !          2135: forces,force,vectors,components,vector,component
        !          2136: net,newtons,force,accelerate,direction,acceleration,mass,netforce
        !          2137: kg,force,si,acceleration,dimensional,newton,dimensionality,weigh,weight,velocity
        !          2138: 
        !          2139: hydraulic,force,fluids,buoyant
        !          2140: 
        !          2141: 
        !          2142: 
        !          2143: 
        !          2144: 
        !          2145: 
        !          2146: 
        !          2147: megaton,kg,gal,energy,unit,length,lightyear,kmh,force,pressure,atm,cm,cal,btu,ev,power,ft,mpa,volume,conversion,hp,kwh,velocity,units
        !          2148: powers,power
        !          2149: speed,temperature,force,mileshour,displacement,velocity
        !          2150: magnitude,vectors,vector,crossproduct,perpendicular,scalar
        !          2151: products,orthonormal,unit,length,coordinate,vectors,vector,cartesian,orthogonal,scalar
        !          2152: impurities,forces,electricity,force,electrons,electric,insulators,dielectric
        !          2153: polynomial,logarithm,chain,exponential,derivative,calculus
        !          2154: circle,cylinder,height,geometry,radius,circumference,area,sphere,rectangle,volume,surface,square,sides
        !          2155: length,applet,area,scalar,skalarprodukt,projection
        !          2156: angle,vectors,vector,vektorprodukt
        !          2157: ionic,molecule,atom,hydrogen,element,chemical,compound,covalent,bond
        !          2158: charge,molecule,electrons,atom
        !          2159: element,atom,polar,gains,positive,shared,unequal,negative,charge,molecule,amount,molecules,electron,water,electrons
        !          2160: 
        !          2161: submerged,newtons,tension,convert,displaces,density,liquid,units
        !          2162: graphs,graph
        !          2163: bumper,gravity,pasco,accelerate,acceleration,cart,friction
        !          2164: friction,velocity
        !          2165: acceleration,friction,ramp,force,coefficient,weight
        !          2166: acceleration,mass,law,hookes,gravity,force,spring,harmonic,frequency
        !          2167: period,spring,oscillates,frequency
        !          2168: tension,wave,harmonic,frequency
        !          2169: kinetic,coefficient,friction,gravity,force
        !          2170: kinetic,energy,potential
        !          2171: kinetic,energy
        !          2172: gravity,acceleration,resistance,velocity,terminal,falling
        !          2173: air,resistance,velocity,terminal
        !          2174: carts,coefficient,cart,friction,inelastic,collision
        !          2175: carts,speed,collide,velocities,cart,collision,velocity
        !          2176: tension,string,pendulum
        !          2177: string,pendulum
        !          2178: angular,force,rotational,inertia,centripetal,velocity
        !          2179: moment,inertia,rotates,rotating
        !          2180: ice,temperature,water
        !          2181: joules,energy,calorie
        !          2182: submerged,force,weight,buoyant
        !          2183: masses,kg,acceleration,mass,pulley,atwood
        !          2184: deviation,measured,estimates,measure,accuracy,error,standard,analysis,measurement,measurements,variance,mean
        !          2185: addition,approximation,error,additions
        !          2186: average,velocity
        !          2187: distance
        !          2188: average,speed
        !          2189: acceleration,average
        !          2190: speed,vectors,orthogonal
        !          2191: velocity,relative
        !          2192: acceleration,velocity
        !          2193: projectile,velocity
        !          2194: motion,angle,projectile,cannon,velocity
        !          2195: angle,balls,baseball,projectile,velocity
        !          2196: maximum,range,velocity
        !          2197: angle,vector
        !          2198: trigonometry,angle,degrees,vectors,vector,velocity
        !          2199: vectors,vector,angle,angles
        !          2200: charge,coulomb,field,force,electric
        !          2201: field,electric
        !          2202: forces,distance,field,charge,fields,electric,vector,charges
        !          2203: electric,charged,sphere,field,charge
        !          2204: folded,field,electric,panels,flux,uniform,panel
        !          2205: field,charge,coulomb,force,electric,charges,potentials,potential,microcoulomb
        !          2206: scalars,charges,potentials,potential
        !          2207: electric,energy,field,charge,work
        !          2208: energy,field,charge,work,accelerating,electric,vector,displacement
        !          2209: approximate,angle,slit,interference
        !          2210: monochromatic,wavelength,reflection,refraction,reflected,transmitted,thickness,beam
        !          2211: incident,rotated,polarization,polarizers,light,polarized,polarizer,intensity
        !          2212: slit,minimum,maximum,diffraction,light,width,single
        !          2213: aperture,circular,minimum,angle,line,distance,length,wavelength,linear,vertex,diameter,vertices
        !          2214: photosystem,photosynthesis
        !          2215: cycle,glycolysis,krebs,pyruvate,respiration
        !          2216: acetyl,acetylcoa,co,coa,cycle,glycolysis,krebs,pyruvate,respir,respiration
        !          2217: acetyl,coa,cycle,krebs,respiration
        !          2218: co,cycle,fad,fadh,gylcolysis,krebs,nad,nadh,respir,respiration
        !          2219: capacitance,parallel,plate,plates,dielectric,capacitor
        !          2220: capacitors,energy,capacitance,charge,series,voltage,volts,battery,capacitor
        !          2221: chain,cycle,electron,fad,fadh,glycolysis,krebs,nad,nadh,respiration,transport
        !          2222: cycle,glycolysis,krebs,respiration
        !          2223: forces,gravity,newtons,force,tension,vector,law,laws,inclined,plane,incline,weight,velocity,terminal
        !          2224: forces,object,diagram,force,frictionless,tension,objects,direction,acceleration,component,freebody,mass,friction,massless
        !          2225: applet,pulley,inclined,plane
        !          2226: static,kinetic,aristotle,kinematics,frictional,forces,kinetic,static,friction,force,resistance,rolling
        !          2227: cellular,chain,electron,ion,man,mitochondrion,respiration,transport
        !          2228: animation,chain,electron,respir,respiration,transport
        !          2229: chain,electron,glycolysis,respiration,transport
        !          2230: acetyl,aerobic,anaerobic,cellular,chain,coa,cycle,electron,fermentation,glycolysis,krebs,respiration,transport
        !          2231: aerobic,anaerobic,chain,co,cycle,electron,fermentation,glycolysis,krebs,respiration,transport
        !          2232: cellular,chain,chemiosmosis,electron,gradient,proton,respiration,transport
        !          2233: cellular,chain,chemical,chemiosmosis,electro,electrochemical,electron,gradient,respiration,transport
        !          2234: atp,cellular,chemiosmosis,electrochemical,gradient,membrane,pi,potential,respiration
        !          2235: cellular,chemiosmosis,chloroplast,mitochondrion,respiration
        !          2236: Slding,block
        !          2237: 
        !          2238: trigonometry,ma,ms,diagram,body,frictionless,diagrams,trig,free,acceleration,mass,pulley,inclined,massless,plane
        !          2239: forces,directions,tension,direction,statics
        !          2240: kg,ma,newtons,tension,acceleration,mass
        !          2241: kg,forces,ma,newtons,force,accelerate,acceleration,mass,coefficient,friction
        !          2242: forces,newtons,satellite,force,xcomponent
        !          2243: gravity,force,air,resistance,weight,velocity,terminal
        !          2244: forces,angle,force,accelerating,constant,velocity
        !          2245: masses,kg,gravity,force,machine,friction,pulley,velocity
        !          2246: capacitance,charge,conducting,potential
        !          2247: capacitors,shape,coulombs,affecting,capacitance,grounded,field,charge,size,permittivity,force,conductors,factor,conductor,charges,sphere,dielectric,battery,potential,capacitor,proximity,medium
        !          2248: capacitors,capacitance,plate,permittivity,gauss,plates,gaussian,vectors,charged,conductor,charges,law,dielectric,capacitor,flux
        !          2249: capacitors,capacitance,parallel,plate,capacitances,capacitor
        !          2250: thundercloud,field,charge,parallel,plate,voltage,area,separation,capacity,potential,capacitor,cloud
        !          2251: capacitance,permittivity,conducting,force,spherical,concentric,conductor,sphere,potential,spheres
        !          2252: capacitance,conducting,formula,farad,surface,capacity
        !          2253: capacitors,capacitance,parallel,equivalent,electricity,circuits,circuit,series,voltage,electronic,battery,potential,capacitor,batteries
        !          2254: capacitors,connected,capacitance,charge,series,capacitor
        !          2255: capacitors,capacitance,equivalent,series
        !          2256: capacitors,capacitance,parallel,equivalent,plates,potential,capacitor
        !          2257: capacitors,connected,capacitance,parallel,capacitances
        !          2258: capacitors,capacitance,parallel,equivalent,series,applet,capacitances
        !          2259: capacitors,capacitance,circuits,circuit,voltage,conductor,isolated,battery,electrically,potential
        !          2260: energy,capacitance,generator,voltage,potential,graaf,van
        !          2261: insulating,conductor,capacitance,electroscope,charge,work,potential,conductors,sharing
        !          2262: polar,coulombs,dielectrics,positive,capacitance,dipoles,polarization,field,inducing,coulomb,molecule,neutral,molecules,force,electrons,electrical,nonpolar,electric,induced,dipole,direction,conductor,charges,negative,insulator,dielectric,potential,capacitor
        !          2263: heat,energy
        !          2264: 
        !          2265: 
        !          2266: 
        !          2267: charges,charge,coulomb,ampere,electrons,flow,electrical
        !          2268: electric,thermal,scattering,drifting,drift,heat,impurities,conductor,dissipation,energy,velocities,field,charge,imperfections,flows,battery,vibrations,potential,ions,atoms,temperature,force,resistance,electron,conductors,velocity,electrons,conduction,electrical,terminal
        !          2269: electric,drift,charges,electron,velocity,electrons
        !          2270: voltage,ohm,ohms,semiconductor,conductor,volt,resistance
        !          2271: code,color,band,resistances,coding,resistance,colors,numbers,resistors,resistor,tolerance,ohm
        !          2272: resistivity,charge,conductors,conductivity,resistance
        !          2273: resistivity,capacitance,plate,permittivity,plates,voltage,area,capacitor,resistance
        !          2274: resistivity,dependence,temperature,resistance
        !          2275: dissipation,energy,charge,circuits,circuit,watthour,circuitry,dissipated,ohms,charges,watt,power,potential,resistance,resistor
        !          2276: currents,equivalent,circuits,circuit,series,resistors,ri,rs,resistances,resistance,resistor
        !          2277: resistances,potentiometer,potential,resistance,circuit,series,resistors
        !          2278: parallel,currents,equivalent,potential,circuits,resistance,circuit,resistors,resistor
        !          2279: electrodes,electrolyte,terminals,emf,positive,charges,dissipation,energy,negative,chemical,ion,reactions,charge,electromotive,electrode,battery,potential,ions,permittivity,resistance,circuit,electron,electrons,voltage,electrical,terminal,batteries
        !          2280: erect,virtual,object,mirror,radius,light,convex,image,magnification
        !          2281: length,mirror,focal,ray,converging,inverted,lens,lenses,image
        !          2282: transistors,junction,charge,currents,circuits,circuit,series,resistors,voltage,ri,kirchhoff,potentials,kirchhoffs,power,conservation,potential,resistance,loop,batteries
        !          2283: junction,currents,voltage,flow,terminals,kirchhoffs,rule,flows,battery,potential,resistance,rules,loop,resistor,terminal,batteries
        !          2284: junction,parallel,loops,series,resistors,kirchhoff,junctions,kirchhoffs,loop,batteries
        !          2285: capacitors,charge,circuits,circuit,resistors,rc,rccircuits,kirchhoffs,capacitor,resistor
        !          2286: ammeters,currents,circuit,resistors,voltage,rc,rs,ammeter,resistance,resistor
        !          2287: voltmeter,currents,voltages,circuits,circuit,voltage,galvanometer,resistance,resistor
        !          2288: voltage,galvanometer,ammeter,resistance
        !          2289: ohms,resistance,voltage
        !          2290: series,resistors,voltage,conduction,battery,resistance,resistor
        !          2291: currents
        !          2292: drift,number,charge,electron,velocity
        !          2293: resistivity,spool,copper,wire,resistance
        !          2294: circuit,volts,resistance,ir,resistor
        !          2295: circuit,voltage,ohms,volts,drop,resistance,resistor
        !          2296: dissipated,ohms,dissipation,power,volts,cicuit,circuit,voltage,resistor
        !          2297: equivalent,circuit,resistors,ohms,resistance
        !          2298: resistors,voltage,wire,bulb,light,bulbs,battery,resistance
        !          2299: dissipated,dissipation,power,circuit,resistors,voltage,resistor
        !          2300: kirchhoff,currents,potential,loops,circuit,voltage,ohm
        !          2301: current,circuits,circuit,volt,resitors,resistances,potential,resistance
        !          2302: electricity,hint,voltage,cost,power,solution,costs
        !          2303: voltmeters,voltmeter,series,resistors,voltage,ohm,ohms,galvanometer,volts,resistance,resistor
        !          2304: circuit,series,voltage,ohms,age,volts,battery,resistance,resistor
        !          2305: coulombs,forces,charge,coulomb,newtons,electrostatic,force,attraction,charges,negative,law,attractive
        !          2306: force,magnitude,vectors,vector,charges
        !          2307: distance,charge,force,electric
        !          2308: velocity
        !          2309: 
        !          2310: 
        !          2311: 
        !          2312: power
        !          2313: power
        !          2314: time
        !          2315: kg,lb,energy,horsepower,work,speed,accelerate,accelerating,mass,power,friction,lbs,hp
        !          2316: energy,gravitational,work,efficiency,kinetic,power,conservation,potential,summary
        !          2317: kg,angle,energy,height,work,gravity,mass,potential
        !          2318: energy,work,watt,mass,power,accelerates,hp,resistance,velocity
        !          2319: schleiden,virchow,schwann,theodor,cell,rudolph,matthias
        !          2320: hairlike,movement,proteins,structures,prokaryotes,cell,walls,whiplike,plant
        !          2321: cube,ratio,area,volume,surface,calculate
        !          2322: volume,calculate
        !          2323: areatovolume,ratio,area,volume,surface,calculate
        !          2324: areatovolume,cube,length,ratio,side,surface
        !          2325: areatovolume,cell,shapes
        !          2326: cell,complex,prokaryote,eukaryote
        !          2327: flagella,cells,bacteria,structure
        !          2328: dna,compartments,circular,cells,cell,nucleus
        !          2329: 
        !          2330: 
        !          2331: potential,energy
        !          2332: distance,average
        !          2333: accelerate,acceleration
        !          2334: acceleration
        !          2335: angle,projectile,horizontal
        !          2336: degrees
        !          2337: coefficient,friction
        !          2338: acceleration,friction
        !          2339: force,block,accelerates
        !          2340: kg,newtons,inserting,acceleration,practice
        !          2341: average,practice,exam
        !          2342: magnitude,average,velocity
        !          2343: seconds,acceleration,average,truck
        !          2344: acceleration,average
        !          2345: acceleration,practice
        !          2346: acceleration
        !          2347: ball,velocity
        !          2348: practice,exam
        !          2349: fish,elevator,downward,decreasing,weight
        !          2350: force,magnitude,acceleration,decreasing,practice,velocity
        !          2351: block,respectively,static,coefficient
        !          2352: forces,force,block,static
        !          2353: angle,force,practice,external
        !          2354: forces,gravity,force,block,component,friction,incline,velocity
        !          2355: bullet,heavier,bullets
        !          2356: bullets,practice
        !          2357: book,gravity,air,velocity
        !          2358: gravitational,against,potential
        !          2359: energy,car,kinetic
        !          2360: car,kinetic,practice,exam
        !          2361: ball,angle,energy,building,degrees,kinetic
        !          2362: angle,energy,practice,exam
        !          2363: kg,joules,angle,energy,degrees,block,friction,constant,slides,incline
        !          2364: energy,kinetic,potential
        !          2365: angle,boat,river
        !          2366: boat
        !          2367: angle,ceiling,tension,wire,wires
        !          2368: equilibrium,net,force,component
        !          2369: acceleration,machine,friction,string,pulley,atwood
        !          2370: block,exam
        !          2371: flying,angle,shot,arrow
        !          2372: flying,arrow
        !          2373: exam
        !          2374: practice,exam
        !          2375: chapters,practice,exam
        !          2376: stronger,attract,charged,charges,particles,practice
        !          2377: attract,charged,charges,particles,practice
        !          2378: field,electric
        !          2379: field,charge,fields,charges,cancel
        !          2380: field,electric,approximately
        !          2381: center,ball,field,charge,acting,electrostatic,force,electric,charged,practice,exam
        !          2382: charge,work
        !          2383: energy,work,accelerate,attraction,kinetic,negative,attracted,potential
        !          2384: field,charge,conducting,electric,sphere
        !          2385: field,charge,balance,force,electric,induced,conductor
        !          2386: plate,voltage,charged,negative,capacitor
        !          2387: positive,charge,plate,voltage,negative,capacitor
        !          2388: capacitance,capacitor
        !          2389: capacitance,plates,capacitor
        !          2390: circuit,capacitor
        !          2391: capacitors,capacitance,parallel,circuit,series,capacitor
        !          2392: gap,plates,voltage,dielectric,air,capacitor
        !          2393: gap,plates,voltage,charged,charges,dielectric,air,capacitor
        !          2394: voltage,resistor
        !          2395: circuit,series,voltage,resistor
        !          2396: circuit
        !          2397: junction,circuit,kirchhoffs
        !          2398: voltage,dissipated,power,resistance,resistor
        !          2399: appropriate,voltage,dissipated,resistance,resistor
        !          2400: resistivity,parallel,diameter,wire,resistance
        !          2401: parallel,resistance
        !          2402: field,voltage,magnetic,coil
        !          2403: field,voltage,area,magnetic,coil
        !          2404: field,force,magnetic
        !          2405: force,conductor,magnetic
        !          2406: field,currents,magnetic
        !          2407: currents,conductor,magnetic
        !          2408: screen,deflected,magnetic,computer,electron
        !          2409: deflection,deflected,magnetic,electron,velocity
        !          2410: field,solenoids,solenoid
        !          2411: toroids,core,solenoids,solenoid
        !          2412: circuit
        !          2413: circuit,selfinductance,battery
        !          2414: 
        !          2415: 
        !          2416: tension,block
        !          2417: 
        !          2418: angle,inertia,mass,inclined,practice,plane,rolling,disk
        !          2419: tranlational,rotational,kinetic,inertia,mass,potential,disk,velocity
        !          2420: forces,exert,pistons
        !          2421: pressure
        !          2422: submerged,gravity,float,sink,floats,specific,volume,liquid
        !          2423: force,displaced,liquid,buoyant
        !          2424: gases,ideal,molecules,temperature,pressure,average,mass,volume,momenta
        !          2425: gas,gases,ideal,law
        !          2426: angular,acceleration,centripetal,practice,velocity
        !          2427: acceleration
        !          2428: angular,radius,circular,race,acceleration
        !          2429: acceleration,velocity
        !          2430: energy,gun,bullet,fires,kinetic,conserved
        !          2431: gun,bullet,ineleastic,conserved,firing,collision,recoils
        !          2432: ball,bounced,kinetic
        !          2433: energy,fraction,kinetic
        !          2434: energy,gravitational,kinetic,potential
        !          2435: energy,gravitational,kinetic
        !          2436: spherical,planet,surface
        !          2437: gravitational,force,weight
        !          2438: submerged,gravity,suspended,container,specific
        !          2439: acting,force,buoyant
        !          2440: 
        !          2441: 
        !          2442: heat,equilibrium,temperature,ice,fridge,mixture,specific,softdrink
        !          2443: heat,temperature,mixture,melt,softdrink
        !          2444: skater,counterclockwise,ice,clockwise,inertia,piruette
        !          2445: inertia,mass,rotation
        !          2446: skater,length,ice,skaters,mass,separation
        !          2447: momentum,moment,inertia
        !          2448: probe,shot,earth,velocity
        !          2449: energy,kinetic,conservation,potential
        !          2450: masses,acceleration,machine,mass,pulley,atwood,disk
        !          2451: moment,acceleration,inertia
        !          2452: practice,exam
        !          2453: voltage,dissipated,power,resistor
        !          2454: voltage,dissipated,power,resistor
        !          2455: 
        !          2456: circuit,capacitor
        !          2457: circuit,frequency
        !          2458: resonant,resonance,circuits,circuit,impedance
        !          2459: energy,voltage,transformer,friction,secondary,primary,coil
        !          2460: energy,circuit,voltage,transformers,transformer,windings,friction,secondary,primary,coil,winding,resistance
        !          2461: wavelength,refraction,practice,frequency
        !          2462: wavelength,refraction,hz,frequency
        !          2463: electromagnetic,field,wavelength,fields,electric,vector,color,magnetic,wave
        !          2464: energy,electromagnetic,field,wavelength,fields,color,magnetic,wave,spectrum
        !          2465: angle,light
        !          2466: snells,law
        !          2467: mirror,inverted,concave,curvature
        !          2468: mirror,concave,curvature
        !          2469: length,focal,lens
        !          2470: length,converging
        !          2471: lens
        !          2472: eyes,eye,diopters,lens,focus
        !          2473: refractive,disulfide,glass
        !          2474: lensmaker,lens,lenses,air,convex,disulfide,glass
        !          2475: length,telescope,mirror,concave,lens,convex,image
        !          2476: length,telescope,eye,mirror,focal,objective,eyepiece,lens,focussed,image,magnification
        !          2477: length,eye,focal,converging,magnifying,lens,image,magnification,glass
        !          2478: length,eye,focal,magnifying,lens,magnification
        !          2479: field,electric,laser,beam
        !          2480: energy,field,electric,laser,sunlight,light,intensity
        !          2481: polarizers,unpolarized,light,polarized
        !          2482: transmission,polarization,polarizers,axes,linearly,unpolarized,electric,axis,light,polarized,polarizer,intensity
        !          2483: experiment,maxima,light,interference,frequency
        !          2484: maxima,slit,separation,frequency
        !          2485: thin,reflection,refraction,lens,thickness,film,coating
        !          2486: wavelength,refracting,reflection,refraction,lens,refractive,glass
        !          2487: diffraction,slits,wavelength,grating,separation
        !          2488: diffraction,slits,wavelength,angles,screen,grating,separation
        !          2489: 
        !          2490: masses,frictionless,atwoods,acceleration,machine,mass,string,massless
        !          2491: acceleration
        !          2492: snow,kinetic,coefficient,friction,skier
        !          2493: acceleration
        !          2494: energy,frictionless,spring,displacement
        !          2495: energy,spring
        !          2496: ball,building
        !          2497: energy,velocity
        !          2498: energy,gravitational,heights,potential
        !          2499: gravitational,conservative,gravity,force,potential
        !          2500: masslesss,acceleration,mass,rotating,string,pulley,disk
        !          2501: acceleration
        !          2502: sliding,angle,mass,linear,friction,practice,spheres,plane,rolling
        !          2503: sliding,energy,rotational,sphere,kinetic,potential,rolling
        !          2504: diskshaped,rolls,pizza,pepperoni,spins,dough,mushroom
        !          2505: 
        !          2506: fundamental,vibrate,wave,string,harmonic
        !          2507: antinodes,harmonic
        !          2508: frictionless,spring,slides
        !          2509: maximum,mass,displacement
        !          2510: pendulum,string,oscillations
        !          2511: oscillations
        !          2512: harmonic,velocity
        !          2513: displacement,derivative
        !          2514: 
        !          2515: 
        !          2516: trajectory,speed,acceleration,parabolic
        !          2517: acceleration,velocity
        !          2518: ball,balls
        !          2519: 
        !          2520: heated,temperature,force,fractional
        !          2521: 
        !          2522: gravity,water,specific
        !          2523: ratio
        !          2524: equilibrium,molecule,vapor,water
        !          2525: 
        !          2526: gas,ideal,temperature,pressure,volume
        !          2527: 
        !          2528: sounds,decibel,intensities,sound,levels
        !          2529: 
        !          2530: speed,airplane,sound,hz,airport,frequency
        !          2531: 
        !          2532: speed,sound,hz,beat,frequency
        !          2533: wavelength,beat,frequency
        !          2534: ball,impulse,force,baseball,impact,collision
        !          2535: impulse,force
        !          2536: ball,cannonball,balls,collide,golf,collision
        !          2537: eleastic,ball,cannonball,balls,velocities,collision,velocity,recoils
        !          2538: ballistic,bullet,inelastic,collision,velocity
        !          2539: energy,converted,kinetic,potential,inelastic,collision
        !          2540: period,orbital,orbiting
        !          2541: period,law,keplers
        !          2542: gravity,orbit,spaceship
        !          2543: gravitational,gravity,spaceship
        !          2544: equilibrium,ice,melt
        !          2545: equilibrium,melting
        !          2546: gas,isobaric,law,thermodynamics
        !          2547: gas,heat,isobaric,work,ideal,temperature,pressure,volume,potential
        !          2548: 
        !          2549: capacitors,photons,ionized,maximum,diffraction,slits,momentum,energy,capacitance,decays,maxima,length,field,charge,polarizers,orbital,wavelength,half,proton,plate,eyes,photo,diopters,focal,reflection,refraction,force,circuit,plates,ray,grating,unpolarized,voltage,balmer,flow,deuterons,dissipated,electric,reflected,atom,laser,slit,charges,life,kinetic,bohr,lens,focus,broglie,magnetic,inductor,wave,photon,light,atomic,particle,dielectric,particles,potential,capacitor,hz,film,electron,radioactive,frequency,uncertainty,resistor,rays,nucleus,coating
        !          2550: 
        !          2551: capacitors,momentum,energy,capacitance,length,charge,wavelength,half,emission,photo,focal,reflection,refraction,force,grating,unpolarized,electrons,voltage,balmer,flow,deuterons,electric,laser,charges,kinetic,bohr,lens,focus,broglie,power,wave,photon,potential,capacitor,film,electron,emitted,frequency,uncertainty
        !          2552: voltage,power,resistor
        !          2553: 
        !          2554: 
        !          2555: 
        !          2556: 
        !          2557: 
        !          2558: 
        !          2559: 
        !          2560: energy,heisenbergs,atoms,atomic,quantization,plancks,uncertainty
        !          2561: 
        !          2562: frequency
        !          2563: 
        !          2564: wavelength,speed,de,broglie
        !          2565: 
        !          2566: temperature,body,radiation,black,spectrum
        !          2567: 
        !          2568: 
        !          2569: state,hydrogen,bohr,quantum
        !          2570: 
        !          2571: heat,temperature
        !          2572: atomic,binding,nucleus
        !          2573: 
        !          2574: 
        !          2575: wavelength,scattered,xrays
        !          2576: scattering,compton
        !          2577: half,activity,life
        !          2578: number,probabilty,decaying,avagadros,decay
        !          2579: decays,alpha,nucleus
        !          2580: alpha,particle,nucleus
        !          2581: 
        !          2582: amperes
        !          2583: voltage,ohm,battery,resistor
        !          2584: field,electric,dielectric
        !          2585: positive,charge
        !          2586: 
        !          2587: forces,charge
        !          2588: trajectory,motion,charge,force,charges,magnetic,perpendicular,particle,centripetal,cyclotron,lorentz,velocity,frequency
        !          2589: trajectory,field,magnetic,cyclotron,rotation,frequency
        !          2590: amperes,field,charge,fields,permittivity,gauss,electrostatics,charges,magnetic,permeability
        !          2591: amperes,field,cylindrical,circular,symmetry,magnetic,symmetric
        !          2592: current,field,fields,magnetic
        !          2593: helmholtz,coils,magnet,righthand,circular,magnetic,permeability,coil,loop,solenoid
        !          2594: field,magnetic,coil,loop
        !          2595: coils,toroids,amperes,field,fields,toroid,solenoids,magnetic,coil,solenoid
        !          2596: toroids,field,fields,toroid,hospitals,solenoids,magnetic,patient,solenoid
        !          2597: forces,field,magnetic,ampere,currents,newtons,hand,force
        !          2598: repulsive,forces,length,wires,opposite,currents,force,directions,flow
        !          2599: coils,field,net,motor,torque,force,electrons,electrical,galvanometer,magnets,magnetic,coil,lorentz,loop
        !          2600: magnet,field,torque,magnitude,magnetic,coil
        !          2601: magnet,dioxide,charge,orbital,moment,antiferromagnetism,permittivity,atoms,temperature,electrons,ferro,atom,ferromagnetism,orbit,magnetic,superconductors,atomic,electromagnet,magnetizing,coil,moments,magnetism
        !          2602: 
        !          2603: example,force,block,static,friction
        !          2604: dihybrid,alleles,gamete,mendel,phenotype,dominant,recessive,inheritance,meiosis,chromosome,phenotypic
        !          2605: alleles,gametes,assortment,mendel,phenotype,independent,punnett
        !          2606: dihybrid,mendel,phenotype,genotypes,ratio,genetics,punnett
        !          2607: frequencies,genetics,ratios,rule,probability,addition,independent,multiplication,phenotypic,rules,alternative
        !          2608: monohybrid,alleles,independent,genetics,punnett,square,genetic,cross,crosses
        !          2609: dihybrid,alleles,genetics,meiosis,probability,chromosome,punnett,square,multiplication,genotype
        !          2610: phenotype,addition,independent,genetics,probability,punnett,square,genotype
        !          2611: alleles,chromatids,chromosomal,chromosome,crossing,gene,genetics,homologs,maternal,nonsister,over,paternal,sister
        !          2612: alleles,chromatids,genetic,genetics,maternal,meiosis,nonparental,nonsister,paternal,recombination
        !          2613: kg,vector,mass,momentum,vectors,linear,velocity
        !          2614: energy,unit,charge,ne,electrons,electric,charges,uncharged,conservation,quantization,electron,units
        !          2615: 
        !          2616: forces,charge,force,charges
        !          2617: field,charge,force,electric,vector,charges
        !          2618: field,currents,magnitude
        !          2619: superconducting,particle,cyclotron,rotation,frequency
        !          2620: 
        !          2621: 
        !          2622: 
        !          2623: 
        !          2624: 
        !          2625: 
        !          2626: 
        !          2627: 
        !          2628: 
        !          2629: 
        !          2630: 
        !          2631: 
        !          2632: 
        !          2633: 
        !          2634: 
        !          2635: 
        !          2636: 
        !          2637: 
        !          2638: 
        !          2639: 
        !          2640: 
        !          2641: 
        !          2642: 
        !          2643: 
        !          2644: 
        !          2645: momentum,forces,newtons,force,linear
        !          2646: 
        !          2647: momentum,energy,collisions,elastic,collision
        !          2648: momentum,motion,impulse,range,projectile,velocity
        !          2649: error,fractional,percent,percentage
        !          2650: angular,circular,magnitude,acceleration,torque,speed,rotational,inertia,ia
        !          2651: torque,force,perpendicular
        !          2652: 
        !          2653: 
        !          2654: electric,field,fields,force
        !          2655: masses,speed,collisions,collide,mass,elastic,collision
        !          2656: 
        !          2657: 
        !          2658: 
        !          2659: 
        !          2660: 
        !          2661: 
        !          2662: angular,rotational,voltage,emf,rotates,magnetic,rotating,coil,velocity,frequency
        !          2663: 
        !          2664: 
        !          2665: lenzs,angle,field,faradays,potental,counterclockwise,clockwise,magnitude,vector,magnetic,potential,coil
        !          2666: field,faradays,current,section,emf,induced,magnitude,magnetic,coil,units
        !          2667: field,mutual,inductance,faradays,voltage,induced,magnetic,solenoid
        !          2668: measures,length,angular,radian,arc,rad,radius,radians
        !          2669: 
        !          2670: 
        !          2671: 
        !          2672: 
        !          2673: 
        !          2674: kinetic,energy,mass,gravitationally,impact,potential
        !          2675: 
        !          2676: temperatures,orbital,revolution,orbit,axis,lattitude,sun,elliptical,temperature,seasons,radiation,ellipse,solar,rotation,seasonal,plane,rays
        !          2677: geostationary,period,equator,satellite,orbits,earth,satellites,orbit,tv,axis,rotation,animation,plane
        !          2678: acceleration,centripetal,proof,derivation
        !          2679: 
        !          2680: derivation
        !          2681: proof
        !          2682: 
        !          2683: wavelength,wave,sound,vibrations,harmonic,beat
        !          2684: 
        !          2685: 
        !          2686: 
        !          2687: 
        !          2688: torques,moment,torque,arm,force,perpendicular,rotation
        !          2689: equilibrium,angular,torque,counterclockwise,rotational,clockwise
        !          2690: equilibrium,torques,balance,rotation,rotational,weight
        !          2691: 
        !          2692: 
        !          2693: kg,center,equilibrium,frictional,torques,forces,mass,gravity,force,rotational,translational
        !          2694: 
        !          2695: 
        !          2696: inertia,axis,parallel,rotation,theorem
        !          2697: tangential,radius,shape,equilibrium,acceleration,inertia,angular,radial,moment,rotating,rigid,torque,rotation,arm,rotational,rotate,dynamics
        !          2698: 
        !          2699: 
        !          2700: radius,masses,acceleration,momentum,torques,motion,forces,slipping,inertia,angular,moment,rotating,inclined,rotation,rotational,velocity,translational
        !          2701: momentum,rate,conserved,angular,hoop,rotating,torque,rotation,velocity
        !          2702: rotational,acceleration,rotation
        !          2703: translation,kinetic,energy,inertia,moment,linear,work,rotating,wo,rotation,rotational,translational,moments
        !          2704: momentum,lo,sphere,inertia,conserved,angular,moment,cycle,rotating,rotation,io,spherical,velocity,ro
        !          2705: system,momentum,period,angular,moment,spinning,gyroscopes,vector,conserved,precession,conservation,rotation,precesses,velocity
        !          2706: stable,unstable,center,equilibrium,torques,motion,forces,static,mass,gravity,neutral,force,stability,mechanical
        !          2707: aluminum,inertia,axis,moment,weights,rotation,displacement,disks,weight,frequency,moments
        !          2708: sphere,velocities,linear,friction,gravity,rolls,inclined,rotation,speed,inclines,spheres,plane,rolling,roll,incline
        !          2709: 
        !          2710: 
        !          2711: direction,vectors,momentum,vector,motion,kinetic,inertia,angular,perpendicular,moment,righthand,torque,rotation,rotational,velocity,kinematic
        !          2712: momentum,kinetic,energy,inertia,angular,moment,work,conservation,torque,rotation,ia,rotational,rq
        !          2713: equilibrium,torques,forces,gravity,supported,applet,stability,bodies,support
        !          2714: torque,counterclockwise,clockwise
        !          2715: momentum,angular,moment,weights,demonstration,direction,inertia,friction,conservation,rotation,velocity
        !          2716: momentum,angular,gravity,rotating,precession,rotation
        !          2717: 
        !          2718: meters,pressure,modulus,atmosphere,bulk,meter,density,solution
        !          2719: meters,balance,newtons,force,pressure,balanced,area
        !          2720: minimum,force,pressure,area,torr
        !          2721: forces,gravity,force,mass,density,volume,alcohol
        !          2722: newtons,force,water,specific,mass,density,weight,buoyant
        !          2723: incompressible,diameter,dynamics,nonturbulent,fluid,velocity
        !          2724: liter,diameter,pressure,viscosity,cm,density,liters
        !          2725: rates,incompressible,poiseuilles,ratio,viscosity,units
        !          2726: archimedes,force,density,buoyant
        !          2727: 
        !          2728: 
        !          2729: 
        !          2730: angle,vectors
        !          2731: 
        !          2732: 
        !          2733: angle,vectors,vector
        !          2734: 
        !          2735: distance,laser,speed,radius,velocity
        !          2736: length,height,diverging,focal,lens,image,magnification
        !          2737: vertical,reflecting,mirror,reflection,light
        !          2738: incidence,angle,refraction
        !          2739: deform,steel,force,pressure,strain,stress,elastic,volume,inelastic
        !          2740: 
        !          2741: 
        !          2742: 
        !          2743: 
        !          2744: 
        !          2745: 
        !          2746: 
        !          2747: 
        !          2748: 
        !          2749: 
        !          2750: 
        !          2751: diving,pressuredepth,pressure,atmosphere,divers,depth,atmospheres
        !          2752: 
        !          2753: 
        !          2754: 
        !          2755: 
        !          2756: gas,submerged,gravity,float,force,floats,fluid,displaced,density,floating,volume,liquid,weight,buoyant
        !          2757: 
        !          2758: 
        !          2759: 
        !          2760: 
        !          2761: reflecting,mirror,concave
        !          2762: mirror,concave,image
        !          2763: luminous,flux
        !          2764: melting,ice
        !          2765: bernoulli,forces,gravity,effect,pressure,principle,lift,velocity
        !          2766: 
        !          2767: 
        !          2768: 
        !          2769: 
        !          2770: 
        !          2771: freezing,heat,thermostats,pyrometer,wavelength,expansion,unfrozen,chemoluminescence,thermocouple,temperature,voltage,bimetallic,thermal,color,light,density,thermometers,resistance,expand
        !          2772: kelvins,temperatures,liquids,thermometer,degrees,temperature,pressure,phase,moles,applet,kelvin,volume
        !          2773: coefficient,expansion,linear,volume
        !          2774: length,expanding,railroad,track,temperature,force,strain,stress,expand
        !          2775: 
        !          2776: impulses,gas,momentum,forces,energy,gases,impulse,random,temperature,force,pressure,collisions,kinetic,theory,elastic,conservation,particles,collision
        !          2777: gas,simulation,molecules,temperature,collisions,applet,kinetic,theory
        !          2778: equilibrium,solid,ideal,atoms,molecules,temperature,pressure,average
        !          2779: ke,gas,boltzmanns,expansion,temperature,thermal,kelvin,scale,summary
        !          2780: beams,temperatures,collider,universe,protons,colder,ion,magnitudes,cosmos,gluons,temperature,body,nuclei,supernova,conductors,brookhaven,accelerators,coldest,boseeinstein,fission,nuclear,superconductors,relativistic,volts,explodes,condensation,boils,electron,bomb,explosion,evaporates
        !          2781: spring,animation
        !          2782: shm,oscillating,system,equilibrium,joules,energy,kinetic,mass,spring,potential,horizontal,velocity
        !          2783: animation,frequency
        !          2784: spring,animation
        !          2785: motion,distance,mg,angular,mgx,equilibium,suspended,spring,displacement,frequency
        !          2786: pendulum,animation
        !          2787: animation,tension
        !          2788: shm,pendulum,period
        !          2789: sonar,animation
        !          2790: spring,animation
        !          2791: concave,mirror,magnification
        !          2792: concave,image,focal
        !          2793: bernoulli,fire,hose,welcome,physics
        !          2794: mirror,convex,magnification
        !          2795: protein,beans,material,energy,mass,crop,soybeans,biomass,biochemical,photosynthesis,max,photo,soybean,glycine,tofu,plant,agricultural,soy
        !          2796: rubp,dinucleotide,twostep,triphosphate,energy,chemical,calvin,cycle,chloroplast,step,photo,ribulose,atp,nicotonamideadenine,co,adenine,reactions,bisphosphate,phosphate,light,photosynthesis,nadph,plant
        !          2797: photosystems,study,energy,chemical,reactions,guide,light,chloroplasts,photosynthesis,objectives
        !          2798: mirror,convex
        !          2799: heat,chapter
        !          2800: heat,energy,work,temperature,phase,warm,mechanical,thermal,kinetic,latent,friction,conservation,potential,translational
        !          2801: heat,energy,btuhour,calorie,oc,kcal,joule,temperature,thermal,cal,btu,kilocalorie
        !          2802: heat,equivalent,temperature,mechanical,thermal,cal
        !          2803: 
        !          2804: weights,work,mechanical,cal,weight,calories
        !          2805: heat,energy,combustion,gasoline,temperature,friction,kcalkg
        !          2806: heat,energy,matter,temperature,capacity
        !          2807: lumen,thylakoid,chloroplast,photosynthesis,photo,embedded,lipid,proteinpigment,membrane,structures
        !          2808: prism,refraction
        !          2809: refraction
        !          2810: refraction
        !          2811: refraction,light
        !          2812: index,refraction
        !          2813: 
        !          2814: refraction
        !          2815: refraction
        !          2816: lens
        !          2817: 
        !          2818: wavelength,rainbows,incoming,dispersion,prism,refraction,deflected,sunlight,light,prisms,medium,angle,wavelengths,droplets,angles,reflection,deflection,reflected,frequency
        !          2819: concave,principle,lens,image,rays
        !          2820: principle,convex,image,rays
        !          2821: fire,refraction,filled,pouring
        !          2822: fire,refraction,pouring,internally
        !          2823: lens
        !          2824: 
        !          2825: 
        !          2826: 
        !          2827: example,heat,tungsten,temperature,calorimetry
        !          2828: transfers,temperatures,heat,equilibrium,liquids,energy,gases,temperature,capacities,insulation,calorimetry
        !          2829: gas,heat,lattice,solid,phases,matter,molecules,temperature,pressure,electrons,phase,thermal,plasma,liquid,attractive,bonds
        !          2830: heat,lattice,boiling,energy,solid,temperature,phase,transition,specific,latent,melt,capacity,steam,transfer
        !          2831: freezing,gas,temperatures,heat,energy,fusion,solid,phases,temperature,melting,water,phase,transition,specific,latent,melt,condensation,vaporization,liquid
        !          2832: heat,equilibrium,temperature,melting,thermal,melts,melt
        !          2833: heat,electromagnetic,molecule,fields,convection,molecules,transfered,conduction,radiation
        !          2834: temperatures,heat,electromagnetic,temperature,blackbody,microwave,radiation,applet,radiates,stefanboltzmann,spectrum
        !          2835: temperature,radiation,emissivity,radiated,kelvin,power
        !          2836: heat,fusion,degrees,temperature,phase,mechanical,specific,radiated,latent,kelvin,degree,conducted
        !          2837: heat,fusion,combustion,conduction,mechanical,thermal,specific,ti,latent,calorimetry,conductivity,vaporization,summary,stefans
        !          2838: wavelength,slit,light,interference
        !          2839: slit,interference
        !          2840: simulation,slit
        !          2841: field,charge,force,efield,electric,direction,conceptual
        !          2842: Figure,of E-field lines
        !          2843: 
        !          2844: 
        !          2845: 
        !          2846: 
        !          2847: lenses,magnification
        !          2848: 
        !          2849: 
        !          2850: 
        !          2851: 
        !          2852: 
        !          2853: 
        !          2854: 
        !          2855: 
        !          2856: 
        !          2857: 
        !          2858: 
        !          2859: 
        !          2860: 
        !          2861: isotherm,gas,gases,ideal,adiabatic,monoatomic,pressure,adiabat,specific,volume,heats,isothermal,process
        !          2862: incidence,index,refraction
        !          2863: incidence,index,refraction,ray
        !          2864: refraction
        !          2865: refraction
        !          2866: refraction,critical
        !          2867: Physics,material,refraction
        !          2868: refraction
        !          2869: 
        !          2870: 
        !          2871: lens
        !          2872: lens
        !          2873: lens
        !          2874: 
        !          2875: entropy,heat, transfer
        !          2876: 
        !          2877: 
        !          2878: carnot,cycle,derivation
        !          2879: carnot,cycle,derivation
        !          2880: 
        !          2881: 
        !          2882: 
        !          2883: 
        !          2884: 
        !          2885: 
        !          2886: oscillation,period,mass,spring,displacement
        !          2887: shm,pendulum,motion,period,amplitude,acceleration,spring,harmonic,displacement,oscillations
        !          2888: pendulum,applet,harmonic
        !          2889: 
        !          2890: period,pendulum, harmonic, motion
        !          2891: length,pendulum, harmonic, motion
        !          2892: pendulum,oscillate,length,cycles
        !          2893: pendlum,motion, harmonic
        !          2894: shm,angular,acceleration,harmonic,displacement,velocity,frequency
        !          2895: period,amplitude,harmonic,displacement,frequency
        !          2896: vibrating,electromagnetic,wavelength,transverse,phase,amplitude,longitudinal,waves,wave,sound,intensity,velocity,frequency,oscillations
        !          2897: constructive,circular,applet,interference
        !          2898: reflected,boundary,diffraction,angle,waves,wave,wavelength,light,diffracted,reflection,refraction,refracted,medium,phase
        !          2899: wavelength
        !          2900: frequency
        !          2901: strings,natural,frequencies,integer,vibration,length,wavelength,instrument,node,string,velocity
        !          2902: strings,frequencies,instrument,vibrate,harmonics,sound,string,harmonic,frequency
        !          2903: 
        !          2904: natural,frequency, wave, string
        !          2905: strings,frequencies,waves,wave,string,velocity
        !          2906: 
        !          2907: wave,velocity, string, tension, linear, mass, density
        !          2908: momentum,energy,speed,mass,relativistic,photon,particle
        !          2909: 
        !          2910: kinetic,energy
        !          2911: lens
        !          2912: momentum,energy,speeds,approximation,einstein,kinetic,classical,mass,relativistic
        !          2913: photoelectric,scientist,motion,atoms,molecules,nobel,atom,einstein,theory,atomic,theoretical,particles,relativity,brownian,scientific,quantum,bomb
        !          2914: 
        !          2915: momentum,energy,speed,kinetic,light,electron
        !          2916: addition,classical,velocity
        !          2917: approximate,beta,speeds,speed,light,dilation,relative,gamma
        !          2918: moon,speeds,spacecrafts,relativistic,light,relativity,spacecraft,gamma
        !          2919: masses,relativy,curved,reference,general,freely,inertial,gravitational,gravity,path,nonrotating,equivalent,electrostatic,force,newtonian,dimensions,attraction,accelerating,acceleration,einstein,mass,space,relativity,albert,newton,curvature,weight
        !          2920: hole,star,starlight,black,space,gravity,holes,hawking,images,constellation,animation,dark,orion,observer,frame,deflected,betelgeuse
        !          2921: contracted,rest,length,clock,relativity,speed,beam,observer,frame,dilated,contraction
        !          2922: length,speed,contraction
        !          2923: 
        !          2924: 
        !          2925: contracted,length,lengthcontraction,astronomical,speed,diameter,contraction
        !          2926: coordinate,point,reference,velocities,galilean,speed,lorentz,dilation,frames,velocity,transformation,relative
        !          2927: 
        !          2928: momentum,relativistic,speed,velocity,relativistically
        !          2929: shifted,quantities,everexpanding,hubble,sc,einstein,universe,red,inversely,redshifted,propagate,telescope,relativistic,wavelength,doppler,telescopes,light,galaxy,galaxies,effect,dilation,shift,medium,observer,velocity,frequency,ether
        !          2930: contracted,twin,paradox,length,light,relativity,travel,velocity
        !          2931: distant,universe,red,density,galaxies,shift,frequency
        !          2932: 
        !          2933: indices,reflection,refraction
        !          2934: gas,expansion,ideal,temperature,spontaneously,free,irreversible,reversible,entropy,volume,isothermal
        !          2935: thermodynamics
        !          2936: heat,energy,fundamental,law,laws,entropy,conservation,thermodynamics
        !          2937: gas,definitions,heat,system,pvnkt,temperature,boundary,bath,irreversible,isolated,reservoir,capacity,thermodynamic,thermodynamics,boundaries,process
        !          2938: gas,heat,isometric,helmholtz,energy,isobaric,work,adiabatic,temperature,pressure,mechanical,law,volume,conservation,thermodynamic,thermodynamics,transfer,isothermal
        !          2939: gas,heat,isometric,energy,isobaric,work,ideal,adiabatic,temperature,pressure,volume,conservation,thermodynamic,thermodynamics,isothermal
        !          2940: gas,compress,work,force,piston,volume,displacement
        !          2941: heat,isometric,work,mechanical,volume,process
        !          2942: heat,isometric,work,excitation,mechanical,volume,process
        !          2943: heat,work,combustion,adiabatic,thermal,insulation,processes,engine,process
        !          2944: gas,heat,equilibrium,insulated,energy,expansion,work,ideal,temperature,thermally,free,processes,internal,process,expand
        !          2945: system,energy,universe,spontaneously,processes,entropy,increase,subsystem,thermodynamic,thermodynamics,process
        !          2946: gas,temperatures,heat,isothemal,equilibrium,energy,isobaric,cycle,expansion,work,ideal,adiabatic,pump,temperature,irreversible,reversible,cooled,entropy,thermodynamic,thermodynamics
        !          2947: heat,energy,work,efficiency,exhausts,exhausted,absorbed,engine,thermodynamics
        !          2948: temperatures,heat,cycle,efficiency,idealgas,temperature,carnot
        !          2949: heat,energy,absorbs,temperature,conduction,thermal,reservoirs,reservoir,entropy
        !          2950: heat,energy,work,efficiency,friction,engine,thermodynamics
        !          2951: temperatures,heat,equilibrium,temperature,water,specific,calorimetry,entropy,capacity,transfer
        !          2952: gas,heat,isobaric,work,pressure,isobarically,volume,solution,expand
        !          2953: gas,expansion,ideal,adiabatic,monatomic
        !          2954: heat,energy,temperature,collide,kinetic,entropy,process
        !          2955: heat,work,ideal,efficiency,carnot,engine,thermodynamics
        !          2956: heat,system,energy,work,efficiency,thermodynamic,internal,thermodynamics
        !          2957: temperature,metabolic,watt,power,entropy
        !          2958: waves,vibrations
        !          2959: pendulum,oscillators,motion,oscillation,electromagnetic,force,periodic,waves,wave,string,vibrations,oscillates,oscillations
        !          2960: shm,oscillating,oscillation,period,cycle,force,amplitude,periodic,spring,harmonic,displacement,hz,frequency
        !          2961: 
        !          2962: equation,motion, SHM
        !          2963: shm,oscillatory,motion,oscillation,period,angular,phase,position,sinusoidal,harmonic,displacement,velocity,frequency
        !          2964: oscillators,simulation,oscillator,amplitude,applet,spring,oscillations
        !          2965: shm,motion,sine,phase,oscillator,conditions,cosine,harmonic,displacement,velocity,frequency
        !          2966: motion,oscillation,damping,force,amplitude,damped,friction,spring,harmonic,displacement,exponentially
        !          2967: oscillating,oscillators,motion,propagates,transport,disturbance,mechanical,oscillator,amplitude,applet,periodic,video,sinusoidal,wave,medium
        !          2968: constructive,superposition,displacements,destructive,wavelength,interfering,phase,amplitude,amplitudes,waves,waveform,interference,interfere
        !          2969: constructive,superposition,destructive,wavelength,amplitude,principle,amplitudes,waves,interference
        !          2970: resonances,frequencies,motion,oscillate,vibration,wavelength,construct,resonance,periodic,waves,nodes,interfere,antinodes,displacement,frequency
        !          2971: linear,mass, density
        !          2972: string,wave, velocity, tension, linear, mass, density
        !          2973: oscillation,maxima,minima,harmonic,velocity
        !          2974: 
        !          2975: diopter,length,focal
        !          2976: 
        !          2977: 
        !          2978: 
        !          2979: lc,oscillation,inductor,capacitor,circuit,discharges
        !          2980: 
        !          2981: 
        !          2982: 
        !          2983: 
        !          2984: 
        !          2985: 
        !          2986: ac,circuit,voltage,capacitative,inductor,capacitor
        !          2987: frequencies,resonant,capacitance,inductance,reactance,resonance,circuits,circuit,phase,voltage,capacitive,dissipated,impedance,inductor,power,capacitor,resistance,frequency,resistor
        !          2988: 
        !          2989: energy,photon, planck
        !          2990: wavelength,blackbody,intensity,star,temperature,radiation,wiens,surface
        !          2991: atom,momentum,hydrogen,angular,mechanics,quantum,electron
        !          2992: atomic,spectra
        !          2993: radius,nucleus
        !          2994: distance,repulsion,coulomb,electrostatic,force
        !          2995: energy,mass,proton,binding,nucleus
        !          2996: kinetic,energy,mass,emitted,nucleus,decay
        !          2997: atom,energy,converted,electron,emitted,decay
        !          2998: life,half,nuclei
        !          2999: activity,life,half,disintegrationsecond,atoms,radioactive
        !          3000: activity,life,decays,half,atoms
        !          3001: activity,life,half,atoms,avogadros,radioactive
        !          3002: 
        !          3003: 
        !          3004: 
        !          3005: radius,orbit,bohr,classical,radiate,radii,quantum,electron,quantized
        !          3006: 
        !          3007: 
        !          3008: 
        !          3009: atom,momentum,bohrs,orbit,hydrogen,kinetic,energy,bohr,broglie,waves,angular,photon,gravity,lymer,newtons,electron,levels,emitted,electrons,frequency,balmer,mechanical
        !          3010: 
        !          3011: 
        !          3012: 
        !          3013: 
        !          3014: 
        !          3015: 
        !          3016: 
        !          3017: 
        !          3018: 
        !          3019: 
        !          3020: 
        !          3021: 
        !          3022: 
        !          3023: 
        !          3024: 
        !          3025: 
        !          3026: 
        !          3027: 
        !          3028: velocity,wave, string, tension
        !          3029: velocity,modulus
        !          3030: speed,sound, mercury, bulk modulus
        !          3031: time,speed, sound, distance
        !          3032: fundamental,frequency, wave
        !          3033: 
        !          3034: 
        !          3035: wavelength,sound, velocity, frequency
        !          3036: 
        !          3037: 
        !          3038: 
        !          3039: doppler,observed frequency
        !          3040: doppler,effect, observed frequency, velocity
        !          3041: 
        !          3042: frequencies,rarefactions,motion,molecule,force,pressure,threshold,sine,longitudinal,sinusoidal,elastic,waves,wave,density,compressions,sound,ear,harmonic,compression,medium,intensity,velocity
        !          3043: clinic,disease,diseases,duchennes,dystrophy,genetic,geneticist,genetics,girdle,inheritance,lgmd,limb,muscle,muscular
        !          3044: 
        !          3045: chromosome,duchennes,dystrophy,gamete,gene,genetic,genetics,inheritance,linked,muscular,sex,sexlinked,xchromsome
        !          3046: carrier,disease,dmd,duchennes,dystrophin,dystrophy,gene,genetics,muscle,muscular
        !          3047: disease,genetic,genetics,human,inheritance,pedigree,pedigrees
        !          3048: 
        !          3049: 
        !          3050: area,expansion,gas,ideal,isothermal,line,molecules,moles,pressure,volume,weight,work
        !          3051: 
        !          3052: 
        !          3053: 
        !          3054: 
        !          3055: 
        !          3056: 
        !          3057: cat,mendelian,genetics,inherittance,gene,tabby,inherit,coat,tortoiseshell
        !          3058: cat,mendelian,genetics,inheritance,color,coat
        !          3059: allele,cat,coat,color,genes,genetics,inheritance,mendelian,nonmendelian,tan
        !          3060: 
        !          3061: 
        !          3062: 
        !          3063: 
        !          3064: 
        !          3065: 
        !          3066: 
        !          3067: 
        !          3068: Charge,Voltage,Electrostatics
        !          3069: 
        !          3070: 
        !          3071: 
        !          3072: 
        !          3073: 
        !          3074: 
        !          3075: 
        !          3076: 
        !          3077: 
        !          3078: 
        !          3079: 
        !          3080: 
        !          3081: 
        !          3082: 
        !          3083: 
        !          3084: 
        !          3085: 
        !          3086: 
        !          3087: 
        !          3088: 
        !          3089: 
        !          3090: 
        !          3091: 
        !          3092: 
        !          3093: 
        !          3094: 
        !          3095: doppler,speed,effect,source,velocities,sound,observer,velocity,frequency
        !          3096: 
        !          3097: 
        !          3098: activity
        !          3099: 
        !          3100: protons,energies,nuclei,detectors,particle,masses,momentum,energy,alpha,nucleons,particles,kinetic,mass,americium,nucleus,decay,excitation,conservation,isotope
        !          3101: antiparticle,mev,momentum,beta,nucleons,energy,mass,capture,decays,antilepton,antielectron,conserved,energies,antineutrino,emission,neutron,positron,leptons,particles,lepton,electron,radioactive,neutrino,nucleus,decay
        !          3102: protons,energies,nuclei,atom,state,emitted,gamma,photons,mev,line,energy,lines,electrons,balmer,transition,nucleons,nuclear,photon,transitions,rays,states,nucleon,hydrogen,spectral,light,levels,nucleus,decay,discrete,decays,ray,ev,neutrons,radioactive
        !          3103: decays,nuclei,fluctuations,life,exponential,radioactive,nucleus,mean,decay
        !          3104: line,curie,decays,half,nuclei,bq,ci,activity,life,disintegration,disintegrations,exponential,bequerel,radioactive
        !          3105: 
        !          3106: 
        !          3107: root,calculator,square
        !          3108: 
        !          3109: 
        !          3110: 
        !          3111: 
        !          3112: information,accelerator
        !          3113: particle,adventure,animation,physics
        !          3114: generation,genetic,mendel,mendels,offspring,parental
        !          3115: 
        !          3116: 
        !          3117: maxwell,electromagnetic,field,wavelength,speed,refraction,propagation,longitudinal,vector,amplitudes,waves,magnetic,wave,physics,frequency,oscillations
        !          3118: 
        !          3119: force
        !          3120: 
        !          3121: 
        !          3122: 
        !          3123: lens,maker
        !          3124: 
        !          3125: energy,field,efield,electric,earths,sunlight,magnetic,density,sun
        !          3126: momentum,maxwell,energy,warmth,electromagnetic,reflection,force,skin,pressure,radiation,sunburn,sunlight,waves,wave,sunscreen,light,sun
        !          3127: momentum,energy,newtons,force,pressure,radiation,sunlight,flux,intensity
        !          3128: frequencies,microwaves,electromagnetic,wavelength,wavelengths,absorption,radiation,waves,light,absorbed,radar,medium,frequency,spectrum,gamma
        !          3129: photoelectric,diffraction,maxwell,energy,hertz,electromagnetic,duality,waveparticle,optics,young,quantumparticle,ray,scattering,planck,einstein,waves,corpuscular,wave,light,newton,huygens,quantum,fresnel
        !          3130: momentum,recoil,thermal,toy,absorber,absorbes,radiometer
        !          3131: angle,outgoing,incoming,angles,reflection
        !          3132: trigonometry,snells,speed,refraction,incident,light,rays
        !          3133: lenses,mirrors
        !          3134: snells,angle,optics,incoming,index,angles,reflection,refraction,refracted,ray,reflected,light,optically,surface,rays
        !          3135: angle,reflection,ray,reflected,video,internal
        !          3136: tracing,radially,virtual,eye,mirror,reflection,directions,ray,reflected,light,mirrors,images,image,plane,observer,rays
        !          3137: reflect,curved,length,mirror,focal,reflection,spherical,ray,reflected,concave,light,surface,mirrors,curvature
        !          3138: virtual,eye,mirror,focal,ray,reflected,concave,light,image,enlarged,magnification,rays
        !          3139: length,mirror,focal,inverted,concave,curvature,image,magnification
        !          3140: length,mirror,focal,ray,concave,mirrors,convex,curvature,image,magnification
        !          3141: positive,erect,virtual,eyes,object,eye,mirror,focal,inverted,images,curvature,image,enlarged,magnification
        !          3142: diffraction,snells,incidence,displacements,ray,incident,transmitted,displaced,law,light,lenses,transparent,displacement,beam
        !          3143: length,lensmaker,approximation,focal,refraction,refracted,ray,formula,concave,lens,focus,light,lenses,convex,curvature,rays
        !          3144: distance,length,mirror,focal,lens,lenses,convex,images,image
        !          3145: erect,length,object,diverging,diagram,focal,lens,image
        !          3146: length,focal,converging,concave,lensmakerequation,lens,lenses,convex
        !          3147: demonstration,diverging,refracted,lens,lenses,image,rays
        !          3148: dispersions,lengths,telescope,optics,wavelength,dispersion,focal,refraction,hubble,parabolic,lens,chromatic,focus,aberration,light,lenses,nasa,images,aberrations
        !          3149: diopter,length,mirror,focal,lens,lenses,optometrists
        !          3150: prism,circular,concentric,lens,light,lenses,thickness,image,optical,fresnel
        !          3151: incidence,angle,reflecting,mirror,reflection,reflected,light,surface,mirrors,images
        !          3152: maximum,slits,maxima,wavelength,double,slit,separation,interference
        !          3153: illuminated,distance,maxima,length,wavelength,minima,wavelengths,index,refraction,ray,slit,rays
        !          3154: 
        !          3155: concave,erect,virtual,images,mirror,image,ray
        !          3156: 
        !          3157: 
        !          3158: distance,collecting,lens,combination,diverging,mirror,location,image
        !          3159: myopia,length,elongated,nearsightedness,microscope,eye,magnifications,eyeball,focal,refraction,converging,inverted,lens,camera,lenses,muscles,magnification
        !          3160: point,glasses,diopter,lens,length,nearsighted,lenses,eye,divergent,infinity,focal,corrective,farthest,farpoint,correction
        !          3161: length,eye,focal,magnifying,nearpoint,magnification,glass
        !          3162: length,microscope,microscopes,diopters,focal,ocular,eyepiece,fo,magnification
        !          3163: radius,concave,eyepiece,length,telescope,mirror,curvature,focal,magnification
        !          3164: barrel,virtual,microscope,object,image,ocular,objective,optical
        !          3165: lens,combinations,magnifications,image,magnification
        !          3166: instruments,optical
        !          3167: intermediate,virtual,focal,converging,inverted,point,lens,lenses,image,rays
        !          3168: retina,pupil,eye,refraction,iris,cornea,lens,curvature,electochemical,optical
        !          3169: aircornea,retina,lens,length,lenses,human,eye,refractive,mirror,image
        !          3170: farsightedness,retina,elongated,nearsightedness,diverging,eye,eyeball,converging,correction,astigmatism,hypermetropia,lens,lenses,prebyopia,corrections,blurred
        !          3171: glasses,diopter,lens,focus,farsighted,virtual,lenses,eye,mirror,inverse,image
        !          3172: constuctive,maximum,thin,refraction,reflected,light,thickness,interference,film
        !          3173: minimum,maximum,transmission,coated,lens,wave,index,film,reflection,refraction,coating
        !          3174: pattern,maximum,diffraction,central,slit,light,single
        !          3175: diffraction,minima,slit
        !          3176: constructive,hair,fringes,wavelength,light,wedge,interference,glass
        !          3177: diffraction,slits,angle,wavelength,lines,grating,light
        !          3178: constructive,monochromatic,interferometer,michelson,destructive,wave,wavelength,light,interference,mirror
        !          3179: maximum,diffraction,integer,line,maxima,light,separation,grating
        !          3180: diffraction,electromagnetic,phenomena,polarization,field,optics,apertures,phases,introduction,electric,phenomenon,amplitude,waves,magnetic,patterns,wave,interference,mirrors,frequency
        !          3181: 
        !          3182: 
        !          3183: 
        !          3184: 
        !          3185: 
        !          3186: angular,kg,length,mass,momentum,speed
        !          3187: angular,kg,mass,maximum,momentum,net,radius,speed,torque,weight
        !          3188: red,color,violet,light,ultraviolet,infrared,problem,photosynthesis,soybean,colors,spectrum,question
        !          3189: 
        !          3190: photosystems,chlorophyll,thylakoid,chemical,biochemical,photochemistry,photosystem,act,atp,activation,pigment,photosynthesis,nadph,nadp
        !          3191: forces,strongnuclear,energy,electromagnetic,gravitational,force,fundamental,principle,interaction,heisenberg,graviton,particle,conservation,particles,weak,uncertainty
        !          3192: kaon,hadron,pions,quarks,decays,kaons,force,strong,hadrons,muons,quarkantiquark,muon,pion,decay
        !          3193: plutonium,energy,chemical,weapons,nuclei,kiloton,kinetic,fission,reactions,nuclear,neutrons,reactor,bomb
        !          3194: uranium,heat,mev,trigger,energy,liese,chemical,decays,energies,neutron,atoms,chernobyl,fragments,benzene,molecules,triggered,nuclei,electrical,absorption,otto,electronic,atom,reactors,absorbers,kinetic,energetically,fission,ev,nuclear,power,meitner,neutrons,reactor,explosions,electron,isotope,nucleus,hahn,decay
        !          3195: protons,coulomb,electrostatic,force,nucleus
        !          3196: energy,mass,proton,nucleus
        !          3197: kinetic,kev,emitted,nucleus,decay,energy,process
        !          3198: energy,kinetic,positron,kev,emitted,nucleus,decay
        !          3199: life,half,nuclei
        !          3200: half,nuclei,activity,life,isotope,radioactive,decay
        !          3201: activity,life,half,atoms,radioactive
        !          3202: half,atoms,activity,life,avogadros,radioactive
        !          3203: decays,half,atoms,activity,avogadros
        !          3204: 
        !          3205: slit,pattern,diffraction,slits,spacing,distance,lens,reflector,polarizers,power,patterns,wave,wavelength,light,thickness,interference,apertures,film,polarizer,act,screen,frequency
        !          3206: wavelength
        !          3207: constructive,reflected,reflect,lengths,lens,destructive,wave,thin,wavelength,light,interference,wavelengths,index,film,refraction,constructively,glass
        !          3208: constructive,destructive,constructively,superimposing,amplitude,superimposed,waves,wave,interference,interfere,frequency
        !          3209: constructive,slits,spherically,destructive,wavelength,young,phase,source,coherent,slit,waves,wave,light,interference
        !          3210: slits,path,double,phase,split,source,coherent,waves,light,interfere
        !          3211: slit,pattern,slits,wavelength,interference,double
        !          3212: distance,lens,angular,power,observe,diameter,resolving,aberrations,resolution
        !          3213: coatings,wavelength,reflecting,wavelengths,coat,refraction,reflected,photograph,transmitted,lens,lenses,reflections,binocular,glass,coating
        !          3214: interferometer,electromagnetic,length,wavelength,parallel,mirror,split,source,interferometers,michelson,waves,light,medium,observer,ether
        !          3215: monochromatic,illuminate,slit,maximum,superposition,diffraction,integer,slits,maxima,length,waves,wavelength,light,interference,interfere,angles,lines,grating,glass,gratings
        !          3216: length,wavelength,wavelengths,index,refraction,radiation,density,destructively,interfere,frequency
        !          3217: constructive,line,destructive,wavelength,double,slit,interference
        !          3218: constructive,reflected,monochromatic,incident,destructive,wavelength,light,thickness,perpendicularly,interference,index,film,reflection,refraction,colors,medium,ray
        !          3219: constructive,destructive,thin,interference,film,reflection,refraction,coating
        !          3220: angular,eye,magnification
        !          3221: aperture,eyepiece,cameras,lens,reflector,shutter,light,camera,lenses,slr,exposure,eye,mirror,image,focal,film,prism,optical,viewfinding
        !          3222: eyepiece,magnifying,lens,length,virtual,lenses,microscope,magnifications,image,focal,ocular,enlarged,converging,magnification,glass,inverted
        !          3223: eyepiece,barrel,microscope,focal,magnification
        !          3224: eyepiece,lengths,piece,lens,length,telescope,angular,eye,infinity,mirror,image,focal,aberrations,magnifier,magnifies,magnification
        !          3225: eyepiece,length,telescope,angular,focal,magnification
        !          3226: illuminate,slit,diffraction,maxima,length,wave,wavelength,light,separation,angles,single,intensity
        !          3227: aperture,illuminates,diffraction,slits,photographs,telescope,apertures,rayleigh,slit,lens,separating,camera,images
        !          3228: transmission,polarization,field,polarizers,fields,parallel,unpolarized,electric,direction,propagation,transmitted,waves,magnetic,perpendicular,polarizations,polarized,intensity
        !          3229: average,distance,speed
        !          3230: photosynthesis,photosystem
        !          3231: protein,chlorophyll,plastoquinone,cytochrome,plastocyanin,pigments,photosynthesis,photo,photosystem,lipid,membrane,adp,atp
        !          3232: photosynthesis,photosystem
        !          3233: oxygen,plastoquinone,complex,cytochrome,ferrodoxin,synthesis,plastocyanin,gradient,photosynthesis,photosystem,electron,water,atp
        !          3234: oxygen,heavy,synthesis,photosynthesis,ho,heaviness
        !          3235: zdiagram,reactions,plastocyanin,light,photosynthesis,nadph,diagram,ps,atp
        !          3236: photosystem,oxidation,oxidized,photosynthesis,cytochrome,redox,reduction,plastoquinone,reactions,plastocyanin
        !          3237: reduced,oxidized,thylakoid,reactions,photosynthesis
        !          3238: charges,coulomb
        !          3239: coulomb,s law
        !          3240: 
        !          3241: field,electric
        !          3242: field,charge,electric
        !          3243: charge,force
        !          3244: 
        !          3245: 
        !          3246: 
        !          3247: 
        !          3248: 
        !          3249: 
        !          3250: 
        !          3251: 
        !          3252: 
        !          3253: 
        !          3254: 
        !          3255: 
        !          3256: planks,magneton,boltzmanns,gravitational,speed,permittivity,bohr,magnetic,flux,avogadros,permeability,quantum,rydberg
        !          3257: period,gravity,revolution,radius,earth,orbit,mass,astronomical,rotation,data
        !          3258: planetary,rorbit,massme,radiuskm,data
        !          3259: room,seawater,calorie,pressure,specific,air,alcohol,kcalkg,heats
        !          3260: temperatures,boiling,melting,pressure,phase,latent,heats
        !          3261: conductivities
        !          3262: appendix
        !          3263: 
        !          3264: 
        !          3265: 
        !          3266: 
        !          3267: 
        !          3268: 
        !          3269: 
        !          3270: 
        !          3271: 
        !          3272: 
        !          3273: 
        !          3274: 
        !          3275: 
        !          3276: 
        !          3277: direction,vector,addition
        !          3278: 
        !          3279: 
        !          3280: 
        !          3281: 
        !          3282: 
        !          3283: 
        !          3284: 
        !          3285: 
        !          3286: direction,vector
        !          3287: vectors
        !          3288: 
        !          3289: 
        !          3290: 
        !          3291: 
        !          3292: vectors
        !          3293: 
        !          3294: ball,drop,animation
        !          3295: 
        !          3296: 
        !          3297: 
        !          3298: 
        !          3299: 
        !          3300: 
        !          3301: 
        !          3302: 
        !          3303: 
        !          3304: 
        !          3305: 
        !          3306: 
        !          3307: 
        !          3308: 
        !          3309: 
        !          3310: 
        !          3311: 
        !          3312: 
        !          3313: 
        !          3314: 
        !          3315: 
        !          3316: 
        !          3317: 
        !          3318: 
        !          3319: 
        !          3320: charge,force,charges
        !          3321: Newton,s Secondlaw,impulse,force
        !          3322: protein,study,biomolecules,fatty,guide,questions,carbohydrates,macromolecules,acids,lipids,biomolecule,amino,molecules,objectives,proteins,question,carbohydrate
        !          3323: biomolecules,nucleic,molecule,carbohydrates,biomolecule,amino,molecules,proteins,digestion,acids,lipids,digested,lipid,carbohydrate
        !          3324: monomer,polymerization,mono,subunits,sugars,carbohydrates,polysaccharides,sugar,biomolecule,disaccharide,monosaccharide,fructose,saccharide,units,carbohydrate
        !          3325: polymerization,polymer,position,carbohydrates,oh,glucose,carbohydrate
        !          3326: 
        !          3327: 
        !          3328: 
        !          3329: 
        !          3330: 
        !          3331: carbohydrates,sugar,carbohydrate
        !          3332: di,polysaccharides,polysaccharide,hydrolysis,digestion,carbohydrate
        !          3333: polymer,chitin,carbohydrates,potato,beetle
        !          3334: jerusalem,monomer,artichokes,inulin,polysaccharide,carbohydrate,starch
        !          3335: 
        !          3336: 
        !          3337: monomers,carbohydrte,carbohydrates,digestion,glucose,carbohydrate
        !          3338: 
        !          3339: 
        !          3340: 
        !          3341: gap,capacitance,plate,plates,dielectric,capacitor
        !          3342: 
        !          3343: capacitors,capacitance
        !          3344: 
        !          3345: circuits,resistance
        !          3346: parallel,resistors
        !          3347: proton,orbits,radius,circular,alpha,magnetic,particle
        !          3348: proton,circular,orbit,alpha
        !          3349: field,magnetic
        !          3350: curl,thumb,rule,fingers
        !          3351: generator,circuit,voltage,inductor,capacitor,frequency,resistor
        !          3352: 
        !          3353: maximum,capacitance,inductance,circuit,resistor
        !          3354: resonant,resonance,frequency
        !          3355: object,mirror,concave,image
        !          3356: 
        !          3357: potential,resistor
        !          3358: voltage,resistor
        !          3359: practice,exam
        !          3360: 
        !          3361: 
        !          3362: 
        !          3363: 
        !          3364: 
        !          3365: 
        !          3366: 
        !          3367: atwood
        !          3368: atwood
        !          3369: force
        !          3370: 
        !          3371: acceleration,mass
        !          3372: 
        !          3373: newton,second law, acceleration, mass, force
        !          3374: force,free body, tension, acceleration, mass
        !          3375: 
        !          3376: free,body, block, forces, velocity, acceleration
        !          3377: free,body, force
        !          3378: free,body, inclined plane, block, mass, acceleration, 
        !          3379: free,body, ball force, mass, gravity
        !          3380: 
        !          3381: free,body, suspension, tension, force, mass
        !          3382: free,body, pulley
        !          3383: free,body, mass
        !          3384: free,body, pulled, mass, force
        !          3385: 
        !          3386: unbalanced,forces
        !          3387: 
        !          3388: 
        !          3389: 
        !          3390: newton
        !          3391: 
        !          3392: 
        !          3393: 
        !          3394: free,body, force, friction
        !          3395: 
        !          3396: 
        !          3397: 
        !          3398: force,vector
        !          3399: 
        !          3400: velocity
        !          3401: 
        !          3402: 
        !          3403: 
        !          3404: forces
        !          3405: work,force
        !          3406: 
        !          3407: 
        !          3408: force
        !          3409: 
        !          3410: nucleotide,nucleic,rna,deoxyribose,polynucleotide,dna,chain,monomers,nucleotides,phosphate,ribose,acids,acid
        !          3411: purine,nucleotide,polynucleotides,nucleic,rna,guanine,dna,uracil,nucleotides,acids,thymine,ribonucleic,pyrimidine,polynucleotide,deoxyribonucleic,chain,adenine,cystine,acid
        !          3412: 
        !          3413: 
        !          3414: pairing,dna,base
        !          3415: breakdown,degredation,nucletides,acids,amino,acid
        !          3416: pro,amino,proteins,protein,structure,primary,acids,acid
        !          3417: polymerization,polypeptides,macromedia,polypeptide,acids,shockwave,acid
        !          3418: 
        !          3419: 
        !          3420: 
        !          3421: 
        !          3422: 
        !          3423: 
        !          3424: 
        !          3425: 
        !          3426: free,body, force
        !          3427: free,body, force
        !          3428: work
        !          3429: work,equation
        !          3430: energy,potential
        !          3431: velocity,equation
        !          3432: height,inelastic
        !          3433: 
        !          3434: velocity,inelastic
        !          3435: force,momentum, time
        !          3436: 
        !          3437: 
        !          3438: force
        !          3439: 
        !          3440: 
        !          3441: tangential,velocity
        !          3442: 
        !          3443: 
        !          3444: 
        !          3445: 
        !          3446: 
        !          3447: 
        !          3448: 
        !          3449: drift,velocity,derivation
        !          3450: 
        !          3451: capacitance,voltages,angle,phasors
        !          3452: protein,structure,acids,amino,proteins,acid
        !          3453: structure,acids,amino,acid
        !          3454: protein,prot,acids,amino,proteins,acid
        !          3455: vasopressin
        !          3456: oxytocin
        !          3457: 
        !          3458: proteins,protein,pande,vijay,amino,structure,animation,acid
        !          3459: protein,cytochrome,structure,quartenary,tertiary,acids,polypeptide,proteins,acid
        !          3460: protein,hydrogen,structure,acids,amino,bonding,peptide,polypeptide,proteins,bonds,bond
        !          3461: monomer,protein,polypeptides,degredation,monomers,acids,amino,proteins
        !          3462: protein,structure,molecule,molecules,polynucleotide,proteins,structures
        !          3463: oil,linoleic,glycerol,saturated,lipids,fat,acid
        !          3464: fatty,enzymes,acids,lipids,molecules,digested,lipid
        !          3465: components,fatty,glycerol,lipids,bilayer,lipid
        !          3466: nonpolar,polar,positive,hydrophilic,biomolecules,molecule,lipids,biomolecule,molecules,lipid,hydrophobic
        !          3467: polar,biomolecules,fatty,molecule,fattyacid,biomolecule,molecules,fats,hydrophobic,hydrophilic,acids,lipids,lipid,fat,phospholipids,acid,phospholipid
        !          3468: nonpolar,testosterone,polar,biomolecules,progesterone,estradiol,lipids,biomolecule,cholesterol,lipid,fat,phospholipids,phospholipid
        !          3469: activity,lipid,lipids,shockwave
        !          3470: simulation,molecule,work,protein,activity,position,lipids,phospholipid,water,block,rotates,spring,lipid,fat,acid
        !          3471: 
        !          3472: components,biomolecules,molecule,molecules,membrane,hydrophobic
        !          3473: components,hydrophilic,biomolecules,molecule,membrane
        !          3474: components,hydrophilic,biomolecules,molecule,molecules,membrane
        !          3475: biomolecules,identify
        !          3476: 
        !          3477: biomolecules,fatty,nucleic,carboxyl,phosphate,molecule,glycerol,monosaccharides,sugar,acids,biomolecule,amino,bonding,polypeptide,phospholipids,acid,bond
        !          3478: group,biomolecules,ion,molecule,functional,molecules,acid,hydrophobic
        !          3479: 
        !          3480: nucleic,biomolecule,genes,proteins,nuclei,dna,protein,acids,acid
        !          3481: battery,capacitance,capacitors,charge,circuit,equivalent,parallel,voltage
        !          3482: activex,flash,introduction,macromedia,plugin,plugins,shockwave
        !          3483: 
        !          3484: 
        !          3485: 
        !          3486: 
        !          3487: 
        !          3488: 
        !          3489: 
        !          3490: 
        !          3491: 
        !          3492: 
        !          3493: 
        !          3494: 
        !          3495: 
        !          3496: 
        !          3497: 
        !          3498: 
        !          3499: 
        !          3500: 
        !          3501: 
        !          3502: 
        !          3503: 
        !          3504: 
        !          3505: self,assessment
        !          3506: 
        !          3507: 
        !          3508: 
        !          3509: 
        !          3510: dna,size,machine
        !          3511: 
        !          3512: 
        !          3513: 
        !          3514: 
        !          3515: 
        !          3516: 
        !          3517: 
        !          3518: 
        !          3519: 
        !          3520: 
        !          3521: 
        !          3522: 
        !          3523: 
        !          3524: circuit,ohms,resistance
        !          3525: series,resitance
        !          3526: parallel,resitance
        !          3527: deviation,measured,standard,measurement,measurements,mean
        !          3528: measure,measurement,mean
        !          3529: deviation,standard
        !          3530: uncertainty
        !          3531: force,acceleration,accelerated,uncertainty
        !          3532: uncertainty
        !          3533: 
        !          3534: 
        !          3535: 
        !          3536: 
        !          3537: 
        !          3538: 
        !          3539: 
        !          3540: Calculus,Integration,volume
        !          3541: logarithm,derivative
        !          3542: uncertainty
        !          3543: 
        !          3544: 
        !          3545: 
        !          3546: TeX,formulas,root
        !          3547: 
        !          3548: 
        !          3549: 
        !          3550: 
        !          3551: 
        !          3552: 
        !          3553: 
        !          3554: 
        !          3555: 
        !          3556: 
        !          3557: 
        !          3558: dormant,growth,light,period,plant,process,processes,seed,temperature
        !          3559: logarithm,differentiation,derivative
        !          3560: 
        !          3561: 
        !          3562: 
        !          3563: 
        !          3564: 
        !          3565: 
        !          3566: 
        !          3567: 
        !          3568: 
        !          3569: 
        !          3570: 
        !          3571: 
        !          3572: 
        !          3573: 
        !          3574: constellations,constellation
        !          3575: 
        !          3576: Identification,Star
        !          3577: Astro
        !          3578: 
        !          3579: circumpolar,stars
        !          3580: circumpolar,stars
        !          3581: 
        !          3582: notation,scientific
        !          3583: distances
        !          3584: dec,constellations
        !          3585: april,constellations
        !          3586: april,constellations
        !          3587: april,stars
        !          3588: Dec,Stars
        !          3589: Feb,stars
        !          3590: tell,star,constellations,stars,circumpolar,diurnal
        !          3591: celestial,clock,circumpolar
        !          3592: 
        !          3593: 
        !          3594: 
        !          3595: 
        !          3596: 
        !          3597: 
        !          3598: 
        !          3599: 
        !          3600: 
        !          3601: 
        !          3602: 
        !          3603: equivielent,resistance
        !          3604: 
        !          3605: 
        !          3606: 
        !          3607: 
        !          3608: 
        !          3609: 
        !          3610: 
        !          3611: 
        !          3612: 
        !          3613: 
        !          3614: 
        !          3615: 
        !          3616: 
        !          3617: notation,power,number,positive,scientific
        !          3618: data,division
        !          3619: length,units,sides
        !          3620: motion,ball,thin,newtons,tension,st,acceleration,balls,mass,position,laws,constant,weight
        !          3621: 
        !          3622: magnitude,number,unit,length,power,newtons,speed,force
        !          3623: 
        !          3624: 
        !          3625: 
        !          3626: 
        !          3627: acceleration,vector,mass,volume,gravity,speed,force,sphere,velocity
        !          3628: magnitude,vector,velocity
        !          3629: 
        !          3630: 
        !          3631: 
        !          3632: 
        !          3633: 
        !          3634: 
        !          3635: acceleration,ball,balls,coefficient,constant,height,mass,motion,picture,position,tension,thin,velocity
        !          3636: motion,direction,vector,position,speed,water,displacement,cross,velocity
        !          3637: hydroxyl,biomolecules,fatty,nucleic,molecule,aldehyde,sugar,identification,amino,lipid,acid
        !          3638: biomolecules,molecule,biomolecule
        !          3639: base,uracil,adenine,chemistry,nucleic,guanine,sugar,acids,acid
        !          3640: Carbon,Nitrogen,Water
        !          3641: photons,energy,transport,molecule,carbohydrates,biomolecule,amino,molecules,proteins,lines,atp,protein,components,component,cells,chloroplasts,stored,electron,acid
        !          3642: bioenergetics,cells,chemical,energy,entropy,picture,proteins,reactions,specific,unit
        !          3643: log,integral,indefinite
        !          3644: Clusters,of galaxies, star images
        !          3645: timeline
        !          3646: timeline
        !          3647: 
        !          3648: 
        !          3649: organelles,cytosol,molecules,proteins,membrane,structure,organelle,cell
        !          3650: organelles,structure,organelle,cell,lipids,ribosome,lipid
        !          3651: organelle,hyperkinetic,number,organelles,liver,protein,cells,structure,membranes,cell,lipids,ribosome,nucleus
        !          3652: myosin,organelles,cells,cilia,structure,microtubules,eukaryotic,cell,tubulin,cilium,epithelia,trachea,epithelial,membrane
        !          3653: 
        !          3654: 
        !          3655: organelles,wall,stains,cells,structure,epidermal,dicot,mesophyll,cuticle,chloroplasts,stomates,photosynthesis,cell,parenchyma,plant,nuclei,membrane
        !          3656: actin,cytoskeletal,metaphase,myosin,organelles,fibers,filaments,mitosis,cycle,organelle,microtubules,cell,divide,cytoskeleton,dividing
        !          3657: 
        !          3658: 
        !          3659: organelle,organelles,structure,microtubules,cell,tubulin,trachea,epithelial
        !          3660: muscle,actin,cells,cell,microtubules,structure
        !          3661: volume,spherical,radius,area,sphere
        !          3662: polymerization,polysaccharides,polymer,polymers,carbohydrates,glucose,monomers,polysaccharide,shockwave,carbohydrate
        !          3663: chains,protein,chain,pro,acids,amino,polypeptide,proteins,acid
        !          3664: growth,succession,energy,carbon,biotic,cycle,abiotic,grow,co,living,life,nonliving,photosynthesis,plant,respiration
        !          3665: block
        !          3666: 
        !          3667: differentiation,logarithmic,log,derivative
        !          3668: biomolecules,molecule,monounsaturated,polysaccharide,molecules,membrane
        !          3669: actin,structure,filaments,microtubles,axons,processes,microtubules,nerve,dendrites,cytoskeleton
        !          3670: Error,distance,accelerates
        !          3671: organelle,organelles,endoplasmic,energy,golgi,light,chloroplasts,reticulum,eukaryotic,lipids,plant,mitochondria,water,bodies
        !          3672: structure,processes,organelle,nuclei
        !          3673: 
        !          3674: microtubules,actin,myosin,cells,structure,fibers,filaments,cell,cytoplasm
        !          3675: cells,structure,cell,cancer
        !          3676: organelle,cytoskeletal,components,organelles,cells,structure,junction,cell,neuromuscular,cellular
        !          3677: paramecium,cells,structure,microtubules,cell,locomotion,proteins,amoeba
        !          3678: differentiation,logarithmic,log,derivative
        !          3679: logarithm,derivative
        !          3680: logarithm,derivative
        !          3681: logarithm,sin,cos,derivative
        !          3682: logarithm,derivative
        !          3683: product,chain,derivative
        !          3684: log,derivatives
        !          3685: log,derivatives
        !          3686: log,derivative
        !          3687: chain,product,derivative
        !          3688: log,derivative
        !          3689: integral,indefinite,log
        !          3690: electrostatics,charged,charges,sphere,static,capacitance,lab,charge,parallel,plate,capacitor,conducting,plates
        !          3691: 
        !          3692: 
        !          3693: 
        !          3694: 
        !          3695: 
        !          3696: 
        !          3697: 
        !          3698: 
        !          3699: summer,constellations,ecliptic,winter
        !          3700: sunrise,transit,moonrise,twilight,moonset,sunset
        !          3701: day,length
        !          3702: socorro,lansing,washington,tampa,spokene,day,wa,daylight
        !          3703: differentiation,log,logarithmic,derivative
        !          3704: differentiation,logarithmic,log,derivative
        !          3705: differentiation,log,logarithmic,derivative
        !          3706: co,protein,glycogen,hemoglobin,primary,proteins,function,glucose
        !          3707: 
        !          3708: 
        !          3709: java
        !          3710: moon,phase,applet,earth,orbit
        !          3711: 
        !          3712: java
        !          3713: applet,orbit,picture,phase
        !          3714: 
        !          3715: 
        !          3716: 
        !          3717: 
        !          3718: equivalent,protein,activity
        !          3719: diagram
        !          3720: Moon,Phase
        !          3721: moon,phases
        !          3722: moon,phases
        !          3723: moon,phases
        !          3724: moon,phase
        !          3725: rise,sunrise,moon,moonrise,times,set,sun,moonset,sunset
        !          3726: log,integral,indefinite
        !          3727: log,integral,indefinite
        !          3728: logarithm,integral,indefinite,sin,cos
        !          3729: log,integral,indefinite
        !          3730: log,integral,indefinite
        !          3731: log,integral,indefinite
        !          3732: log,integral,indefinite
        !          3733: integral,indefinite,log
        !          3734: log,integral,indefinite
        !          3735: earth,orbit,sunlight,position,law,angular,orbital,eyes,degrees,sun,plane,deg,units
        !          3736: calculation,fractions
        !          3737: 
        !          3738: 
        !          3739: 
        !          3740: 
        !          3741: 
        !          3742: structural,glycolipids,integral,bilayer,embedded,proteins,membrane,mosaic,peripheral,protein,membranes,lipids,phospholipid,carbohydrates,cholesterol,glycoproteins,fluid,lipid,phospholipids,carbohydrate,glyco
        !          3743: 
        !          3744: rna,bilayer,proteins,membrane,dna,components,membranes,cell,lipids,phospholipid,carbohydrates,cholesterol,component,structure
        !          3745: barrier,cells,hydrophilic,structure,membranes,diffusion,cell,lipids,lipid,water,membrane,hydrophobic,cytoplasm
        !          3746: protein,hydrophilic,structure,transport,cell,bilayer,molecules,proteins,phospholipids,membrane,phospholipid,hydrophobic
        !          3747: hydrophilic,structure,membranes,structural,cell,cholesterol,bilayer,molecules,membrane,phospholipid,hydrophobic
        !          3748: 
        !          3749: 
        !          3750: acceleration,speed
        !          3751: experiment,capacitance,charge,faradays,parallel,plate,conducting,ice,plates,electrostatics,charged,charges,sphere,static,lab,capacitor
        !          3752: distance,error,position,accelerates,velocity
        !          3753: capacitance,charge,error,volts,potential,capacitor
        !          3754: capacitors,experiment,charges,charge,half,constant,capacity,capacitor,plates,voltage
        !          3755: acceleration,practice,speed
        !          3756: ball,mass,air,speed
        !          3757: acceleration
        !          3758: experiment,length,field,parallel,ideal,gauss,radius,magnetic,conversion,solenoid
        !          3759: experiment,number,magnet,field,faradays,electric,emf,induced,area,law,magnetic,coil,velocity
        !          3760: experiment,snells,parallel,focal,refraction,lens,law,light,lenses,air,surface,convex,magnification,rays
        !          3761: experiment,distance,instruments,lens,virtual,image,focal,optical,magnification,inverted
        !          3762: experiment,distance,instruments,lens,virtual,image,focal,optical,magnification,inverted
        !          3763: constructive,experiment,diffraction,waves,destructive,light,lenses,interference,degrees,interfere,mirrors,phase
        !          3764: frequencies,radiation,experiment,electromagnetic,light,eye,wavelengths,frequency,spectrum,oscillations
        !          3765: freefall,acceleration
        !          3766: probability,random,predictions
        !          3767: 
        !          3768: glycoproteins,fluid,structure,glycolipids,functional,bilayer,proteins,phospholipids,function,membrane,phospholipid,mosaic
        !          3769: Faraday,s Law,radius,number,positive,magnet,position,field,magnetic,constant,speed,flux,coil,voltage,solenoid
        !          3770: Faraday,radius,number,positive,magnet,field,magnetic,speed,flux,coil,resistance,voltage,wire
        !          3771: positive,distance,lens,negative,position,length,image,focal
        !          3772: telescope,microscope,image,optical
        !          3773: slit,pattern,diffraction,wavelength,light,picture
        !          3774: microwaves,wavelength,frequency,units
        !          3775: protein,components,structure,membranes,sperm,carbohydrates,cell,cholesterol,phospholipids,membrane,coating
        !          3776: acceleration,distance time,maximum,accelerating
        !          3777: 
        !          3778: 
        !          3779: 
        !          3780: fluid,structure,membranes,sperm,cell,cholesterol,membrane,process
        !          3781: sperm,bilayer,membrane,fluid,structure,membranes,chromosome,cell,phospholipid,coating
        !          3782: components,static,structure,membranes,work,membrane,mosaic
        !          3783: cholesterol,membrane,dna,protein,components,structure,membranes,glycoprotein,phospholipid
        !          3784: energy,carbon,cycle
        !          3785: producers,energy,carbon,molecule,carbohydrates,molecules,body,water,atom,co,protein,life,hydrogen,organic,production,photosynthesis,primary,food,plant
        !          3786: succession,energy,carbon,cycle,balance,life,processes,photosynthesis,plant,respiration
        !          3787: atom,co,producers,life,hydrogen,energy,carbon,chemical,organic,molecule,production,carbohydrates,photosynthesis,primary,food,molecules,body,plant,water,ca
        !          3788: succession,lava field
        !          3789: flesh,grass
        !          3790: length,area,volume,surface,units
        !          3791: 
        !          3792: 
        !          3793: period,distance,length,string,image,loop
        !          3794: angle,length,height,radius,string
        !          3795: 
        !          3796: magnitude,direction,acceleration,average,period,distance,speed,graph
        !          3797: carbon,cycle, cell level
        !          3798: magnitude,acceleration,position,constant,line
        !          3799: ball,acceleration,mass,height,gravity,surface
        !          3800: distance,speed,accelerating,acceleration,mass,position,constant,crosses
        !          3801: 
        !          3802: 
        !          3803: height,speed
        !          3804: strings,vectors,length
        !          3805: 
        !          3806: angle,length,height,phase,radius,string,image
        !          3807: 
        !          3808: components,acceleration,component,motion,angle,distance,height,friction,projectile,air,degrees,constant,speed,velocity
        !          3809: length,error,black,color,string,image,loop
        !          3810: 
        !          3811: 
        !          3812: 
        !          3813: 
        !          3814: distance,speed,acceleration,average
        !          3815: magnitude,vectors
        !          3816: motion,ball,magnitude,acceleration,position,gravity,speed
        !          3817: calculating,exam,calculations
        !          3818: biomolecules,practice
        !          3819: biomolecules,practice
        !          3820: biomolecules
        !          3821: amino,acid
        !          3822: amino,diagram,acid
        !          3823: carbon,amino,diagram,acids,acid
        !          3824: amino,diagram,atom,chain,hydrogen,acids,acid
        !          3825: amino,diagram,formula,acid
        !          3826: amino,diagram,nucleotides,acid
        !          3827: 
        !          3828: diagram
        !          3829: carbon,diagram,acids,acid
        !          3830: amino,diagram,chain,acids,acid
        !          3831: diagram,glucose,formula
        !          3832: diagram,nucleotides
        !          3833: 
        !          3834: nucleotide,diagram
        !          3835: nucleotide,carbon,diagram,acids,acid
        !          3836: nucleotide,amino,diagram,chain,acids,acid
        !          3837: nucleotide,diagram,glucose,formula
        !          3838: subunits,nucleotide,diagram,dna,specific,nucleotides
        !          3839: biomolecule
        !          3840: nucleotide,biomolecule,diagram,component,lipid
        !          3841: carbon,diagram,molecules,component,acids,lipid,fat,acid
        !          3842: subunits,nucleotide,rna,diagram,specific,component,nucleotides,lipid
        !          3843: diagram,formula,component,lipid
        !          3844: amino,diagram,chain,component,acids,lipid,acid
        !          3845: experiment,heat,energy,equivalent,temperature,water,voltage,electrical,dissipated,specific,mass,power,iv,resistor
        !          3846: diagram,circuit,resistors,voltage,ohms,battery,resistance
        !          3847: experiment,circuit,voltage,wire,ohms,law,resistance,ir,resistor
        !          3848: 
        !          3849: glycoproteins,component,structure,membranes,cholesterol,bilayer,proteins,membrane,phospholipid
        !          3850: hypertonic,transport,water,membrane,hypotonic,cells,membranes,solution,isotonic,medium,plasmolyze
        !          3851: hypertonic,transport,water,membrane,glucose,hypotonic,protein,membranes,solution,isotonic
        !          3852: brackish,energy,transport,clownfish,fish,water,membrane,salmon,freshwater,hypotonic,cells,membranes,organism,osmoregulation,isotonic,osmotic
        !          3853: 
        !          3854: 
        !          3855: 
        !          3856: 
        !          3857: 
        !          3858: 
        !          3859: 
        !          3860: 
        !          3861: 
        !          3862: 
        !          3863: 
        !          3864: 
        !          3865: 
        !          3866: 
        !          3867: 
        !          3868: 
        !          3869: alleles,Weinberg,Hardy,allele,genotypes,genotype,frequency
        !          3870: transport,molecule,molecules,water,membrane,protein,membranes,diffusion,acid
        !          3871: transport,passive,membrane,hydrophobic,components,hydrophilic,membranes,diffusion,active,osmosis
        !          3872: steroids,transport,gradient,membrane,cells,membranes
        !          3873: cotransport,transport,water,membrane,components,hydrophilic,membranes,diffusion
        !          3874: charged,positive,electrochemical,chemical,membranes,diffusion,charge,transport,nerve,gradient,cell,potential,ions,gated,bilayer,membrane,series,phospholipid,conduction,electrical
        !          3875: 
        !          3876: 
        !          3877: 
        !          3878: acid,amino,atp,balance,cell,cells,conduction,constant,electrical,energy,free,glucose,gradient,impulse,ions,membrane,metabolism,molecule,process,significant,water,work
        !          3879: atp,cell,components,cycle,ions,molecules,protein,work
        !          3880: contraction,energy,free,molecule,molecules,process,states
        !          3881: actin,atp,bioen,bioenergetics,cells,energy,hydrolysis,muscle,myosin,process
        !          3882: biochemistry,bioenergetics,chemical,sugar,reaction,life,reactions,starch
        !          3883: bioenergetics,energy,chemical,work,states,entropy,disorder,contraction
        !          3884: log,tan,sec,derivative
        !          3885: log,derivatives,cos
        !          3886: log,derivatives
        !          3887: log,derivatives
        !          3888: log,chain,derivative,product
        !          3889: log,chain,derivative
        !          3890: log,sin,derivative
        !          3891: number,primes,area,approximation,integral,states,trapezoidal,gauss,riemann
        !          3892: integral,indefinite,log
        !          3893: log,integral,indefinite
        !          3894: log,integral,indefinite
        !          3895: log,sin,integral,indefinite
        !          3896: log,integral,indefinite
        !          3897: sqrt,integral,indefinite,log
        !          3898: log,derivative
        !          3899: log,integral,indefinite
        !          3900: log,integral,indefinite
        !          3901: integral,indefinite,log
        !          3902: integral,indefinite,log
        !          3903: differentiation,logarithmic,derivative
        !          3904: sqrt,differentiation,logarithmic,derivative
        !          3905: differentiation,logarithmic,derivative
        !          3906: differentiation,logarithmic,derivative
        !          3907: differentiation,logarithmic,derivative
        !          3908: log,sin,derivative
        !          3909: log,derivative
        !          3910: 
        !          3911: 
        !          3912: log,derivative
        !          3913: log,sin,derivative
        !          3914: differentiation,logarithmic,derivative
        !          3915: differentiation,logarithmic,derivative
        !          3916: differentiation,log,logarithmic,derivative
        !          3917: differentiation,logarithmic,derivative
        !          3918: log,integral,indefinite
        !          3919: integral,indefinite,log
        !          3920: log,integral,indefinite
        !          3921: log,integral,indefinite
        !          3922: log,derivative
        !          3923: log,sqrt,integral,indefinite
        !          3924: log,integral,indefinite
        !          3925: log,sin,integral,indefinite
        !          3926: log,integral,indefinite
        !          3927: log,integral,indefinite
        !          3928: integral,indefinite,int,log
        !          3929: number,primes,trapezoid,area,approximation,integral,states,trapezoidal,gauss,riemann,prime
        !          3930: log,sin,derivative
        !          3931: log,chain,derivative
        !          3932: log,chain,product,derivative
        !          3933: log,derivatives
        !          3934: log,derivatives
        !          3935: log,tan,sec,derivative
        !          3936: cos,log,derivatives
        !          3937: 
        !          3938: direction,speed,force,perpendicular,physics
        !          3939: 
        !          3940: angle,length,height,radius,string
        !          3941: speed,radius
        !          3942: pattern,length,direction,position,color,string
        !          3943: 
        !          3944: length,height,string
        !          3945: 
        !          3946: angle,length,height,phase,radius,string,sun,image
        !          3947: 
        !          3948: 
        !          3949: 
        !          3950: 
        !          3951: speed,kinematic,acceleration,constant,data
        !          3952: strings,angle,tension,frame,string
        !          3953: length,error,black,color,string,sun,image,loop
        !          3954: 
        !          3955: frictional,angle,parallel,body,force,magnitude,mass,constant,external,plane,velocity
        !          3956: length,error,color,string,black,image,loop
        !          3957: 
        !          3958: length,error,color,string,black,image,loop
        !          3959: 
        !          3960: heat,bioenergetics,energy,chemical,repulsion,work,gravity,electrostatic,enthalpy,molecules,states,water,electrons,electrical,direction,reaction,sunlight,negative,processes,entropy,potential,sun,plant,process
        !          3961: free,positive,bioenergetics,energy,negative,reactions,cell,water,gibbs,disorder
        !          3962: Gibb,s, energy,free,equilibrium,bioenergetics,energy,entropy,liquid,enthalpy,molecules,temperature,ice,states,water
        !          3963: co,free,bioenergetics,energy,carbon,chemical,yeast,reactions,ethanol,fermentation,entropy,bioreactions,glucose,process
        !          3964: 
        !          3965: 
        !          3966: exponential,integral,indefinite
        !          3967: exponential,integral,indefinite
        !          3968: exponential,integral,indefinite
        !          3969: exponential,integral,indefinite
        !          3970: exponential,integral,indefinite
        !          3971: int,exponential,integral,indefinite
        !          3972: exponential,number,definite,integral
        !          3973: exponential,number,definite,integral
        !          3974: exponential,number,definite,integral
        !          3975: exponential,number,definite,integral
        !          3976: exponential,number,definite,integral
        !          3977: exponential,integral, definite,area,curve
        !          3978: 
        !          3979: heat,energy,enthalpy,molecules,ice,water,free,melts,melt,processes,process
        !          3980: 
        !          3981: 
        !          3982: 
        !          3983: bioenergetics,energy,entropy,ice,liquid,melting,molecule,molecules,motion,solid,water
        !          3984: bioenergetics,energy,sugar,enthalpy,molecules,ice,water,gibbs,muscle,free,melt,processes,process,contraction
        !          3985: accelerates,speed
        !          3986: bioenergetics,energy,enthalpy,entropy,ice,melt,molecules,oc,process,temperature,water
        !          3987: bioenergetics,energy,entropy,fermentation,free,negative,positive,process,states
        !          3988: glass,interference,light,plate,plates,reflected,surface,thin,wavelength
        !          3989: growth,carbon,flow,light,photosynthesis,respiration,experiment,energy,cycle,water,co,plant
        !          3990: atom,energy,pathways,carbon,chemical,cycle,molecule,photosynthesis,matter,metabolism,cellular,io,respiration,pathway
        !          3991: differentiation,logarithmic,log,sqrt,derivative
        !          3992: timeline
        !          3993: um,thickness,conversion,number,unit
        !          3994: planet,phases
        !          3995: Planet,Phases
        !          3996: Planet,position,planet,phases
        !          3997: planetary,and,line,Orbital,position,planet,perpendicular,sky,positions,appearance,zenith,sun,image,counterclockwise
        !          3998: positions,and phases,earth,sun,phase
        !          3999: SS,orbits
        !          4000: SS,orbits
        !          4001: SS,orbits
        !          4002: SS,orbits
        !          4003: Periods,and,earth,orbit,planet,sizes,planets,laws,size,of,sun,significant,orbits,keplers,units
        !          4004: product,exponential,derivatives
        !          4005: exponential,product,derivatives
        !          4006: exponential,sinh,derivatives
        !          4007: exponential,sin,product,derivatives,cos
        !          4008: exponential,indefinite,integrals
        !          4009: exponential,indefinite,integrals
        !          4010: ellipses,kepler's laws
        !          4011: ellipses,kepler's laws
        !          4012: ellipses,kepler's laws
        !          4013: ellipses,kepler's laws
        !          4014: ellipses,kepler's laws
        !          4015: bioenergetics,burning,cells,energy,enthalpy,muscle,process,products,reactants,reaction
        !          4016: bioenergetics,cells,energy,enthalpy,entropy,favor,favorable,muscle,negative,process,processes,sugar
        !          4017: activation,amino,bioenergetics,body,chymotrypsin,collisions,energetics,energy,enzyme,enzymes,hydrolysis,protein,proteins
        !          4018: atp,bioenergetics,changes,delta,energy,enthalpy,entropy,hydrolysis,negative
        !          4019: accelerating
        !          4020: atp,bioenergetics,enthalpy,entropy,ho,hydrolysis,phosphate,products,reactants,reaction
        !          4021: angle,circular,coil,dipole,energy,external,field,force,formula,magnetic,magnitude,moment,plane,potential,radius,si,torque,units,work
        !          4022: atp,bioenergetics,energy,free,hydrolysis,muscle,reactions,water
        !          4023: distance,accelerates
        !          4024: elliptical,speed,motion,orbit,orbital,velocity,laws
        !          4025: freefall,speed
        !          4026: freefall
        !          4027: system,motion,orbital,sky,speed,focus,laws,solar,crossword,keplers,velocity
        !          4028: motion,in the solar system, kepler's laws
        !          4029: acceleration,distance,speed
        !          4030: 
        !          4031: motion,moving
        !          4032: size,drift,population,genetic
        !          4033: randomness,random,drift,randomly,genetic
        !          4034: random,mortality,drift,genetic
        !          4035: drift,probability,genetic
        !          4036: pattern,experiment,simulation,Weinberg,Hardy,drift,genetic,frequency
        !          4037: gene,flow, Hardy Weinberg,emigration,simulation,wave,square,immigration
        !          4038: Hardy,Weinberg,natural,selection,simulation,pressure,intensity
        !          4039: mutation,gene flow, genetic drift, Hardy Weinberg,natural,frequencies,selection,equilibrium,simulation,size,population,allele,random,genotype,frequency,mating,immigration
        !          4040: frequency,Hardy Weinberg,alleles,genetics,phenotype,gene,color,allele,genotype
        !          4041: objectives,objective, Hardy Weinberg
        !          4042: Hardy,Weinberg,alleles,allele,genotypes,genotype,frequency
        !          4043: Hardy,Weinberg,alleles,allele,frequency
        !          4044: evolution,Hardy Weinberg,alleles,allele,population,genotype,frequency
        !          4045: Hardy,Weinberg,frequencies,alleles,populations,individual,allele,population,frequency
        !          4046: Hardy,Weinberg,alleles,genetics,punnett,square
        !          4047: Hardy,Weinberg,frequencies,alleles,phenotype,punnett,square,genotypes,genotype
        !          4048: Hardy,Weinberg, gametes,frequencies,phenotype,allele,genetics,population,genotype,frequency
        !          4049: Hardy,Weinberg,frequencies,equilibrium,genetics,ideal,allele,weinberg,hardy,genotype
        !          4050: Hardy,Weinberg, gene flow, mutation, size,large,natural,frequencies,selection,equilibrium,gene,assumptions,mutations,population,random,flow,mating
        !          4051: prediction,Hardy Weinberg,frequencies,equilibrium,allele,evolution,genetics
        !          4052: Hardy,Weinberg, genetic drift
        !          4053: Hardy,Weinberg
        !          4054: Hardy,Weinberg, spiders
        !          4055: Hardy,Weinberg, punnett square, spiders
        !          4056: Hardy,Weinberg, punnett square, gametes
        !          4057: Hardy,Weinberg, punnett square, gametes
        !          4058: punnett,square, Hardy Weinberg, gametes
        !          4059: Hardy,Weinberg, punnett square, gametes
        !          4060: Hardy,Weinberg
        !          4061: Hardy,Weinberg
        !          4062: Hardy,Weinberg, population size, genetic drift, random, geese
        !          4063: Hardy,Weinberg
        !          4064: Hardy,Weinberg, spider, alleles, chromosomes
        !          4065: Hardy,Weinberg, spiders, alleles, chromosomes
        !          4066: Hardy,Weinberg, spiders, alleles, chromosomes
        !          4067: Hardy,Weinberg, spiders, alleles, chromosomes
        !          4068: Hardy,Weinberg, spider, population, allele frequency
        !          4069: Hardy,Weinberg, spider, alleles, chromosome
        !          4070: Hardy,Weinberg, population, allele frequency, spiders
        !          4071: Hardy,Weinberg, phenotypic frequency, population, spiders
        !          4072: Hardy,Weinberg, dinosaurs, phenotype
        !          4073: Weinberg,Hardy
        !          4074: frequencies,alleles,What,Weinberg,Hardy,allele,frequency
        !          4075: frequencies,alleles,What,Weinberg,Hardy,allele,frequency
        !          4076: Hardy,Weinberg,frequencies,alleles,genetics,frequency
        !          4077: frequencies,alleles,Weinberg,Hardy,allele,genetics,frequency
        !          4078: Hardy,Weinberg,alleles,genetics,frequency
        !          4079: frequencies,Weinberg,calculating,Hardy,allele,calculate
        !          4080: alleles,genotypes,ratio,genotypic,phenotypes,punnett,square,phenotypic
        !          4081: Hardy,Weinberg,frequencies,alleles,genotype,phenotype,genetics,frequency
        !          4082: Hardy,Weinberg,frequencies,number,phenotype,genetics,genotype
        !          4083: frequencies,equilibrium,allele,weinberg,hardy,genotype
        !          4084: Hardy,Weinberg,frequencies,genetics,allele,genotype,frequency
        !          4085: Hardy,Weinberg,frequencies,genetics,allele,genotype,frequency
        !          4086: emigration,simulation,gene,wave,Weinberg,Hardy,square,flow,immigration
        !          4087: natural,drift,frequencies,selection,equilibrium,simulation,gene,select,size,population,Weinberg,Hardy,allele,genetic,random,mutation,genotype,frequency,flow,mating,immigration
        !          4088: galaxy,image
        !          4089: galaxy,image
        !          4090: frequencies,alleles,phenotype,Weinberg,Hardy,punnett,allele,square,genotypes,genotype
        !          4091: galaxy,cluster- image
        !          4092: Galaxy,Cluster
        !          4093: Galaxy,Cluster - image
        !          4094: Weinberg,Hardy
        !          4095: Weinberg,Hardy,drift,genetic
        !          4096: Weinberg,Hardy
        !          4097: spiders,Weinberg,Hardy
        !          4098: Weinberg,punnett,spiders,Hardy,square
        !          4099: gametes,Weinberg,punnett,Hardy,square
        !          4100: gametes,Weinberg,Hardy,punnett,square
        !          4101: gametes,Weinberg,Hardy,punnett,square
        !          4102: gametes,Weinberg,Hardy,punnett,square
        !          4103: Weinberg,Hardy
        !          4104: geese,size,Weinberg,Hardy,random,drift,population,genetic
        !          4105: Weinberg,Hardy
        !          4106: alleles,Weinberg,Hardy,chromosomes,spider
        !          4107: alleles,spiders,Weinberg,Hardy,chromosomes
        !          4108: alleles,Weinberg,chromosomes,spiders,Hardy
        !          4109: alleles,spiders,Weinberg,Hardy,chromosomes
        !          4110: Weinberg,Hardy,allele,population,spider,frequency
        !          4111: alleles,Weinberg,Hardy,chromosome,spider
        !          4112: spiders,Weinberg,Hardy,allele,population,frequency
        !          4113: Weinberg,population,phenotypic,spiders,Hardy,frequency
        !          4114: phenotype,Weinberg,Hardy,dinosaurs
        !          4115: Weinberg,Hardy
        !          4116: 
        !          4117: 
        !          4118: 
        !          4119: derivative
        !          4120: indefinite,integrals
        !          4121: indefinite,integrals
        !          4122: integral,indefinite
        !          4123: integral,indefinite
        !          4124: integral,indefinite
        !          4125: indefinite,integrals
        !          4126: int,integral,indefinite
        !          4127: integral,indefinite
        !          4128: integral,definite
        !          4129: product,derivatives
        !          4130: integral,definite
        !          4131: integral,definite
        !          4132: integral,definite
        !          4133: area,curve
        !          4134: derivatives
        !          4135: product,rule,derivatives
        !          4136: derivative
        !          4137: derivatives
        !          4138: derivatives
        !          4139: product,rule,derivatives
        !          4140: differentiation,logarithmic,derivatives
        !          4141: 
        !          4142: 
        !          4143: 
        !          4144: 
        !          4145: 
        !          4146: 
        !          4147: 
        !          4148: 
        !          4149: 
        !          4150: 
        !          4151: 
        !          4152: 
        !          4153: 
        !          4154: bioenergetics,catalysis,enzyme,enzymes,favorable,fructose,glucose,molecule,positive,specific,sucrose,sugar
        !          4155: acids,amino,bioenergetics,chymotrypsin,enzyme,enzymes,protein,strain
        !          4156: acids,amino,bioenergetics,cartoon,catalyzes,chymotrypsin,enzyme,enzymes,molecule,protein,proteins
        !          4157: acid,amino,atp,bioenergetics,cells,disaccharide,enzyme,enzymes,fructose,glucose,protein,reaction,reactions,sucrose,sugar
        !          4158: int,indefinite,integrals
        !          4159: 
        !          4160: acid,adp,amino,atp,bioenergetics,biological,cell,cells,coupled,coupling,energy,entropy,favorable,glutamine,hydrolysis,molecule,molecules,reaction,reactions,unfavorable,work
        !          4161: actin,bioenergetics,contraction,energy,enthalpy,muscle,myosin
        !          4162: act,activity,allosteric,atp,bioenergetics,cells,energy,enzyme,enzymes,glucose,molecules,regulation
        !          4163: atp,bioenergetics,cell,components,enzymes,hydrolysis,ions,potassium,protein,pump,sodium,work
        !          4164: actin,bioenergetics,contraction,disorder,energy,fibers,molecules,muscle,myosin,process
        !          4165: activator,activity,bioenergetics,cell,changes,conformation,diagram,enzyme,glucose,glycogen,molecules,phosphorylase,phosphorylation,state
        !          4166: activation,bioenergetics,energy,enzymes,equivalent,favorable,original,questions,reactions,regulation
        !          4167: 
        !          4168: bioenergetics,carbon,energy,entropy,fermentation,liquid,molecule,molecules,number,process,speed,sugar
        !          4169: author,authors,coauthor,coauthors,construction,cstr,private
        !          4170: 
        !          4171: 
        !          4172: 
        !          4173: digits,number,numerical,response,significant,tolerance,units
        !          4174: 
        !          4175: concept,conceptual,dropdown,matching,option,options
        !          4176: addition,formula,image,string
        !          4177: construction,keywords,meta,public,publish,retrieve,version,versions
        !          4178: button,radio
        !          4179: 
        !          4180: radio,response
        !          4181: image,labeling,labels,random
        !          4182: role,roles
        !          4183: 
        !          4184: response,string
        !          4185: 
        !          4186: 
        !          4187: 
        !          4188: 
        !          4189: 
        !          4190: timeline,redone
        !          4191: 
        !          4192: 
        !          4193: 
        !          4194: 
        !          4195: bioenergetics,enthalpy,entropy,ice,water
        !          4196: 
        !          4197: protein,transmission,organelles,endoplasmic,structure,mitochondrion,organelle,reticulum,electron,transcription,dna,nucleus,atp
        !          4198: photosythetic,protein,cells,structure,organelle,cell,plant
        !          4199: algae,digest,vacuole,structure,golgi,mitochondrion,organelle,cell,nucleus
        !          4200: organelles,charged,structure,membranes,reactions,transport,organelle,biochemical,cell,molecules
        !          4201: rough,organelles,endoplasmic,animal,cells,structure,golgi,ribosomes,chloroplasts,reticulum,ideal,eukaryotic,cell,mitochondria
        !          4202: error,ohms,amperes,law,circuit,voltage,resistor
        !          4203: heat,error,dissipated,joules,energy,power,circuit,voltage,resistor
        !          4204: radius,error,number,magnet,unit,length,field,magnetic,ideal,gauss,units,solenoid
        !          4205: error,ohms,capacitance,constant,resistance,circuit
        !          4206: gas,thin,atp,mass,light,photosynthesis,energy,chemical,calvin,cycle,photo,soybean,co,structure,reactions,nadph,plant,process
        !          4207: co,components,energy,sunlight,chemical,calvin,reactions,power,cycle,light,chloroplasts,biochemical,photosynthesis,nadph,soybean,image,formula,atp
        !          4208: co,rubp,sounds,carbon,calvin,cycle,molecule,chloroplasts,chloroplast,photosynthesis,rubisco,molecules,substrate,ribulose
        !          4209: co,area,thylakoid,carbon,mesophyll,calvin,cycle,molecule,chloroplast,cell,photsynthesis,plant,membrane
        !          4210: biomolecules,calvin,product,nucleic,transport,cycle,carbohydrates,amino,biosynthesis,glucose,photosynthesis,acids,glycolysis,plant,carbohydrate
        !          4211: calvin,cycle,cellulose,biochemical,soybean,amino,glucose,cells,synthesis,reactions,photosynthesis,cell,acids,plant,acid,starch
        !          4212: number,biomolecules,energy,carbon,calvin,product,cycle,chloroplast,amino,biosynthesis,molecules,glucose,atp,photosynthesis,cell,acids,glycolysis,lipid,process
        !          4213: co,products,calvin,reactions,cycle,photosynthesis,nadph,nadp,molecules,water,reactants,glucose
        !          4214: 
        !          4215: 
        !          4216: 
        !          4217: 
        !          4218: 
        !          4219: 
        !          4220: 
        !          4221: 
        !          4222: Hawaii,life,energy,carbon,biotic,unit,isolated,processes,abiotic,matter,image,flow,process,cycles
        !          4223: biomass,plant,experiment,energy,molecules,metabolism,mass,organic,reactions,cell,food,respiration
        !          4224: results,biomass,radish,histogram
        !          4225: force,acceleration,mass
        !          4226: rubisco,photsynthesis
        !          4227: energy,calvin,cycle,molecule,molecules,phase,regeneration,photosynthesis
        !          4228: energy,carbon,calvin,product,regeneration,reactions,cycle,molecule,processes,light,carbohydrates,photosynthesis,nadph,molecules,atp
        !          4229: co,calvin,reactions,cycle,light,photosynthesis,nadp,molecules
        !          4230: experiment,carbon,calvin,reactions,cycle,light,photosynthesis,nadph,soybean,atp
        !          4231: 
        !          4232: 
        !          4233: 
        !          4234: 
        !          4235: lightbulb
        !          4236: continuously,time,Doubling,doubling,compounded,double
        !          4237: continuously,compounded interest,continuously,compounded
        !          4238: continuously,compounded interest,compounded,continuously,number,interest
        !          4239: compound,interest,compound,interest
        !          4240: C,14 dating,life,carbon,dating,disintegration,half,constant,formula
        !          4241: life,carbon,half,decay
        !          4242: base,b exponential ,derivatives
        !          4243: base,b exponential,derivatives
        !          4244: base,b exponential,derivatives
        !          4245: base,b logarithm,log,chain,derivatives
        !          4246: base,b logarithm,log,chain,derivatives
        !          4247: base,b logarithm, base-a exponential,log,chain,derivatives
        !          4248: first,order, separable  equation, initial value problem,
        !          4249: time,continuously,compounded,double
        !          4250: continuously,compounded,interest,accurate
        !          4251: annual,average,rate
        !          4252: deposit,annual,average,rate,compounded,amount,academic,interest,accurate
        !          4253: life,carbon,dating,disintegration,half,constant,accurate,radioactive
        !          4254: life,age,carbon,disintegrations,half,count,accurate,radioactive,decay
        !          4255: derivatives
        !          4256: derivatives
        !          4257: chain,derivatives
        !          4258: chain,rule,derivatives
        !          4259: log,chain,rule,derivatives
        !          4260: log,chain,rule,derivatives
        !          4261: log,chain,rule,derivatives
        !          4262: differentiation,chain,rule,logarithmic
        !          4263: differentiation,rule,product,logarithmic
        !          4264: differentiation,chain,product,logarithmic
        !          4265: differentiation,chain,product,logarithmic,rules
        !          4266: integral,indefinite
        !          4267: integral,indefinite
        !          4268: integral,indefinite
        !          4269: integral,indefinite
        !          4270: integral,indefinite
        !          4271: integral,indefinite
        !          4272: integral,indefinite
        !          4273: first,order,log
        !          4274: first,order
        !          4275: first,order,separation
        !          4276: first,order
        !          4277: first,order
        !          4278: first,order,general,differential,solution
        !          4279: first,order,growth,decay,logarithmic,differentiation
        !          4280: menu,review,homework
        !          4281: distance,graph,line,speed
        !          4282: 
        !          4283: 
        !          4284: rubp,phosphoglycerate,calvin,cycle,rubisco,photo,atp,photosynthesis,nadph,phosphorylated
        !          4285: 
        !          4286: 
        !          4287: 
        !          4288: 
        !          4289: 
        !          4290: 
        !          4291: 
        !          4292: 
        !          4293: masses,acceleration,forces,mass,light,pulley,accelerates,force,frictionless
        !          4294: forces,magnitude,acceleration,mass,force
        !          4295: magnitude,mass,law,net,gravitational,newtons,force,spherical
        !          4296: length,direction,position,color,string,pattern
        !          4297: 
        !          4298: length,string,angle,height,radius
        !          4299: 
        !          4300: length,direction,position,color,string,pattern
        !          4301: 
        !          4302: length,string,angle,height,force,radius
        !          4303: 
        !          4304: length,acceleration,string,angle,height,radius
        !          4305: 
        !          4306: length,string,angle,height,radius
        !          4307: 
        !          4308: length,string,angle,height,radius
        !          4309: 
        !          4310: length,string,sun,angle,height,phase,radius,rotation,image
        !          4311: 
        !          4312: length,error,color,string,black,image,loop
        !          4313: 
        !          4314: length,error,color,string,black,image,loop
        !          4315: 
        !          4316: length,direction,position,color,string,pattern
        !          4317: 
        !          4318: 
        !          4319: maximum,frictional,gravitational,accelerate,static,friction,incline,angle,force,block,component,plane
        !          4320: kinetic,friction,angle,speed,force,block,coefficient
        !          4321: motion,kinetic,static,friction,incline,angle,block,slides,plane
        !          4322: transport,pass,gradient,facilitated,passive,hydrolysis,membrane,hydrophobic,concentration,membranes,active,osmosis
        !          4323: equilibrium,balance,proteins,membrane,hypo,direction,cells,membranes,solution,cell,osmosisdiffusion,transport,gases,ions,molecules,water,hypotonic,specific,intracellular,image,isotonic
        !          4324: 
        !          4325: polar,positive,carbon,charge,molecule,atoms,molecules,water,electrons,hydrophobic,nonpolar,ch,charges,hydrogen,negative,lipids
        !          4326: 
        !          4327: 
        !          4328: 
        !          4329: frequencies,alleles,What,Weinberg,Hardy,allele,frequency
        !          4330: frequencies,Weinberg,genotype,Hardy,allele,genetics,frequency
        !          4331: frequencies,alleles,genetics,Weinberg,Hardy,allele,frequency
        !          4332: Galaxy,cluster image
        !          4333: galaxy,cluster - image
        !          4334: alleles,genotypic,phenotypes,punnett,allele,square,genotypes,ratio,phenotypic
        !          4335: frequencies,alleles,genetics,phenotype,Weinberg,Hardy,allele,genotype,frequency
        !          4336: frequencies,number,genetics,phenotype,Weinberg,Hardy,genotype
        !          4337: frequencies,equilibrium,allele,weinberg,hardy,genotype
        !          4338: frequencies,genetics,Weinberg,Hardy,allele,genotype,frequency
        !          4339: drift,pattern,experiment,simulation,Weinberg,Hardy,genetic,frequency
        !          4340: drift,size,population,genetic
        !          4341: drift,randomness,randomly,genetic,random
        !          4342: drift,mortality,genetic,random
        !          4343: drift,probability,genetic
        !          4344: natural,selection,simulation,select,Weinberg,Hardy,pressure,intensity
        !          4345: alleles,genetics,phenotype,gene,color,Weinberg,Hardy,allele,genetic,genotype,frequency
        !          4346: Weinberg,Hardy,objectives,objective
        !          4347: alleles,Weinberg,Hardy,allele,frequency
        !          4348: galaxy,mass - image
        !          4349: frequencies,alleles,populations,individual,population,Weinberg,Hardy,allele,frequency
        !          4350: alleles,genetics,Weinberg,Hardy,punnett,allele,square
        !          4351: frequencies,genetics,gametes,phenotype,population,Weinberg,Hardy,allele,genotype,frequency
        !          4352: frequencies,equilibrium,genetics,Weinberg,Hardy,ideal,allele,weinberg,hardy,genotype
        !          4353: large,natural,frequencies,selection,equilibrium,gene,assumptions,size,mutations,population,Weinberg,Hardy,random,mutation,flow,mating
        !          4354: frequencies,equilibrium,prediction,genetics,Weinberg,Hardy,allele,evolution
        !          4355: equilibrium,genetics,ideal
        !          4356: 
        !          4357: vesicles,transport,bilayer,molecules,proteins,water,membrane,vesicle,fluid,membranes,diffusion,volume,osmosis,phospholipid
        !          4358: body,cell,cellular,co,energy,food,ice,molecules,process,respiration
        !          4359: area,average,coil,cross,emf,field,frequency,generator,induced,magnetic,maximum,resistance,rotating
        !          4360: pi,atp,glycolysis,respiration
        !          4361: cells,cellular,glycolysis,nucleus,respiration
        !          4362: aerobic,anaerobic,cells,glycolysis,independent,molecules,nd,process
        !          4363: 
        !          4364: 
        !          4365: atp,carbohydrate,carbon,energy,food,glucose,glycolysis,molecule,stored,water
        !          4366: atp,carbon,glucose,glycolysis,half,molecules,nad,reactions,series
        !          4367: atp,glucose,glycolysis,half,molecule,molecules,nad
        !          4368: atp,carbon,glycolysis,half,nad,phosphate
        !          4369: atom,cellular,chemical,cycle,electron,electrons,energy,krebs,molecule,molecules,organic,picture,processes,product,respiration
        !          4370: 
        !          4371: 
        !          4372: acid,atoms,atp,carbon,cellular,co,cycle,krebs,organic,picture,reactions,respiration,series
        !          4373: 
        !          4374: 
        !          4375: 
        !          4376: 
        !          4377: atp,cellular,cycle,energy,glycolysis,krebs,molecules,respiration
        !          4378: angular,balls,charge,conservation,field,forces,length,light,magnetic,momentum,radius,rotates,thin,work
        !          4379: speed
        !          4380: angle,distance,direction,position
        !          4381: 
        !          4382: osmosis,diffusion,animation,image
        !          4383: length,significant,units,dimension,area,figure
        !          4384: figure,length,significant,units
        !          4385: data,denominator
        !          4386: velocity
        !          4387: vector,angle,degrees,speed,velocity
        !          4388: length,direction,position,color,string,pattern
        !          4389: 
        !          4390: length,direction,position,color,string,pattern
        !          4391: 
        !          4392: length,direction,position,color,string,pattern
        !          4393: 
        !          4394: length,direction,position,color,string,pattern
        !          4395: 
        !          4396: distance,kinetic,mass,friction,string,pulley,masses,speed,frictionless,block,surface
        !          4397: magnitude,mass,friction,accelerates,constant,net,speed,force,frictionless,plane
        !          4398: magnitude,kinetic,friction,momentum,angle,force,block,coefficient
        !          4399: length,work,string,height
        !          4400: 
        !          4401: length,string,sun,angle,height,phase,radius,image
        !          4402: 
        !          4403: kinetic,friction,energy,speed,water,mechanical,conservation,air
        !          4404: length,string,sun,angle,height,radius
        !          4405: 
        !          4406: length,string,height
        !          4407: 
        !          4408: length,string,sun,angle,height,phase,radius,image
        !          4409: 
        !          4410: length,string,angle,height,phase,radius,image
        !          4411: 
        !          4412: length,error,color,string,black,image,loop
        !          4413: 
        !          4414: gravitational,angle,height,degrees
        !          4415: kinetic,friction,energy,conservation,air,velocity
        !          4416: friction,incline,heat,energy,height,speed,mechanical,slides,plane
        !          4417: mass,friction,angle,degrees,speed,force,radius,slides
        !          4418: equilibrium,motion,distance,direction,acceleration,position,stored,constant,energy,height,gravity,compressed,earth,spring,conservation,surface,potential,velocity
        !          4419: minimum,frictional,forces,distance,work,kinetic,energy,force
        !          4420: gravitational,direction,acceleration,position,friction,field,speed,frictionless,wire,slides,plane,velocity
        !          4421: length,mass,constant,spring
        !          4422: 
        !          4423: 
        !          4424: Orbital,motion
        !          4425: Orbital,Motion
        !          4426: Orbital,Motion
        !          4427: Orbital,Motion
        !          4428: Orbital,Motion
        !          4429: Orbital,Motion
        !          4430: Orbital,Motion
        !          4431: Orbital,motion
        !          4432: s,motion,law,laws,gravity,Newton,speed,1,2,3
        !          4433: s,and,earth,motion,orbit,mass,orbital,laws,gravity,Newton,newtons,sun
        !          4434: galaxy,image
        !          4435: galaxy,image
        !          4436: galaxy,image
        !          4437: galaxy,image
        !          4438: masses,planetary,period,distance,newtons,satellite,earth,orbit,mass,planet,law,units
        !          4439: Binary,Star Masses,masses,earth,orbit,period,distance,mass,law,newtons,sun,units
        !          4440: masses,center,number,orbit,period,distance,mass,law,orbital,galaxy,newtons,speed
        !          4441: masses,number,of,picture,Clusters,average,mass,Galaxy,image
        !          4442: motion,period,mass,law,orbital,laws,gravity,newtons,speed,velocity,units
        !          4443: newton,s laws and measuring mass
        !          4444: cellular,chain,ec,electron,energy,man,power,respiration,roles,transport
        !          4445: cellular,chain,color,electron,electrons,energy,light,man,molecule,protein,respiration,transport
        !          4446: atp,cellular,chain,electron,energy,gradient,potential,power,protein,proton,protons,respiration,transport,water
        !          4447: atp,electron,energy,gradient,number,power,protons,respiration
        !          4448: maximum,area,length,square,percent
        !          4449: atp,balls,chain,cycle,electron,electrons,energy,gizmo,gradient,grating,hydrogen,ions,krebs,man,membrane,molecules,potential,power,protein,protons,respiration,series,transport,water
        !          4450: area,length,height,volume,constant,ratio
        !          4451: atp,cellular,chain,color,cross,diagram,electron,electrons,experiment,gradient,intensity,light,membrane,molecules,protons,respiration,transport
        !          4452: product,triangle,vectors,area
        !          4453: atp,cellular,chain,electron,electrons,molecule,protons,respiration,transport
        !          4454: atp,carbon,cellular,chain,cycle,diagram,electron,glycolysis,gradient,image,krebs,membrane,molecule,molecules,power,process,processes,proton,respiration,transport,water
        !          4455: atp,carbon,cells,cellular,chain,chemical,cycle,electron,energy,glucose,glycolysis,krebs,molecule,molecules,moles,power,processes,respiration,transport,water
        !          4456: atp,cellular,chain,co,electron,glucose,gradient,membrane,process,proton,reactions,respiration,series,transport
        !          4457: image
        !          4458: image
        !          4459: image
        !          4460: image
        !          4461: image
        !          4462: 
        !          4463: 
        !          4464: 
        !          4465: distance,water,velocity
        !          4466: angle,velocity
        !          4467: angle,velocity
        !          4468: carbon,decomposition,consumption,photosynthesis,cell,respiration,energy,cycle,cellular,co,chain,processes,conservation,io
        !          4469: carbon,cycle,processes
        !          4470: chain,derivative,rule
        !          4471: chain,derivative,rule
        !          4472: chain,derivative,rule
        !          4473: derivatives,rule,product
        !          4474: chain,derivative,rule
        !          4475: chain,derivative,rule
        !          4476: chain,derivative,rule
        !          4477: chain,derivative,rule
        !          4478: chain,derivative,rule
        !          4479: chain,derivative,rule
        !          4480: integral,indefinite
        !          4481: integral,indefinite
        !          4482: integral,indefinite
        !          4483: integral,indefinite
        !          4484: integral,indefinite
        !          4485: integral,indefinite
        !          4486: integral,indefinite
        !          4487: 
        !          4488: integral,indefinite
        !          4489: integral,indefinite
        !          4490: approximation,string,arc,pi,length,curve
        !          4491: approximation,curves,area
        !          4492: 
        !          4493: velocity
        !          4494: vector,angle,distance,position,displacement
        !          4495: 
        !          4496: 
        !          4497: 
        !          4498: 
        !          4499: 
        !          4500: 
        !          4501: 
        !          4502: 
        !          4503: co
        !          4504: Doppler,velocities,measure,doppler,light,measurements,lines,shift,velocity,spectrum,absorption
        !          4505: distance,brightness,stellar
        !          4506: electron
        !          4507: electron
        !          4508: electron
        !          4509: electron
        !          4510: electron
        !          4511: electron
        !          4512: electron
        !          4513: electron
        !          4514: electron
        !          4515: electron
        !          4516: 
        !          4517: slope,field, Euler method,vector,field,appoximate,solution
        !          4518: speed,velocity
        !          4519: angle,velocity
        !          4520: speed,water,velocity
        !          4521: notation,express,Scientific
        !          4522: integral,definite,int
        !          4523: length,direction,position,color,string,pattern
        !          4524: 
        !          4525: length,string,angle,height,radius
        !          4526: 
        !          4527: length,string,angle,height,radius
        !          4528: 
        !          4529: maximum,distance,work,kinetic,position,friction,constant,energy,speed,force,block,mechanical,dissipated,coefficient,spring,surface
        !          4530: distance,work,direction,mass,constant,product,force
        !          4531: distance,work,mass,friction,net,force,weight
        !          4532: frictional,average,power,engine,accelerates,inclined,rolling,energy,height,speed,conservation,air
        !          4533: friction,heat,energy,height,speed,mechanical,slides
        !          4534: length,string,height,phase,image
        !          4535: 
        !          4536: length,error,color,string,sun,black,image,loop
        !          4537: 
        !          4538: circular,friction,inclined,angle,speed,radius,curvature
        !          4539: length,string,angle,height,phase,radius,image
        !          4540: 
        !          4541: length,mass,light,constant,spring
        !          4542: graph,derivative,fx
        !          4543: blue,shift spectrum
        !          4544: blue,shift spectrum
        !          4545: blue,shift spectrum
        !          4546: red,shift spectrum
        !          4547: red,shift spectrum
        !          4548: red,shift spectrum
        !          4549: red,blue shift lab spectrum
        !          4550: star,radiation,kelvin,wavelength,laws,surface,temperature,colors,wein,steffanboltzmann
        !          4551: distance,Telescopes,telescope,power,wavelength,powers,units
        !          4552: Telescopes,telescope,Modern,wavelength,work
        !          4553: number,chemical,rna,dna,components,component,black,color
        !          4554: nucleotide,rna,mrna,dna,free,cells,nucleotides
        !          4555: rna,dna,direction,chain,gene,polymerase,transcript,transcription
        !          4556: 
        !          4557: product,rna,mrna,nucleotides,transcription
        !          4558: protein,direction,components,component,subunits,nucleotide,product,molecule,rna,molecules,proteins,transcription,dna
        !          4559: number,rna,proteins,mrna,dna,nucleotides,polymerase,transcription,process,nucleus
        !          4560: rna,proteins,dna,polymerase,transcription,nucleus
        !          4561: rna,proteins,dna,transcription
        !          4562: 
        !          4563: radiation,magnitude,temperatures,line,energy,distance,electromagnetic,velocities,black,color,telescope,kelvin,angular,wavelength,doppler,laws,photon,degrees,temperature,body,colors,velocity,frequency,spectrum,data,absorption
        !          4564: 
        !          4565: 
        !          4566: Distances,Telescopes,of,stars,Radiation
        !          4567: 
        !          4568: 
        !          4569: 
        !          4570: 
        !          4571: 
        !          4572: 
        !          4573: 
        !          4574: 
        !          4575: 
        !          4576: rna,proteins,dna,transcription
        !          4577: illustration,monster
        !          4578: illustration,monsters
        !          4579: transcription
        !          4580: illustration,monsters
        !          4581: chain,nucleotide,nucleotides,nucleic,acids
        !          4582: 
        !          4583: illustration
        !          4584: illustration,antiquity
        !          4585: rivinus
        !          4586: illustration,16th,century
        !          4587: 18th,19th,century
        !          4588: int,integral,indefinite
        !          4589: brunfels
        !          4590: cesalpin,cesalpino
        !          4591: de,Bary
        !          4592: gesner
        !          4593: 
        !          4594: hedwig
        !          4595: hofmeister
        !          4596: hales
        !          4597: theophrastus
        !          4598: plinius,secundus
        !          4599: fuchs
        !          4600: linne
        !          4601: linne
        !          4602: linne
        !          4603: linne
        !          4604: jungius
        !          4605: rajus,ray
        !          4606: tournefort
        !          4607: jussieu
        !          4608: grew
        !          4609: malpighi
        !          4610: vascular,radial,tissue,duct
        !          4611: vascular,radial,tissue,ducts
        !          4612: leeuwenhoeck
        !          4613: mirbel
        !          4614: mohl
        !          4615: schleiden
        !          4616: geli,n
        !          4617: strasburger
        !          4618: tissue,cellular
        !          4619: 
        !          4620: 
        !          4621: 
        !          4622: microscopes
        !          4623: antiquity,papyrus
        !          4624: 
        !          4625: dispersive,dna,semiconservative
        !          4626: dna,replication
        !          4627: dna,replication,parallel,antiparallel
        !          4628: 
        !          4629: 
        !          4630: 
        !          4631: 
        !          4632: 
        !          4633: fork,lagging,okazaki,leading,rna,primers,diagram,fragments,dna,primer,strand,single,replication
        !          4634: 
        !          4635: 
        !          4636: degrees,earth,gases,kinetic,molecules,speed,temperature,velocity
        !          4637: 
        !          4638: 
        !          4639: cystic,proteins,membrane,mrna,cftr,dna,cf,translation,protein,lung,gene,transcript,lungs,osmosis,fibrosis,transcription
        !          4640: nucleotide,rna,proteins,mrna,dna,translation,direction,specific,nucleotides,gene,polymerase,image,transcription,process
        !          4641: chemical,nucleic,transport,structural,rna,amino,molecules,proteins,dna,translation,components,cells,structure,acids,nucleus
        !          4642: amino,proteins,mrna,translation,nucleotides,acids,practice,genetic,image,acid
        !          4643: MK,class
        !          4644: MK,Class
        !          4645: MK,class
        !          4646: amino,proteins,translation,genetic,acid
        !          4647: length,amino,proteins,mrna,translation,chain,position,acids,genetic,acid
        !          4648: nucleotide,product,structural,amino,proteins,lines,translation,protein,specific,gene,genetic,image,acid,process
        !          4649: cystic,polypeptide,proteins,cftr,chaperone,cf,translation,protein,chaperones,er,proteosomes,chime,ribosome,fibrosis,folding,peptide
        !          4650: work,amino,proteins,mrna,dna,translation,chain,specific,structure,position,nucleotides,gene,acids,genetic,acid
        !          4651: derivatives
        !          4652: derivative
        !          4653: derivatives
        !          4654: derivative
        !          4655: derivative,chain,rule
        !          4656: quotient,product,chain,rule,derivatives
        !          4657: inverse,hyperbolic,chain,rule,derivatives
        !          4658: power,rule,derivatives
        !          4659: rule,power,derivatives
        !          4660: inverse,hyperbolic cosine,coshx,derivatives
        !          4661: ArcTanh,u),rule,product,derivatives
        !          4662: inverse,hyperbolic secant,chain,derivatives,rule
        !          4663: chain,rule,derivatives
        !          4664: chain,rule,derivatives
        !          4665: product,rule,derivatives
        !          4666: chain,rule,derivatives,determine
        !          4667: hyperbolic,integral,indefinite
        !          4668: hyperbolic,integral,indefinite
        !          4669: integral,indefinite
        !          4670: integral,indefinite
        !          4671: integral,indefinite
        !          4672: integral,indefinite,hyperbolic
        !          4673: integral,indefinite,hyperbolic,functions
        !          4674: integral,indefinite,hyperbolic
        !          4675: integral,indefinite
        !          4676: integral,indefinite
        !          4677: differentiation,log,functions,int,integral,indefinite,inverse,derivatives,trig
        !          4678: length,approximation,pi,multiplication,hyperbolic,string,calculator,symbols,trig
        !          4679: positive,negative,roots,quadratic,inverse,hyperbolic,function
        !          4680: hyperbolic,negative,definition,multipart,positive,roots,function,inverse
        !          4681: 
        !          4682: 
        !          4683: 
        !          4684: 
        !          4685: area,coefficient,cross,degrees,flow,heat
        !          4686: angle,length,height,radius,string
        !          4687: 
        !          4688: positive,ball,distance,work,gravity,speed,force,negative
        !          4689: equilibrium,frictional,forces,energy,distance,work,force,block,formula,compressed,kinetic,mass,position,friction,spring,surface,constant,velocity
        !          4690: 
        !          4691: net,addition,speed,acceleration,mass,power,friction,engine,air,accelerates,resistance
        !          4692: fragments,dna,replication,ligase,okazaki,fragment
        !          4693: frictional,distance,magnitude,mass,angle,force
        !          4694: angle,length,height,phase,radius,string,image
        !          4695: 
        !          4696: length,height,work,phase,string,image
        !          4697: 
        !          4698: Okazaki,pol,rna,dna,polymerase,replication,primer,component
        !          4699: center,distance,length,thin,plate,circular,mass,density,plates,radius
        !          4700: thin,mass,linear,density
        !          4701: center,distance,height,plate,mass
        !          4702: molecule,work,dna,origin,chromosome,replication,bubble,helix,process
        !          4703: 
        !          4704: deoxynucleotide,deoxyribonucleoside,dna,helicase,ligase,pol,polymerase,protein,replication,ribonucleoside
        !          4705: translation,protein,component,polymerase,nucleic,molecule,linear,rna,amino,genetic,ribosome,proteins,acid,nucleus
        !          4706: translation,specific,molecule,acids,amino,genetic,proteins,mrna,acid
        !          4707: nucleotide,addition,amino,proteins,mrna,dna,translation,genetic,transcription,acid
        !          4708: genetic
        !          4709: genetic,image
        !          4710: body
        !          4711: kg,acceleration,mass,force
        !          4712: MK,class
        !          4713: acceleration,motion,mass,force
        !          4714: heavy,conservative,meselson,molecules,dna,cells,light,dispersive,density,stahl,solution,semiconservative,replication
        !          4715: acceleration,mass,height,force,frictionless
        !          4716: kg,angle,mass,force,tension
        !          4717: magnitude,angle,net,force
        !          4718: 
        !          4719: maximum
        !          4720: 
        !          4721: gas,equilibrium,number,energy,chemical,cycle,gravitational,gravity,diagram,temperature,pressure,radius,chain,mass,position,nuclear,atomic,conversion,surface,sun
        !          4722: gas,equilibrium,momentum,energy,field,angular,transport,gravitational,fields,wavelengths,diagram,temperature,pressure,dissipated,components,reactions,magnetic,nuclear,medium
        !          4723: maximum,exam
        !          4724: 
        !          4725: temperatures,fields,degrees,activity,earth,magnetic,nuclear,surface,sun,physics,significant
        !          4726: maximum,center,motion,period,distance,orbital,components,orbit,mass,law,data,masses,doppler,newtons,structure,velocities,separation
        !          4727: distance,diagram,satellite,temperature,magnitude,modulus,color,data
        !          4728: masses,diagram,temperature,radius,structure,mass,power,density,surface
        !          4729: masses,gas,temperatures,heat,momentum,energy,angular,gravitational,mass,nuclear
        !          4730: photons,heat,line,energy,electromagnetic,wavelength,molecule,atoms,molecules,temperature,body,electrons,collisions,thermal,atom,radiation,black,power,light,external,intensity,spectrum
        !          4731: line,chemical,wavelength,temperature,body,absorption,earth,hydrogen,intensities,black,color,spectrum
        !          4732: 
        !          4733: photons,gravity,wavelengths,instruments,light,lenses,data
        !          4734: 
        !          4735: 
        !          4736: 
        !          4737: 
        !          4738: 
        !          4739: 
        !          4740: 
        !          4741: 
        !          4742: 
        !          4743: 
        !          4744: 
        !          4745: 
        !          4746: 
        !          4747: 
        !          4748: 
        !          4749: 
        !          4750: 
        !          4751: 
        !          4752: 
        !          4753: 
        !          4754: 
        !          4755: 
        !          4756: 
        !          4757: 
        !          4758: 
        !          4759: 
        !          4760: gene,genetics,meiosis
        !          4761: experiment,angle,mass,friction,parallel,inclined,force,plane
        !          4762: 
        !          4763: 
        !          4764: 
        !          4765: 
        !          4766: 
        !          4767: 
        !          4768: 
        !          4769: 
        !          4770: 
        !          4771: 
        !          4772: 
        !          4773: 
        !          4774: 
        !          4775: 
        !          4776: 
        !          4777: 
        !          4778: 
        !          4779: 
        !          4780: 
        !          4781: 
        !          4782: 
        !          4783: 
        !          4784: 
        !          4785: 
        !          4786: 
        !          4787: 
        !          4788: 
        !          4789: 
        !          4790: calvin,cycle,membrane,adp,atp,co,reactions,light,photosynthesis,nadph,ho,nadp,process
        !          4791: 
        !          4792: 
        !          4793: 
        !          4794: 
        !          4795: 
        !          4796: 
        !          4797: 
        !          4798: 
        !          4799: 
        !          4800: 
        !          4801: 
        !          4802: 
        !          4803: 
        !          4804: 
        !          4805: 
        !          4806: 
        !          4807: 
        !          4808: 
        !          4809: 
        !          4810: 
        !          4811: 
        !          4812: 
        !          4813: 
        !          4814: 
        !          4815: 
        !          4816: 
        !          4817: 
        !          4818: 
        !          4819: 
        !          4820: 
        !          4821: 
        !          4822: 
        !          4823: 
        !          4824: 
        !          4825: 
        !          4826: 
        !          4827: 
        !          4828: 
        !          4829: 
        !          4830: 
        !          4831: 
        !          4832: 
        !          4833: 
        !          4834: 
        !          4835: 
        !          4836: 
        !          4837: 
        !          4838: 
        !          4839: 
        !          4840: 
        !          4841: 
        !          4842: 
        !          4843: 
        !          4844: 
        !          4845: 
        !          4846: 
        !          4847: 
        !          4848: 
        !          4849: 
        !          4850: 
        !          4851: 
        !          4852: 
        !          4853: 
        !          4854: 
        !          4855: 
        !          4856: 
        !          4857: capa,density,Express,Answer
        !          4858: 
        !          4859: 
        !          4860: 
        !          4861: si,unit,temperature,units
        !          4862: 
        !          4863: 
        !          4864: 
        !          4865: 
        !          4866: si,unit,units,derived
        !          4867: 
        !          4868: 
        !          4869: 
        !          4870: 
        !          4871: 
        !          4872: 
        !          4873: 
        !          4874: 
        !          4875: 
        !          4876: 
        !          4877: 
        !          4878: 
        !          4879: 
        !          4880: 
        !          4881: 
        !          4882: 
        !          4883: 
        !          4884: 
        !          4885: 
        !          4886: 
        !          4887: 
        !          4888: 
        !          4889: 
        !          4890: 
        !          4891: 
        !          4892: 
        !          4893: 
        !          4894: 
        !          4895: 
        !          4896: 
        !          4897: 
        !          4898: 
        !          4899: 
        !          4900: 
        !          4901: 
        !          4902: 
        !          4903: 
        !          4904: 
        !          4905: 
        !          4906: 
        !          4907: 
        !          4908: 
        !          4909: 
        !          4910: 
        !          4911: 
        !          4912: 
        !          4913: 
        !          4914: 
        !          4915: 
        !          4916: 
        !          4917: 
        !          4918: 
        !          4919: 
        !          4920: 
        !          4921: 
        !          4922: 
        !          4923: angle,degrees,perpendicular,pythagorean,ratio
        !          4924: pi,volume,radius,sphere,mass,planet,spherical,area,surface
        !          4925: monopodium,sympodium,pleiochasium
        !          4926: egg,petal,sepal,receptacle,stigma,secondary,cell,germinating,nucleus,style,pollen,anther,staminode,embryo,stamen,sac,ovary,filament
        !          4927: 
        !          4928: lysicarpous,apocarpous,syncarpous,paracarpous
        !          4929: root,roots,quadratic,extremum
        !          4930: epigyneous,hypogyneous,perigyneous
        !          4931: bostryx,head,pleiochasium,dichasium
        !          4932: spike,raceme,cob,corymb,panicle,umbel,head
        !          4933: 
        !          4934: 
        !          4935: 
        !          4936: 
        !          4937: 
        !          4938: kg,acceleration,kinetic,mass,coefficient,friction,surface,force,block
        !          4939: magnitude,center,position,diagram,sun
        !          4940: equilibrium,energy,gravitational,gravity,sun,pressure
        !          4941: mass,sun
        !          4942: radius,area,distance,mass,position,chemical,color,surface,diagram,temperature
        !          4943: orbital,earth
        !          4944: chemical,hydrogen,sun
        !          4945: energy,gravity,balance,temperature,pressure
        !          4946: life
        !          4947: carbon,dioxide, CO2, Mauna Loa
        !          4948: black,nuclear
        !          4949: coordinate,components,vector,distance,coordinates
        !          4950: kinetic,angle,mass,friction,accelerates,inclined,plane,block
        !          4951: gas,hydrogen,carbon,medium
        !          4952: gravity,balance,temperature,pressure,mass,reactions,nuclear,sun
        !          4953: diagram,temperature
        !          4954: radius,density
        !          4955: 
        !          4956: CO2,carbon dioxide,atmospheric,global,temperature,graph
        !          4957: 
        !          4958: cycle,cdk,cyclin,cell,mutation,dna
        !          4959: 
        !          4960: cells,cycle,cyclin,separation,chromosome,cell,wee,mutation,dna
        !          4961: cells,growth,cycle,cyclin,microtubule,mitotic,action,cell,spindle,phase,dna
        !          4962: growth,cycle,cells,cell
        !          4963: cycle,proteins,ratio,phase,dna,activity,cell,image
        !          4964: tissue,sugar,proteins,osmolarity,cells,position,callus,small,photosynthesis,cell,aerenchyma,osmotic,star,molarity,turgor,storage,stem,macromolecules,parenchyma,molecules,pressure,water,ground,depot,botany,mesophyll,calli,meristem,starch
        !          4965: cycle,molecule,molecules,phase,cells,cell
        !          4966: experiment,cycle,ac,molecules,phase,atp,induced,cells,reversible,cell,data
        !          4967: 
        !          4968: 
        !          4969: cycle,biochemical,molecules,proteins,dna,protein,cells,reactions,cell,image,process
        !          4970: cycle,phase,cells,cell
        !          4971: cycle,plate,phase,cells,cell
        !          4972: cycle,plate,phase,cells,cell
        !          4973: phosphorylase,kinase,glycogen,phosphodiesterase,epinephrine,phosphatase,atp,phosphate
        !          4974: cycle,phase,cells,cell
        !          4975: conic,quadratic,discriminant,rotation,graph
        !          4976: conics,discriminant,rotation,graph,quadratics,transformation
        !          4977: conics,and,quadratics,conic,quadratic,discriminant,rotation,graph
        !          4978: polar,representation,ti
        !          4979: 
        !          4980: 
        !          4981: 
        !          4982: binary,light,stars,velocity,spectrum,curve
        !          4983: binary,light,stars,velocity,spectrum,curve
        !          4984: binary,stars spectrum light velocity curve
        !          4985: binary,stars spectrum light velocity curve
        !          4986: binary,stars spectrum light velocity curve
        !          4987: binary,stars spectrum light velocity curve
        !          4988: binary,stars spectrum light velocity curve
        !          4989: binary,stars spectrum light velocity curve
        !          4990: binary,stars spectrum light velocity curve
        !          4991: binary,stars spectrum light velocity curve
        !          4992: binary,stars spectrum light velocity curve
        !          4993: binary,stars spectrum light velocity curve
        !          4994: binary,stars spectrum light velocity curve
        !          4995: binary,stars spectrum light velocity curve
        !          4996: binary,stars spectrum light velocity curve
        !          4997: binary,stars spectrum light velocity curve
        !          4998: MK,class
        !          4999: MK,class
        !          5000: MK,class
        !          5001: MK,class
        !          5002: MK,class
        !          5003: MK class
        !          5004: MK,class - original
        !          5005: MK,class
        !          5006: MK,class
        !          5007: astronomy,MK class
        !          5008: MK,class
        !          5009: MK,class
        !          5010: Emission,Line spectrum
        !          5011: Emission,Line spectrum
        !          5012: Emission,Line spectrum
        !          5013: Emission,Line spectrum
        !          5014: Emission,Line spectrum
        !          5015: Emission,Line spectrum
        !          5016: Emission,Line spectrum
        !          5017: astronomy,Emission Line spectrum
        !          5018: Emission,Line spectrum
        !          5019: Emission,Line spectra,Line,Emission,Spectra
        !          5020: star,image
        !          5021: star,image
        !          5022: star,image
        !          5023: star,image
        !          5024: star,image
        !          5025: star,image
        !          5026: star,image
        !          5027: star,image
        !          5028: parallexes,spectroscopic
        !          5029: parallex,spectroscopic
        !          5030: spectroscopic,parallex
        !          5031: spectroscopic,parallex
        !          5032: spectroscopic,parallex
        !          5033: spectroscopic,parallex
        !          5034: spectroscopic,parallex
        !          5035: spectroscopic,parallex
        !          5036: masses,of stars
        !          5037: masses,of stars
        !          5038: masses,of stars
        !          5039: masses,of stars
        !          5040: masses,of stars
        !          5041: masses,of stars
        !          5042: reference,line,chemical,atoms,spectrum
        !          5043: line,lab,video,ideal,image,lines,spectrum,data,absorption
        !          5044: direction,orbit,distance,displacement,image,plane
        !          5045: magnitude,modulus,distance,color,diagram
        !          5046: masses,center,period,mass,velocities,orbital,doppler,separation,velocity
        !          5047: atoms,atp,carbon,cellular,chain,co,conversion,cycle,diagram,electron,glucose,glycolysis,gradient,image,krebs,molecule,molecules,net,power,process,processes,protons,reactions,respiration,transport,version
        !          5048: energy,yeast,net,anaerobic,molecules,glucose,atp,co,cells,fermentation,sound,constant,glycolysis,nad,acid,process
        !          5049: 
        !          5050: 
        !          5051: 
        !          5052: Properties,of spectra and stars
        !          5053: 
        !          5054: 
        !          5055: 
        !          5056: 
        !          5057: 
        !          5058: 
        !          5059: masses,center,distance,atoms,temperature,lines,magnitude,modulus,structure,mass,atomic,velocity,data
        !          5060: 
        !          5061: 
        !          5062: 
        !          5063: 
        !          5064: kg,coefficient,friction,accelerates,force
        !          5065: 
        !          5066: 
        !          5067: 
        !          5068: 
        !          5069: 
        !          5070: 
        !          5071: 
        !          5072: 
        !          5073: 
        !          5074: 
        !          5075: 
        !          5076: 
        !          5077: 
        !          5078: 
        !          5079: 
        !          5080: 
        !          5081: 
        !          5082: 
        !          5083: 
        !          5084: 
        !          5085: 
        !          5086: 
        !          5087: 
        !          5088: 
        !          5089: 
        !          5090: 
        !          5091: 
        !          5092: microscopy,longitudinal,section,scanning,electron
        !          5093: acridinorange,cuticle,fluorescence,microscopy,staining
        !          5094: cuticle,cross,section
        !          5095: cuticle,cross,section
        !          5096: 
        !          5097: kg,angle,mass,newtons,force,tension,wire
        !          5098: angle,line,tension,wire
        !          5099: kg,positive,motion,diagram,acceleration,negative,coefficient,friction,surface
        !          5100: kg,mass,net,accelerates,speed,force
        !          5101: magnitude,experiment,equilibrium,position,string,force,weight
        !          5102: botany,mesophyll,leaf
        !          5103: 
        !          5104: 
        !          5105: botany
        !          5106: botany
        !          5107: 
        !          5108: 
        !          5109: 
        !          5110: 
        !          5111: 
        !          5112: emf,induced,magnitude,direction,law,field,magnetic,perpendicular,flux,conducting,plane,Faraday,loop
        !          5113: 
        !          5114: 
        !          5115: ions,receptor,phosporylation,diacylglycerol,signaling,ligand,cell,neurotransmitter,glycolysis
        !          5116: botany
        !          5117: phosphorylase,glycogen,gtp,epinephrine,gprotein,signals,phosphatase,glucose,cholera,phosophodiesterase,gtpase,pathway
        !          5118: 
        !          5119: botany
        !          5120: 
        !          5121: 
        !          5122: length,string,sun,angle,height,radius
        !          5123: 
        !          5124: length,string,angle,height,radius
        !          5125: 
        !          5126: minimum,maximum,motion,forces,distance,work,acceleration,average,mass,constant,units,momentum,energy,speed,force,conservation,external,weight
        !          5127: strings,length,bullet,tension,conserved,light,constant,units,momentum,angle,energy,height,degrees,speed,force,block,mechanical,collision
        !          5128: impulse,free,momentum,water
        !          5129: motion,distance,moment,work,solid,direction,acceleration,average,kinetic,negative,law,positive,energy,newtons,speed,force
        !          5130: ball,impulse,magnitude,acceleration,vector,average,mass,constant,momentum,speed,body,balls
        !          5131: forces,direction,mass,elastic,conserved,cart,momentum,speed,linear,external,collision
        !          5132: motion,ball,collide,mass,elastic,speed,rotational,collision
        !          5133: motion,angular,acceleration,engine,accelerates,constant,angle,angles,rotational,linear,rotating,velocity
        !          5134: angular,acceleration,accelerates,linear,rotation,velocity
        !          5135: irregular,center,moment,mass,parallel,inertia
        !          5136: length,work,string,height
        !          5137: 
        !          5138: length,work,string,height,phase,image
        !          5139: 
        !          5140: moment,plate,mass,density,height,inertia,surface
        !          5141: substituion,integral
        !          5142: int,rule,substituion,power,integral
        !          5143: identity,int,rule,substituion,power,integral
        !          5144: int,substituion,integral
        !          5145: identity,substitution
        !          5146: substituion,square,splitting
        !          5147: identity,inverse,derivatives,substitution
        !          5148: int,squares,completion,integral,square
        !          5149: int,rule,squares,power,integral,dividing,denominator
        !          5150: int,integral,substitution
        !          5151: substituion,integral
        !          5152: substitution
        !          5153: 
        !          5154: integrand,int,identities,expand
        !          5155: identities,substitution
        !          5156: substitution
        !          5157: substitution
        !          5158: substitution
        !          5159: int,substituion,integral
        !          5160: identity,substituion,integral
        !          5161: 
        !          5162: substitution
        !          5163: identity,int,substituion,integral
        !          5164: identity,int,substituion,integral
        !          5165: evaluate,identities,substitution
        !          5166: int,rule,substituion,power,integral
        !          5167: 
        !          5168: 
        !          5169: 
        !          5170: angle,mass,diagram,tension,block
        !          5171: angle,friction,parallel,inclined,force,plane,incline,weight
        !          5172: phosphorylase,kinase,glycogen,phosphodiesterase,epinephrine,camp,receptor,metabolism,phosphatase,cell
        !          5173: protein,camp,receptor,gprotein,proteins,phosphorylates
        !          5174: botany
        !          5175: systems,information,campus,botany
        !          5176: botany
        !          5177: botany
        !          5178: kinase,channels,ion,conformational,receptors,cyclase,dimerization,adenylyl,phospholipase
        !          5179: kinase,calmodulin,messenger,signaling,phosopholipase,transcription
        !          5180: calmodulin,protein,calcium,ion,phosopholipase,ligand,ions,receptor,gprotein,proteins,ip,membrane,phospholipid,ca
        !          5181: 
        !          5182: kinase,phosphodiesterase,receptor,gprotein,effector,protein,ligand,gtpase,pathway,phosphorylates
        !          5183: calmodulin,kinase,messenger,signaling,phosopholipase,phosphatases,membrane,transcription
        !          5184: kinase,receptor,gprotein,receptors,ca,calmodulin,protein,dag,phospholipase,ip,phospholipid
        !          5185: botany
        !          5186: polar,and,integration,area,ti,graph
        !          5187: and,area,integration,graph
        !          5188: botany
        !          5189: botany
        !          5190: ion,receptor,receptors,ligand,dimerization,adenylyl,phospholipase,ip,autophosphorylation
        !          5191: acceleration,vector,motion,forces,kinetic,static,inertia,mass,net,friction,parallel,force,weight
        !          5192: 
        !          5193: allies,bryohytes,fern,plant,vascular
        !          5194: 
        !          5195: 
        !          5196: 
        !          5197: block
        !          5198: root,cross-section,botany
        !          5199: cell,cells,chain,chromosomes,deoxyribonucleic,dna,genetic,meselsonstahl,process,protein,replication,series,structure
        !          5200: proteins,dna,pneumonia,genetic,replication
        !          5201: 
        !          5202: 
        !          5203: 
        !          5204: 
        !          5205: 
        !          5206: 
        !          5207: 
        !          5208: 
        !          5209: 
        !          5210: 
        !          5211: 
        !          5212: 
        !          5213: 
        !          5214: 
        !          5215: 
        !          5216: 
        !          5217: 
        !          5218: 
        !          5219: 
        !          5220: 
        !          5221: 
        !          5222: nucleotide,dna,cells,data,specific,structure,genetic,acid
        !          5223: 
        !          5224: 
        !          5225: 
        !          5226: 
        !          5227: experiment,limitations,synthesis,enzymes,telomerase,structure,polymerase,meselsonstahl,mechanism,telomere,cell,semiconservative,enzyme,dna,replication
        !          5228: ori,length,yeast,speed,proteins,dna,circular,protein,specific,origin,separation,chromosome,bacteria,loop,process
        !          5229: 
        !          5230: 
        !          5231: 
        !          5232: 
        !          5233: 
        !          5234: 
        !          5235: 
        !          5236: 
        !          5237: 
        !          5238: component,nucleotide,polymerase,strand,nucleoside,dna
        !          5239: 
        !          5240: 
        !          5241: 
        !          5242: 
        !          5243: 
        !          5244: 
        !          5245: 
        !          5246: 
        !          5247: rna,dna,primosomes,nucleotides,polymerase,primosome,okazaki,fragment,enzymes,strand
        !          5248: 
        !          5249: botany
        !          5250: 
        !          5251: messenger,phosphodiesterase,ligand,adenylyl,gprotein,gtpase
        !          5252: kinase,phosphotase, dimerization, ligand, receptor
        !          5253: MK,spectral classification
        !          5254: Lecythis,ustinata
        !          5255: Aeonium,tabuliformae
        !          5256: Gentiana,germanica or aspera
        !          5257: integration,parts
        !          5258: integration,parts
        !          5259: reduction,integration
        !          5260: integration,parts
        !          5261: integration,parts
        !          5262: 
        !          5263: integration,parts
        !          5264: power,reduce,substitutions,int,integration,sequence
        !          5265: int,power,integration,reduce
        !          5266: integration
        !          5267: reduction,formula
        !          5268: formula,reduction
        !          5269: trigonometric,substitutions
        !          5270: int,integration,parts,area,graph
        !          5271: solid,bounded,string,volume,graph,exponentiation
        !          5272: substitution,trigonometric
        !          5273: identity,substitution,trigonometric
        !          5274: substitution,trigonometric
        !          5275: identity,substitution,trigonometric
        !          5276: mathematica,decomposition,partial
        !          5277: fractions,partial
        !          5278: fractions,partial
        !          5279: fractions,partial
        !          5280: fractions,partial
        !          5281: parts,Integration
        !          5282: sequence,int,power,integration,reduce
        !          5283: 
        !          5284: 
        !          5285: average,data,energy,gas,ideal,kinetic,mole,molecule,molecules,moles,number,temperature
        !          5286: 
        !          5287: 
        !          5288: 
        !          5289: DNA,animation,replication
        !          5290: DNA,replication, polymerase
        !          5291: 
        !          5292: strings,forces,thin,tension,acceleration,friction,masses,body,force,surface,newton
        !          5293: oswald,rockefeller,pneumococcus,dna,institute,pneumonia,infection,lobar,avery,respiration
        !          5294: 
        !          5295: 
        !          5296: 
        !          5297: alleles,chromosome,genetics
        !          5298: 
        !          5299: 
        !          5300: 
        !          5301: 
        !          5302: 
        !          5303: alleles,cell,cells,chromosome,gamete,gene,law,mendel,plant,segregation,sex
        !          5304: electric,magnitude,direction,positive,charges,negative,field,charge,force,plane,lines
        !          5305: 
        !          5306: error,black,color,length,string,sun,image,loop
        !          5307: circuit,resistors,rc,electrical,emf,charged,negative,power,resistance,batteries,dissipated,ev,battery
        !          5308: 
        !          5309: 
        !          5310: length,error,black,color,string,sun,image,loop
        !          5311: length,height,error,black,color,engine,string,image,loop
        !          5312: streptococcus,pathogenic,dna,fred,griffiths,capsule,pneumonia,lobar,avery,rough,oswald,coat,strain,griffith,smooth,surface,polysaccharide
        !          5313: length,height,error,black,color,engine,string,sun,image,loop
        !          5314: length,height,error,black,color,engine,string,sun,image,loop
        !          5315: error,black,color,length,height,engine,string,sun,image,loop
        !          5316: error,black,color,length,height,engine,string,sun,image,loop
        !          5317: error,black,color,length,height,engine,string,sun,image,loop
        !          5318: error,black,color,length,height,engine,string,sun,image,loop
        !          5319: error,black,color,length,height,engine,string,sun,image,loop
        !          5320: error,black,color,length,height,engine,string,sun,image,loop
        !          5321: streptococcus,pathogenic,dna,fred,griffiths,transformed,pneumonia,transformation,replication,coat,griffith,polysaccharide,transforming
        !          5322: error,black,color,length,height,engine,string,sun,image,loop
        !          5323: polar,plot
        !          5324: 
        !          5325: 
        !          5326: elastic,energy,metal,modulus,ratio,strain,surface,volume
        !          5327: 
        !          5328: 
        !          5329: gas,molecules,weight
        !          5330: oswald,reference,coated,bacterium,lombar,institute,pneumonia,diphtheria,work,sugar,avery,rockefeller,sugarcoated,body,pneumococcus,dna,process
        !          5331: 
        !          5332: 
        !          5333: 
        !          5334: dna,fred,principle,griffith,pneumonia,transforming,bacteria,replication
        !          5335: 
        !          5336: 
        !          5337: 
        !          5338: molecule,proteins,mccarty,dna,cell,avery,subunits,cellular,deoxyribonucleic,reactions,genetic,macleod,acid
        !          5339: growth,meselson,dna,cells,light,dispersive,density,semiconservative,replication,pattern,experiment,molecules
        !          5340: hershey,chase,proteins,dna,sulfer,replication,phosphorus,genetic,radioactive
        !          5341: molecule,pneumococcus,dna,cells,transforming,genetic,radioactive
        !          5342: 
        !          5343: 
        !          5344: distance,thin,magnitude,mass,density,graph,force,linear
        !          5345: distance,thin,magnitude,mass,density,graph,force,chain,linear
        !          5346: 
        !          5347: 
        !          5348: 
        !          5349: 
        !          5350: 
        !          5351: 
        !          5352: 
        !          5353: 
        !          5354: 
        !          5355: 
        !          5356: 
        !          5357: 
        !          5358: 
        !          5359: 
        !          5360: crick,mechanism,conservative,cytosine,dna,genetic,thymine,replication,watson
        !          5361: crick,guanine,cytosine,dna,semiconservative,thymine,replication,watson,adenosine
        !          5362: crick,dna,dispersive,replication,watson
        !          5363: experiment,heavy,labeled,conservative,nitrogen,meselson,dna,stahl,isotope,replication
        !          5364: cells,conservative,dispersive,stahl,meselson,semiconservative,dna,replication
        !          5365: length,height,error,black,color,string,image,loop
        !          5366: egg,petal,sepal,receptacle,stigma,germinating,nucleus,style,pollen,anther,flower,staminode,embryo,stamen,sac,ovary,filament
        !          5367: spike,raceme,cob,headcorymb,corymb,panicle,umbel,head
        !          5368: bostryx,umbrellalike,head,pleiochasium,dichasium
        !          5369: angle,work,force
        !          5370: welcome,math,mathematics,champ
        !          5371: coils,molecule,rna,microscope,chromosomes,proteins,dna,components,cells,life,chromatin,nucleosomes,light,unravelled,chromosome,cell,transcription,replication,cycle,histone,cellular,deoxyribonucleic,nuclear,processes,genetic,electron,acid,process
        !          5372: line,length,stretched,cycle,equivalent,chromosomes,dna,helix,chromosome,cell,process,nucleus
        !          5373: 
        !          5374: 
        !          5375: 
        !          5376: 
        !          5377: 
        !          5378: telomerase,rna,telomere,dna,protein,activity,nucleotides,chromosome,cell,replication
        !          5379: addition,deoxyadenosine,deoxyribonucleotides,direction,dna,growth,knitting,limitation,limitations,nucleotide,nucleotides,phosphate,polymerase
        !          5380: hydrogen,helix,helicase,dna,replication
        !          5381: area,average,heat,ice,kg,melt,surface,temperature
        !          5382: telomerase,length,molecule,dna,nucleotides,polymerase,cell,replication,okazaki,cycle
        !          5383: growth,nucleotide,rna,fragments,proteins,dna,string,replication,okazaki,primer,enzymes,strand
        !          5384: kinase,cAMP, second messenger
        !          5385: kinase,cAMP,second,jpg,messanger
        !          5386: Carbon,Cycle
        !          5387: 
        !          5388: enzyme,receptor,gprotein,phosphorylates
        !          5389: kinase,signaling,yeast,diffusion,cell,ions,receptor,neurotransmitter,glycolysis,membrane,phosporylation,phospholipid
        !          5390: photosynthesis,respiration, decomposition, fossil fuel, ecosystem
        !          5391: diagram
        !          5392: units
        !          5393: temperatures,momentum,angular,gravitational,solid,particles,sun,temperature
        !          5394: protein,components,activity,stress,addition,cell,balance,glucose
        !          5395: protein,components,proteins
        !          5396: gravitational,diagram,contraction
        !          5397: sun
        !          5398: radius,period,orbital,surface,temperature,velocity
        !          5399: gas,forces,sphere,picture,sun,plane
        !          5400: tyrosine,dag,dimerization,adenylyl,autophosphorylation
        !          5401: proteins
        !          5402: kinase,phosphodiesterase,gdp,receptor,gprotein,cyclase,atp,effector,protein,messenger,ligand,conformation,gtpase,phosphorylates
        !          5403: 
        !          5404: line,cycle,tumor,microscope,cells,cell,image
        !          5405: cycle,cell,image
        !          5406: cycle,proteins,phase,dna,protein,cell,graph
        !          5407: cycle,cyclin,phase,dna,mitosis,cell,graph
        !          5408: 
        !          5409: senkrecht
        !          5410: cyclins,cycle,dna,mitosis,cell
        !          5411: 
        !          5412: phosphorylase,cholera,protein,phosophodiesterase,gdp,epinephrine,phosphotase,glucose
        !          5413: synapse,receptor,membrane,glycolysis,phospholipid,diacylglycerol,neurotransmitter
        !          5414: collect,sit,distinguished,accordingly,laterally,bonlinebotanikunihamburgde,largely,drastically,incoming,exclusively,excreted,dying,pt,multilayered,plainly,peter,happen,large,existing,when,considerably,exceptionally,free,according,particularly,lay,spec,exist,insufficient,develops,online,due,built,head,covers,mostly,part,continues,necessary,kasprik,upper,exception,layer,touch,changing,exists,seen,known,act,consist,nonspecialized,devoid,strongly,astonishing,touched,co,strong,strictly,induces,botany,smooth,until,pure,densely,crysalize,ones,gr,directly,include,sengbusch,weak,likely,specialized,actual,numerous,lively,becomes
        !          5415: 
        !          5416: drugs,cycle,cyclin,chemo,phase,cells,chemotherapy,cell
        !          5417: recognized,develop,bonlinebotanikunihamburgde,highly,pt,peter,when,michael,th,continually,online,equally,redo,thomas,marginright,rost,marginleft,body,consists,consist,prusinkiewicz,thereby,whether,generates,appears,always,ones,absorb,sengbusch
        !          5418: center,cycle,chromosomes,cell,image,process
        !          5419: cycle,chromosomes,nondividing,cells,nuclear,cell,image,dividing,process
        !          5420: frequency,fundamental,hz,length,speed,string,transverse,waves
        !          5421: cell,cells,cellular,copyright,cycle,division,divisions,dna,genetic,growth,mitosis,mitotic,nuclear,period,phase,phases,process,proteins
        !          5422: antiproton,beam,collide,momentum,particle,proton,sps,velocity
        !          5423: chromatids,cycle,chromosomes,chromatid,chromosome,cell,replication
        !          5424: growth,cytokinesis,cycle,dna,components,cytoplasmic,cells,interphase,mitosis,cell,genetic
        !          5425: growth,chromatids,cycle,metabolism,cellular,phase,dna,divides,components,mitosis,processes,separation,chromosome,cell,division,replication,process
        !          5426: length,cycle,chromosomes,phase,dna,cells,fertilization,cell,replication
        !          5427: line,distance,chromatids,cycle,chromosomes,membrane,phase,mitosis,nuclear,processes,mitotic,cell,centromere,process
        !          5428: center,period,plate,equivalent,proteins,nuclei,membrane,dna,cells,membranes,centrosomes,chromosome,cell,centromere,metaphase,line,cycle,prophase,kinetochores,phase,nuclear,processes,image,process
        !          5429: 
        !          5430: cycle,nuclei,phase,specific,cells,cell,practice
        !          5431: specific,cells,cell,practice,process
        !          5432: atoms,constant,distance,electron,electrons,energy,ev,kinetic,light,momentum,photon,solid,solids,structure,wavelength
        !          5433: energy,frequency,hz,laser,light,photon,photons,pulse
        !          5434: atom,average,block,data,degrees,heat,hydrogen,ice,kg,latent,mass,melt,molecule,molecules,phase,photon,photons,water,wavelength
        !          5435: length,direction,position,color,string,pattern
        !          5436: 
        !          5437: length,direction,position,color,string,pattern
        !          5438: 
        !          5439: length,direction,position,color,string,pattern
        !          5440: 
        !          5441: length,direction,position,color,string,pattern
        !          5442: 
        !          5443: length,string,sun,angle,height,phase,radius,image
        !          5444: 
        !          5445: length,direction,position,color,string,pattern
        !          5446: 
        !          5447: strings,motion,length,angular,magnitude,acceleration,mass,law,string,half,torque,newtons,linear
        !          5448: motion,distance,angular,moment,thin,solid,acceleration,mass,string,force,frictionless,radius,inertia,weight
        !          5449: motion,forces,moment,magnitude,acceleration,mass,law,friction,pulley,field,net,gravity,newtons,body,force,rotational,radius,inertia,rotates,linear
        !          5450: center,equilibrium,distance,length,mass,torques,torque,rotation
        !          5451: length,string,angle,height,radius
        !          5452: 
        !          5453: length,string,angle,height,radius
        !          5454: 
        !          5455: length,string,angle,height,phase,radius,image
        !          5456: 
        !          5457: mass,inclined,masses,height,radius,plane
        !          5458: period,angular,mass,momentum,conservation,rotation
        !          5459: solid,friction,units,energy,height,speed,frictionless,block,radius,translation,conservation,rotation,slides,loop
        !          5460: center,ball,distance,moment,mass,inclined,angle,radius,inertia,plane
        !          5461: kg,energy,mass,elastic,air,constant
        !          5462: mass,speed,force
        !          5463: kg,momentum,mass,speed
        !          5464: kg,ball,mass,speed
        !          5465: dna,fragments,helicase,helix,lagging,leading,ligase,okazaki,polymerase,primer,primosome,protein,recognition,replication,rna,template
        !          5466: pendulum,kg,mass,speed,bullet,block
        !          5467: kg,momentum,energy,speed,bullet,block,mass,friction
        !          5468: energy,work,force,friction,potential,weight
        !          5469: energy,speed,kinetic,friction,potential
        !          5470: lagging,telomerase,rna,telomere,dna,nucleotides,polymerase,chromosome,replication,okazaki,leading
        !          5471: 
        !          5472: lignin,sisalana,wall,Angular,vascular,turgor,fibre,xylem,Collenchyma,seeds,tissue,cellulose,collenchyma,stem,pectin,parenchyma,Yucca,Water,sclereids,Lacunar,fibres,H,sisal,sclerenchyma,botany,cells,v,Agave,meristematic,Mohl,secondary,content,cell,tissues,walls,phloem,Tangential,stone
        !          5473: wood,Phanerogames,bundle,vascular,xylem,Pteridophytes,tracheids,pteridophytes,pt,states,viruses,mosses,botany,cambium,phytohormones,vessels,petrified,phloem
        !          5474: botany
        !          5475: xylem,tracheids,fibres,botany,Marsilea
        !          5476: kg,acceleration,mass,friction,data,slide,angle,parallel,speed,force,water,component,coefficient,slides,velocity
        !          5477: 
        !          5478: motion,accelerating,acceleration,position,speed,body,velocity
        !          5479: chromosomal,and,line,chromosomes,linearly,maps,structures,model,botany,inheritance,meiosis,gene,organism,mitosis,linked,linear,mutations,chromosome,organized,sex,polytene
        !          5480: law
        !          5481: Night,sky-constellations-planets-early astronomy-mechanical universe,exam
        !          5482: flowers,selection,biology,evolution,fundamental,life,variation,adaptations,flower,plant,diversity
        !          5483: evolution,variation
        !          5484: acetylation,rna,proteins,dna,protein,polymerase,ubiquitination,methylation,transcription,introns,promoter,enhancer,ribosome
        !          5485: metaphase,chromocenters,Acetabularia,lamp,euchromatin,haploid,band,of,bands,chromosomes,brush,satellite,loops,heterochromatic,selective,a,activity,botany,satellites,Arabidopsis,gene,thaliana,chromatin,regular,chromosome,domains,set,karyotype
        !          5486: diversity
        !          5487: domain,periodic,increasing,range,decreasing,onetoone
        !          5488: 
        !          5489: 
        !          5490: cycle,cell
        !          5491: ice,melting
        !          5492: ice,melting
        !          5493: 
        !          5494: 
        !          5495: acid,amino,atp,balance,bioenergetics,cell,cells,charged,chemical,conduction,constant,electrical,energy,enzyme,enzymes,free,glucose,gradient,hydrolysis,impulse,ion,ions,lipids,membrane,membranes,metabolism,molecule,nonpolar,process,reaction,reactions,significant,synthesis,transport,water,work
        !          5496: 
        !          5497: 
        !          5498: field,magnetic,wire
        !          5499: 
        !          5500: 
        !          5501: charge,Tesla,magnetic,magnitude,wire
        !          5502: Tesla,current amps,field,magnetic,wire
        !          5503: 
        !          5504: 
        !          5505: Tesla,Amps Newtons Charge,distance,force,length,loop,magnitude,net,square,wire
        !          5506: black,color,diagram,energy,free,glucose,graphs,heat,line,molecule,molecules,protein,reactions
        !          5507: body,carbon,glucose,ice,molecule,molecules,picture,positive,reactions,water
        !          5508: acids,amino,atp,glucose,molecule,protein
        !          5509: acids,amino,body,collisions,energy,picture,protein,proteins,water,work
        !          5510: acid,amino,atp,cells,glucose,protein
        !          5511: acids,amino,lines,picture,protein,strain,structural
        !          5512: acids,amino,molecule,picture,protein,proteins
        !          5513: acid,acids,activity,amino,atp
        !          5514: atp,carbon,chain,glucose,molecules,positive,protein,speed,stored,unit,units,work
        !          5515: atp,body,cell,cells,energy,glucose,reactions,speed
        !          5516: activity,atp,cell,cells,energy,glucose,molecules
        !          5517: acid,activity,amino,atp,cell,energy,glucose,molecule
        !          5518: action,atp,bioenergetics,cell,cycle,ions,molecules,na,potassium,protein,reactions,sodium
        !          5519: 
        !          5520: lengths,length,perimeter,number
        !          5521: xdx,int,integral,Calculus
        !          5522: xdx,calculus,int,integral
        !          5523: distance,quadratic,calculus,minimum
        !          5524: 
        !          5525: 
        !          5526: 
        !          5527: 
        !          5528: 
        !          5529: 
        !          5530: 
        !          5531: 
        !          5532: 
        !          5533: 
        !          5534: 
        !          5535: 
        !          5536: 
        !          5537: 
        !          5538: 
        !          5539: 
        !          5540: 
        !          5541: 
        !          5542: 
        !          5543: 
        !          5544: 
        !          5545: 
        !          5546: 
        !          5547: 
        !          5548: domain,periodic,increasing,range,decreasing
        !          5549: domain,periodic,line,function,range,onetoone
        !          5550: composite,number,composite,function
        !          5551: composite,function
        !          5552: interval,decreasing
        !          5553: interval,increasing,concave
        !          5554: formula,limit,finite
        !          5555: evolution,life,genotype,mendel,phenotype,genes,genotypes,genesalleles,genetics,gene
        !          5556: formula,limit,finite
        !          5557: graph,differentiable,continuous
        !          5558: maximum,graph,differentiable
        !          5559: interval,derivative,decreasing
        !          5560: minimum,maximum,inflection,concave,relative
        !          5561: graph,derivative,decreasing,linear,graphs
        !          5562: minimum,maximum,extremum,local,graph
        !          5563: integral,logarithm,natural
        !          5564: differentiation,implicit
        !          5565: parameter,differentiation
        !          5566: chain,rule
        !          5567: review,integrate
        !          5568: concave
        !          5569: invertible,number
        !          5570: derivative
        !          5571: approximation,linear
        !          5572: perpendicular
        !          5573: number,newtons
        !          5574: radius,approximation,circular,volume,cylinder,estimate,height,linear
        !          5575: line,perpendicular
        !          5576: acceleration,vector,motion,parametric,particle,plane
        !          5577: motion,parametric,distance,length,particle,plane
        !          5578: formula,area,square
        !          5579: distance,hypotenuse,speed,plane
        !          5580: minimum,maximum,inflection,extrema,points,relative
        !          5581: selection,biology,life,evolution
        !          5582: function,average,interval
        !          5583: integration
        !          5584: integration
        !          5585: number
        !          5586: number,positive,area,ti,parabola,quadrant
        !          5587: revolution,solid,power,volume,solution,graph,positive,function,formula,rotating,square,disk
        !          5588: meiosis,chromosome,cell,genetic,random,nuclei,nucleus
        !          5589: 
        !          5590: 
        !          5591: density,energy,kinetic,motion,rotational,solid,speed,sphere,spheres,weight
        !          5592: 
        !          5593: 
        !          5594: angular,bullet,center,collision,distance,kg,line,mass,momentum,motion,perpendicular,radius,solid,surface,velocity
        !          5595: angular,density,kg,mass,solid,sphere,velocity
        !          5596: 
        !          5597: 
        !          5598: angle,compressed,friction,kg,length,mass,position,speed,spring,thin
        !          5599: angle,compressed,constant,friction,kg,length,mass,position,speed,spring,thin
        !          5600: 
        !          5601: 
        !          5602: pulley,block,center,dissipated,distance,energy,friction,inertia,kg,mass,moment,pulley,radius,speed,string
        !          5603: angular,conservation,kg,mass,momentum,period,rotation
        !          5604: 
        !          5605: 
        !          5606: 
        !          5607: 
        !          5608: 
        !          5609: 
        !          5610: distance,energy,friction,kg,mass,radius,speed,thin,wire
        !          5611: angular,center,constant,frictionless,mass,momentum,net,perpendicular,plate,rotation,speed,torque,work
        !          5612: angular,ball,center,direction,kinetic,moment,momentum,motion,radius,speed,velocity
        !          5613: air,average,center,density,distance,electrical,energy,eye,height,kinetic,radius,si,speed,thin,unit,units
        !          5614: air,average,center,density,distance,electrical,energy,eye,height,kinetic,radius,si,speed,thin,unit,units
        !          5615: Course,Management
        !          5616: cats,crosses,gametes,genetics,meiosis,phenotypes,potential,punnett,ratio,tortoiseshell
        !          5617: black,gene,genetics,product,protein,proteins
        !          5618: alleles,black,body,cats,gene,genetics,inheritance,pattern,phenotype,spots
        !          5619: reference,assortment,independent,random,variability,fertilization,meiosis,mitosis,sexual,unit,cycle,recombination,cellular,processes,reproduction,genetic,objectives
        !          5620: direction,earth,light,magnitude,photon,reference,speed,velocities,velocity
        !          5621: angular,atom,body,direction,energy,kinetic,light,mass,motion,particle,plate,relativistic,speed,static
        !          5622: electrons,energy,frequency,intensity,maximum,metal,minimum,photoelectric,photons,velocity
        !          5623: direction,earth,light,magnitude,speed,velocities,velocity
        !          5624: beam,decay,dilation,distance,expansion,law,light,ratio,relativistic,speed
        !          5625: electron,electrons,energy,kinetic,potential,velocity
        !          5626: atomic,average,distance,nuclei,rays,speed
        !          5627: cross,length,speed
        !          5628: beats,earth
        !          5629: atoms,constant,data,gas,ideal,liquid,momentum,particle,separation,temperature,wavelength
        !          5630: Kelvin,absolute,atoms,boltzmanns,constant,gas,ideal,liquid,momentum,particle,separation,temperature,wavelength
        !          5631: 
        !          5632: 
        !          5633: diagram,energy,ev,hydrogen,light,lines,photons,solid
        !          5634: diagram,energy,ev,hydrogen,light,lines,photons,solid
        !          5635: 
        !          5636: 
        !          5637: area,capacitor,electric,field,magnitude,plate,plates,potential
        !          5638: atom,electrons,neutrons,protons
        !          5639: atomic,average,isotope,mass
        !          5640: average,force,height,kg,magnitude,net,water
        !          5641: accuracy,density,digits,mass,measure,measurement,relationship,significant,volume
        !          5642: number,significant
        !          5643: electron,energy,ev,kinetic,mev,nucleus,potential,velocity
        !          5644: de,broglie,broglie,electrons,picture,televisions,voltage,wavelength
        !          5645: growth,chromosomes,series,fundamental,divides,cells,interphase,mitosis,chromosome,cell,replication,cycle,cellular,divide,grow,chromosomegene,processes,separation,reproduction,genetic
        !          5646: density,frequency,fundamental,hz,length,linear,mass,speed,string,tension,transverse,wave,waves
        !          5647: equilibrium,ice,kg,liquid,mass,melt,thermal,water
        !          5648: calorimetry,heat,kg,temperature,water
        !          5649: ball,data,degrees,energy,heat,height,potential,surface,temperature
        !          5650: calorimeter,capacity,conservation,energy,equilibrium,heat,temperature,water
        !          5651: actin,bioenergetics,contract,contraction,energy,fibers,leg,muscle,myosin,power,reactions,work
        !          5652: actin,atp,bioen,bioenergetics,contraction,myosin,processes,proteins
        !          5653: air,bioen,bioenergetics,chemical,contract,contraction,glucose,muscle
        !          5654: cells,chemical,co,energy,formula,free,molecule,molecules,negative,positive,process,structural,work
        !          5655: error,metaphase,number,nondisjunction,meiosis,haploid,diploid,chromosome,cell,zygote,chiasma,nucleus,tetrad
        !          5656: atoms,constant,distance,electron,electrons,energy,ev,kinetic,light,momentum,photon,solid,solids,structure,wavelength
        !          5657: tetrads,metaphase,nondisjunction,prophase,zygote,diagram,label,random,error,meiosis,separation,chromosome,cell,nucleus
        !          5658: cat,cats, genetic, coat, color,genetics,genotype,protein,proteins,spotting,work
        !          5659: body,cats,color,genetics,work
        !          5660: annihilates,antiproton,antiprotons,carbon,coal,converted,data,einsteins,electrical,energy,half,heat,kg,mass,megawatts,plant,power,proton,protons
        !          5661: annihilates,antiproton,antiprotons,carbon,data,electrical,energy,half,heat,kg,mass,plant,power,proton,protons
        !          5662: air,beam,charge,gamma,ions,kg,number,rays,units
        !          5663: number,proton,radiation,units
        !          5664: electrons,equivalent,gamma,neutrons,number,protons,radiation,rays,units
        !          5665: alpha,beam,biologically,energy,equivalent,kg,mev,number,particle,particles,radiation,rems,units
        !          5666: atom,electron,energy,ev,hydrogen,line,photon,series
        !          5667: 
        !          5668: air,kg,mass,minimum,molecule,molecules,uncertainty,velocity
        !          5669: block,direction,electron,energy,free,photon,photons,wavelength
        !          5670: MeV,energy,ionized,kinetic,nucleus,potential
        !          5671: color,constant,energy,frequency,light,photon,speed,units,wavelength
        !          5672: beam,conservation,electron,energy,ev,frequency,hz,kinetic,maximum,metal,photon,photons,radiation,surface,work
        !          5673: 
        !          5674: 
        !          5675: 
        !          5676: 
        !          5677: 
        !          5678: 
        !          5679: 
        !          5680: 
        !          5681: 
        !          5682: 
        !          5683: 
        !          5684: 
        !          5685: 
        !          5686: 
        !          5687: 
        !          5688: 
        !          5689: 
        !          5690: 
        !          5691: 
        !          5692: 
        !          5693: 
        !          5694: 
        !          5695: 
        !          5696: 
        !          5697: 
        !          5698: 
        !          5699: 
        !          5700: chemical,extensive,intensive,physical,property
        !          5701: change,chemical,physical
        !          5702: 
        !          5703: 
        !          5704: 
        !          5705: 
        !          5706: 
        !          5707: 
        !          5708: group,period
        !          5709: compound,element,heterogeneous,homogeneous,mixure
        !          5710: conductor,electricity,heat,metal
        !          5711: atom,chemical,gases,mass,period,product,solids,volume
        !          5712: 
        !          5713: 
        !          5714: 
        !          5715: 
        !          5716: 
        !          5717: 
        !          5718: 
        !          5719: 
        !          5720: 
        !          5721: 
        !          5722: number,significant
        !          5723: number,significant
        !          5724: 
        !          5725: angle,data,diffraction,direction,distance,intensity,interference,laser,light,maximum,minimum,pattern,perpendicular,separation,slit,slits,wavelength
        !          5726: angle,beam,degrees,diffraction,discharge,electrical,gas,grating,hydrogen,light,lines,maximum,number,separation,slit,spectrum,wavelength
        !          5727: atp,bioenergetics,coupled,electrons,gradient,processes,reaction,reactions,voltage,water
        !          5728: acid,atp,bioenergetics,energy,enzyme,enzymes,free,glutamic,glutamine,hydrolysis,hydrolyzed,phosphate,phosphates,process,proximity,react,reaction,reactions,series
        !          5729: addition,bioenergetics,cells,energy,glucose,hydrolysis,metabolism,molecule,proteins,reaction,reactions,specific,work
        !          5730: bioenergetics,energy,enthalpy,entropy,equilibrium,ice,melt,molecules,temperature,water
        !          5731: acids,amino,cells,diffusion,entropy,growth,membrane,molecules,number,process,protein,proteins
        !          5732: bioenergetics,energy,force,gravity,heat,hydrogen,input,process,processes,state,states,stretched,water,work
        !          5733: acid,acids,activity,amino,atp,bioenergetics,cell,cells,enzyme,enzymes,glutamine,vegan
        !          5734: acid,activator,amino,atp,bioenergetics,enzyme,glucose,glycogen,inhibitor,molecule,phosphorylase
        !          5735: atp,bioenergetics,carbon,enzyme,glucose,glycogen,phosphate,phosphorylase,protein,unit
        !          5736: atp,bioenergetics,energy,enzyme,glucose,glycogen,phosphorylase
        !          5737: air,chemical,collisions,energy,force,heat,molecules,temperature
        !          5738: activation,bioenergetics,energetics,energy,heat,line,reaction,reactions,solid,temperature
        !          5739: bioenergetics,co,diagram,energy,enzyme,enzymes,free,fructose,glucose,graph,intermediate,molecules,oxidation,react,reactants,sugar
        !          5740: bioenergetics,burn,co,energy,enzyme,enzymes,fructose,marshmallow,molecules,reaction,reactions
        !          5741: acid,amino,atp,bioenergetics,components,contraction,dna,energy,muscle,negative,nucleotide,proteins,structure
        !          5742: action,bioenergetics,catalyze,energy,enzyme,fructose,glucose,hydrolysis,hydrolyzed,molecule,molecules,reaction,reactions,sucrase,sucrose
        !          5743: bioenergetics,diagram,energetics,energy,enzymes,fructose,glucose,graph,hydrolysis,line,sucrase,sucrose
        !          5744: bioenergetics,bioreaction,cells,co,energy,molecule,molecules,process,reaction,work
        !          5745: adiabatic,compressed,expansion,gas,ideal,temperature,volume
        !          5746: constant,degrees,efficiency,electrical,electricity,kelvin,maximum,plant,reservoir,temperature,temperatures,water
        !          5747: basal,benedict,energy,expenditure,formula,harris
        !          5748: 
        !          5749: charge,distance,electric,electron,electrons,force,gravitational,kg,mass,radius,ratio,repulsion
        !          5750: 
        !          5751: 
        !          5752: 
        !          5753: charge,charges,coulombs,data,electric,electrostatic,force,law
        !          5754: glutaraldehyde,microtubuli, cytoskeleton, (9+2 structure, cell wall, pits, plasmodesmata, pores, pit areas,botany
        !          5755: kg,heat,kinetic,energy,mass,height,friction,speed,diagram,data
        !          5756: kg,minimum,mass,friction,energy,height,radius,velocity,loop
        !          5757: accelerates,acceleration,coefficient,distance,force,friction,kg,mass,speed
        !          5758: History,DNA,Replication
        !          5759: angle,beam,degrees,distance,electrons,energy,interference,kinetic,maximum,momentum,slits,wavelength
        !          5760: area,average,circular,data,equilibrium,ideal,orbit,power,radius,spherical,sun,surface,temperature
        !          5761: 
        !          5762: coating,destructive,glass,half,interference,length,lens,light,medium,minimum,reflection,refraction,wavelength
        !          5763: air,film,glass,interference,lambda,light,maximum,medium,minimum,nm,reflected,refraction,thin,wavelength
        !          5764: relativity,c speed of light,moving,period,speed
        !          5765: accelerate,charged,circular,field,mass,radius,voltage
        !          5766: area,charge,charges,cross,density,direction,electric,electrons,field,film,force,law,length,magnetic,metal,number,ohms,ratio,resistance,resistivity,separation,thin,unit,velocity,voltage
        !          5767: area,charge,charges,cross,density,direction,electric,electrons,field,film,force,law,length,magnetic,metal,number,ohms,ratio,resistance,resistivity,separation,thin,unit,velocity,voltage
        !          5768: direction,field,force,magnetic,perpendicular,wire
        !          5769: Tesla,charge,coulombs,distance,field,line,magnetic,magnitude
        !          5770: field,length,magnetic,magnitude,solenoid,wire
        !          5771: battery,circuit,field,law,magnetic,ohms,resistance,resistor,series,solenoid,voltage
        !          5772: concave,distance,image,mirror,radius
        !          5773: air,angle,refraction,solid
        !          5774: air,light,liquid,radius,refraction,submerged,surface
        !          5775: convex,curvature,focal,length,magnitude,mirror,negative,optical,positive,radius,surface
        !          5776: convex,curvature,distance,focal,height,image,length,magnification,magnitude,mirror,negative,optical,plane,positive,radius,ratio,surface
        !          5777: air,angle,block,law,light,ray,refraction,snells,speed,states,vacuum
        !          5778: air,angle,light,reflection
        !          5779: air,angle,refraction,solid
        !          5780: air,angle,degrees,light,ray,reflected,refraction,solid,surface
        !          5781: 
        !          5782: 
        !          5783: amperes,center,field,magnetic,magnitude,radius,toroid,wire
        !          5784: field,length,magnetic,number,radius,ratio,solenoid,solenoids
        !          5785: angular,conservation,constant,electrical,faraday,field,flow,force,frictional,frictionless,law,magnetic,metal,momentum,net,parallel,radius,rotates,rotating,torque,velocity
        !          5786: 
        !          5787: 
        !          5788: area,coil,emf,field,flux,loop,magnetic,magnitude,number,ohm,perpendicular,plane,potential,radius,resistance,resistor,wire
        !          5789: area,average,component,data,emf,field,flux,induced,magnetic,voltage
        !          5790: 
        !          5791: 
        !          5792: amperes,area,distance,field,flux,length,loop,magnetic,positive,surface,wire
        !          5793: 
        !          5794: 
        !          5795: angular,area,circuit,coil,conducting,constant,dissipated,electrical,faradays,field,flux,graph,induced,induction,law,length,magnetic,magnitude,maximum,number,ohm,ohms,period,power,resistance,rotating,square,thin,velocity,voltage,wire
        !          5796: circular,cross,distance,electric,electron,faradays,field,force,law,line,magnitude,radius,solenoid,wire
        !          5797: constant,field,induced,loop,magnetic,magnitude,perpendicular,velocity,voltage
        !          5798: energy,field,magnetic,radius,solenoid,stored,wire
        !          5799: direction,energy,inductor,stored
        !          5800: circular,coil,conducting,field,frequency,hz,magnetic,perpendicular,radius,rotates
        !          5801: circular,emf,field,induced,loop,magnetic,plane,radius
        !          5802: efficiency,engine,heat,maximum,minimum,temperature
        !          5803: 
        !          5804: 
        !          5805: atom,density,electrons,interference,particle,photons,probability,quantum,square,volume,wave,waves
        !          5806: angle,angles,atoms,collisions,conservation,distance,energy,field,force,kinetic,law,laws,metal,mev,momentum,motion,nuclei,particle,particles,thin
        !          5807: battery,block,capacitance,capacitor,charge,constant,dielectric,distance,electric,emf,energy,force,half,length,parallel,plates,position,stored
        !          5808: 
        !          5809: atom,atoms,earth,frequency,hydrogen,hz,light,speed,units
        !          5810: air,frequency,hz,ratio,sound,speed
        !          5811: height,inertia,kg,mass,moment,plate
        !          5812: 
        !          5813: 
        !          5814: 2D,Matrices,Limits,Hospital,L,Rule
        !          5815: and,Stardeath,Supernova
        !          5816: water
        !          5817: black,light
        !          5818: radiation,center,distance,black,relativity
        !          5819: life,black,neutron,sun
        !          5820: radius,heat,conductor,earth,structure,mass,black,solid,surface,medium
        !          5821: radius,heat,conductor,earth,structure,mass,black,neutron,solid,surface,medium
        !          5822: radius,gas,earth,mass,neutron,pressure,electron
        !          5823: period,energy,rotating,neutron,rotational
        !          5824: masses,momentum,earth,life,mass,angular,solid,conservation,rotation,satellite,body
        !          5825: center,position,expansion,light,polarized
        !          5826: radius,masses,radiation,mass,electromagnetic,black,rotation
        !          5827: kg,area,average,energy,mass,power
        !          5828: limit,log,infinity
        !          5829: black,neutron,relativity
        !          5830: reference,motion,forces,gravitational,relativity,force,frame
        !          5831: limit,log
        !          5832: log,cos
        !          5833: limit,number,differentiate,infinity
        !          5834: limit,log,infinity
        !          5835: allies,bryohytes,bryophytes,chloroplast,chloroplasts,fern,free,gametophyte
        !          5836: 
        !          5837: 
        !          5838: angle,work,force
        !          5839: energy,speed,kinetic,mass,elastic,constant,potential
        !          5840: maximum,mass,pendulum,height,speed
        !          5841: center,distance,interference,light,maxima,maximum,parallel,pattern,plane,slits,wavelength,waves
        !          5842: 
        !          5843: 
        !          5844: 
        !          5845: 
        !          5846: kg,mass,elastic,constant,speed
        !          5847: 
        !          5848: 
        !          5849: 
        !          5850: 
        !          5851: cycle,microscope,cell,image
        !          5852: operations,units
        !          5853: lengths,order,increasing
        !          5854: average,distance,speed
        !          5855: speed,power
        !          5856: power,height
        !          5857: energy,kg,mass,elastic,constant
        !          5858: antenna,destructive,distance,frequency,interference,length,phase,radio,wavelength,waves
        !          5859: distance,experiment,interference,maximum,minimum,plane,slit,slits,waves
        !          5860: log,number,infinity
        !          5861: amplitude,botany,preparations,mitosis,phase,preparation
        !          5862: limit,number
        !          5863: log,infinity
        !          5864: limit,sin
        !          5865: limit,cos
        !          5866: limit
        !          5867: limit
        !          5868: limit,tan
        !          5869: acceleration,vector,position,particle,velocity
        !          5870: limit
        !          5871: acceleration,vector,normal,position,particle,velocity
        !          5872: traveled,distance,position,particle,speed
        !          5873: acceleration,vector,position,unit,particle,velocity
        !          5874: vector,perpendicular,orthogonal,scalar
        !          5875: direction,vector,length
        !          5876: direction,vector,angle,length,projection
        !          5877: direction,vector,angle,length,projection
        !          5878: direction,vector,angle,length,projection
        !          5879: unit,length,direction,vector,coefficient
        !          5880: direction,vector,coefficient,unit,length
        !          5881: bryohytes,bryophtyes,fern,gameophytes
        !          5882: bryohytes,cells,fern,gametes,liverwort,plant,structure
        !          5883: bryohytes,cells,fern,mosses,organic
        !          5884: allies,bryohytes,fern,plant,sporophyte,vascular
        !          5885: 
        !          5886: 
        !          5887: 
        !          5888: 
        !          5889: 
        !          5890: 
        !          5891: 
        !          5892: 
        !          5893: 
        !          5894: 
        !          5895: 
        !          5896: 
        !          5897: wave,density,particle,probability
        !          5898: alleles,coat,color,electrical,epistasis,gene,genes,genetics,pleiotropy,recessive,sound
        !          5899: cats,coat,color,gene,genetics,locus
        !          5900: agouti,black,genes,genetics
        !          5901: aldo,black,cat,coat,color,genetics,genotype,odin
        !          5902: charge,charges,coulombs,distance,electric,force,forces,law,line,negative,net,position,positive,superposition
        !          5903: agouti,allele,alleles,black,cat,coat,color,colors,epistatic,gene,genes,genetics,loci,orange,product,recessive
        !          5904: 
        !          5905: capacitance,capacitor,charge,charged,constant,electrical,energies,energy,formula,joules,plates,potential,radius,ratio,sphere,spheres,stored,units,voltage,volts
        !          5906: wave,density,particle,probability
        !          5907: antibiotic,antibiotics,avery,body,coated,cole,dna,horses,human,infection,microbe,molecule,oswald,pneumonia,process,replication,sugar,sugarcoated,vaccination,work
        !          5908: atom,charge,charges,coulombs,distance,electric,electron,electrons,field,force,magnitude,nucleus,number,protons,square
        !          5909: 
        !          5910: 
        !          5911: charges,force,line,negative,net,positive
        !          5912: 
        !          5913: 
        !          5914: 
        !          5915: 
        !          5916: 
        !          5917: 
        !          5918: 
        !          5919: 
        !          5920: 
        !          5921: 
        !          5922: 
        !          5923: 
        !          5924: 
        !          5925: 
        !          5926: charge,charges,diagram,direction,electric,field,force,forces,magnitude,vector
        !          5927: charge,charges,cross,electric,field,line,lines,negative,positive
        !          5928: area,capacitance,capacitor,capacity,charge,charged,conductors,constant,distance,electrical,energy,magnitude,metal,plate,plates,potential,separation,stored,thin,voltage
        !          5929: 
        !          5930: 
        !          5931: gas,carbon,combustion,hydrogen,light,density,experiment,formula,co
        !          5932: 
        !          5933: 
        !          5934: 
        !          5935: 
        !          5936: 
        !          5937: 
        !          5938: 
        !          5939: 
        !          5940: 
        !          5941: molecule,work,dna,body,process
        !          5942: 
        !          5943: 
        !          5944: botany
        !          5945: botany
        !          5946: masses,kg,force,accelerate,acceleration,rate,mass,light,friction,string,pulley,surface
        !          5947: 
        !          5948: 
        !          5949: 
        !          5950: 
        !          5951: 
        !          5952: 
        !          5953: 
        !          5954: ball,magnitude,acceleration,graph,gravity,speed,surface,velocity
        !          5955: ke,pe,acceleration,Planet,graph,gravity,speed,surface,velocity
        !          5956: kg,height,gravity,zog,spock,acceleration,mass
        !          5957: kg,angle,degrees,speed,frictionless,block,inclined,plane,velocity
        !          5958: speed,mass
        !          5959: kg,positive,force,ice,frictionless,magnitude,acceleration,constant,slides,velocity
        !          5960: kg,positive,angle,force,ice,frictionless,magnitude,direction,components,acceleration,constant,slides,velocity
        !          5961: kg,maximum,thin,newtons,speed,tension,radius,mass,plane
        !          5962: kg,period,centripetal,force,rotational,rotates,center,acceleration,mass,data,speed,rotation
        !          5963: kg,period,acceleration,mass,cart,centripetal,data,speed,force,rotational,car,rotation
        !          5964: 
        !          5965: acceleration,centripetal,data,energy,force,friction,height,kg,mass,maximum,physics,radius,speed,work
        !          5966: kg,maximum,magnitude,mass,position,force
        !          5967: vector,kg,forces,magnitude,direction,acceleration,mass,force
        !          5968: 
        !          5969: kg,minimum,pulleys,tension,mass,pulley,masses,angle,degrees,frictionless
        !          5970: 
        !          5971: kg,accelerating,mass,inclined,angle,net,force,frictionless,block
        !          5972: acceleration,body,force,frictionless
        !          5973: 
        !          5974: gravitational,sun,radiation,earth
        !          5975: 
        !          5976: length,vectors,components,vector,cartesian
        !          5977: botany
        !          5978: botany
        !          5979: botany
        !          5980: botany
        !          5981: kg,mass,law,field,gravity,pulley,newtons,frictionless
        !          5982: botany
        !          5983: botany
        !          5984: 
        !          5985: botany
        !          5986: botany
        !          5987: botany
        !          5988: botany
        !          5989: 
        !          5990: 
        !          5991: cells,dna,eukaryotic,expression,gene,genome,nuclei,tryptophan
        !          5992: 
        !          5993: cells,dimension,epithelial,epithelium,expression,gel,gene,genes,image,myosin,nuclei,protein,proteins,solution,specific,water
        !          5994: origins,plant
        !          5995: expression,gene,proteins,transcription,tryptophan,work
        !          5996: act,bacterial,dna,enzymes,expression,gene,genes,operon,operons,polymerase,product,protein,proteins,repressing,repressor,rna,significant,transcribing,transcription,tryptophan
        !          5997: acids,amino,atom,dna,expression,finger,gene,helix,helixturnhelix,leucine,molecule,number,proteins,specific,structure,transcription,turn,zinc,zipper
        !          5998: cell,coli,expression,gene,molecule,molecules,operator,operon,polymerase,promoter,repessors,rna,tryptophan
        !          5999: coli,gene,mutant,strain,transcription,tryptophan
        !          6000: addition,cell,chemical,enzyme,gene,glucose,image,lac,lactase,lactose,molecule,molecules,mrna,operator,operon,polymerase,protein,proteins,rna,transcription,tryptophan
        !          6001: cell,dna,expression,gene,lac,lactose,molecule,operon,polymerase,positive,protein,regulator,rna
        !          6002: eukaryotes,expression,cells,gene,cell,genetic,regulation
        !          6003: cell,cells,circadian,clock,control,eukaryotes,eukaryotic,expression,gene,promoter,protein,proteins,regulation,transcription
        !          6004: bind,binding,circadian,clock,data,eukaryotes,expression,gene,genetic,period,polymerase,promoter,protein,regulation,repressor,rna
        !          6005: expression,biomolecules,carbon,unit,molecules,membrane,control,eukaryotes,cells,hydrogen,steroid,gene,prokaryotes,cell,cross,lipid,transcription
        !          6006: cell,cells,expression,gene,protein,proteins
        !          6007: acceleration,positive,position,constant,speed,graph,velocity,data
        !          6008: masses,motion,forces,field,gravity,newtons,body,force,frictionless,accelerate,magnitude,components,acceleration,mass,law,pulley,accelerates,constant
        !          6009: statics,strings,magnitude,graph,tension,frame
        !          6010: charged,charges,electric,field,parallel,plates
        !          6011: 
        !          6012: Non,Negative, Absolute, Alternating, Series
        !          6013: compressed,distance,height,light,position,projectile,speed,spring
        !          6014: 
        !          6015: 
        !          6016: 
        !          6017: 
        !          6018: 
        !          6019: coat,diagram,endosperm,seed
        !          6020: diagram,nuclei,ovule,polar
        !          6021: evolution,magnoliophyta,plants,seedplants
        !          6022: flower,pollinator,pollinators,seedplants
        !          6023: fruit,picture,plants
        !          6024: evolution,flowering,plants,zygote
        !          6025: plant,nucleus,pinophyta,sporophytes
        !          6026: coniferophtya,coniferophyta,evolution
        !          6027: plant,flowering,megagametophyte,megasporangium,megasporophyll,number,plants,ploidy
        !          6028: angiosperms,gymnosperm,ovules,plant,sperm
        !          6029: Monoecious,Synecious, Dioecious Plants,megasporangia,plant
        !          6030: Stamens
        !          6031: 
        !          6032: 
        !          6033: 
        !          6034: 
        !          6035: 
        !          6036: 
        !          6037: 
        !          6038: 
        !          6039: 
        !          6040: 
        !          6041: diagram,epidermis,growth,phloem,ray,transport
        !          6042: development,diagram,plant
        !          6043: 
        !          6044: germinate,germination,metabolism,plant,process
        !          6045: organ,plant
        !          6046: 
        !          6047: growth,hormones,plant,reactions
        !          6048: growth,hormone,hormones,plant,responses
        !          6049: growth,plant,ratio
        !          6050: 
        !          6051: solid,mass,density,volume
        !          6052: 
        !          6053: metaphase,ploidy,meiosis,mitosis,anaphase
        !          6054: atom,average,block,data,degrees,heat,hydrogen,ice,kg,latent,mass,melt,molecule,molecules,phase,photon,photons,water,wavelength
        !          6055: 
        !          6056: 
        !          6057: 
        !          6058: 
        !          6059: 
        !          6060: 
        !          6061: 
        !          6062: 
        !          6063: 
        !          6064: 
        !          6065: 
        !          6066: 
        !          6067: 
        !          6068: 
        !          6069: 
        !          6070: 
        !          6071: 
        !          6072: 
        !          6073: 
        !          6074: 
        !          6075: partial,sum,error,approximating,geometric,formula
        !          6076: 
        !          6077: 
        !          6078: 
        !          6079: 
        !          6080: 
        !          6081: 
        !          6082: infinite,series,convergence,series,geometric
        !          6083: 
        !          6084: transmission,botany,chlorophyll,red,epifluorescence,microscope,of,fluorescence,microscopes,ph
        !          6085: volume,spherical,radius,area,sphere,surface
        !          6086: contrast,botany,microscope,interference,wollastone,wollaston,prism
        !          6087: tension,mass,law,string,constant,net,newtons,speed,force,sphere,weight
        !          6088: interpretation,botany,modern,storing,microtubuli,microphotography,microscope,microscopy,photo,AVEC,image,POL,photoelectron,DIC
        !          6089: multiplication,number
        !          6090: botany
        !          6091: contrast,enhancement,st,botany,positive,heavy,negative,ion,coat,cross,metal,section,staining,coating
        !          6092: equilibrium,distance,position,law,constant,stretched,force,spring,displacement
        !          6093: botany
        !          6094: kg,maximum,magnitude,mass,position,force
        !          6095: botany
        !          6096: botany
        !          6097: botany
        !          6098: botany
        !          6099: 
        !          6100: 
        !          6101: 
        !          6102: botany
        !          6103: graph
        !          6104: functions,linear,quad,continuous
        !          6105: length,integrals,curve
        !          6106: parametric,particle,trajectory,plane,velocity
        !          6107: cylinder,length,circular,volume,area
        !          6108: color,block
        !          6109: label,random
        !          6110: 
        !          6111: plot,scatter
        !          6112: function,plot
        !          6113: kg,distance,gravitational,si,mass,constant,gravity,newtons,force,earth,surface
        !          6114: center,distance,gravitational,gravity,newtons,force,ratio,si,earth,mass,sun,data
        !          6115: equilibrium,forces,force
        !          6116: diagram,flower,megasporangium,seedplants
        !          6117: 
        !          6118: radius,mass,surface,bullet,velocity,data
        !          6119: motion,distance,gravitational,acceleration,constant,masses,gravity,newtons,force,isolated
        !          6120: masses,kg,acceleration,motion,energy,distance,law,isolated,gravitational,gravity,conservation,constant,newtons,potential,speed,force,units
        !          6121: 
        !          6122: 
        !          6123: 
        !          6124: 
        !          6125: 
        !          6126: 
        !          6127: magnitude,dot,vector,product,scalar
        !          6128: 
        !          6129: 
        !          6130: 
        !          6131: 
        !          6132: 
        !          6133: 
        !          6134: 
        !          6135: vries,Erich,de,botany,v,agamospermy,inheritance,Nageli,egg,meiosis,helix,theory,nucleic,my,seysenegg,DNA,of,chromosome,deoxyribose,von,double,Correns,Hugo,Tschermak,acid,C
        !          6136: bot,botany
        !          6137: 
        !          6138: 
        !          6139: 
        !          6140: 
        !          6141: 
        !          6142: 
        !          6143: 
        !          6144: infinite,series,sum
        !          6145: 
        !          6146: 
        !          6147: botany
        !          6148: expression,enzymes,gene,work,operon,tryptophan,transcription
        !          6149: infinite,series,series,sum,partial
        !          6150: infinite,series
        !          6151: cell,expression,gene,membrane,mutant,operon,protein,strain,transcription,transport,tryptophan
        !          6152: minimum,expression,arrangement,gene,operon,chromosome,capacity,amino,tryptophan,molecules,regulation,precursor,mrna,acid
        !          6153: comparison,integral,improper
        !          6154: ball,stationary,resistance,height,velocity
        !          6155: integral,improper
        !          6156: comparison,integral,improper
        !          6157: comparison,integral,improper
        !          6158: comparison,integral,improper
        !          6159: infinite,limit,sequence
        !          6160: revolving,gabriels,integral,volume,horn
        !          6161: infinite,limit,sequence,product
        !          6162: limit,sequence
        !          6163: limit,sequence,infinite
        !          6164: limit,sequence,infinite
        !          6165: nth,term,sequence
        !          6166: sequence,nth,term
        !          6167: revolving,integral,volume,solid
        !          6168: integral,improper
        !          6169: integral,improper
        !          6170: integral,improper
        !          6171: integral,improper
        !          6172: integral,improper
        !          6173: recursively,number,sequence,root,newtons
        !          6174: integral,improper
        !          6175: integral,improper
        !          6176: metaphase,complex,haploid,diploid,bivalents,leptotene,zygotes,synapsis,pachytene,zygote,pt,synaptic,Strasburger,chiasma,diplotene,phase,E,T,chromomeres,botany,cells,Boveri,meiosis,anaphase,cell,set,telophase,chiasmata,germ,zygotene,interkinesis,diakinesis
        !          6177: infinite,limit,sequence
        !          6178: nth,term,formula
        !          6179: recursively,sequence,root,newtons
        !          6180: limit,sequence,infinite
        !          6181: limit,sequence,infinite
        !          6182: infinite,limit,sequence
        !          6183: infinite,limit,sequence
        !          6184: limit,sequence,infinite
        !          6185: infinite,limit,sequence
        !          6186: limit,sequence,infinite
        !          6187: limit,sequence,infinite
        !          6188: limit,sequence,infinite
        !          6189: Milky,Way
        !          6190: sequence
        !          6191: magnitude,period,distance,light
        !          6192: center,modulus,hydrogen,line,distance,metal,nucleus
        !          6193: Galactic,Center
        !          6194: example,of plot
        !          6195: Dist,to Gal Cent,direction,center,modulus,angle,distance,square,sun,plane,graph,data
        !          6196: table
        !          6197: Galactic,Nucleus,direction,black,sun,nucleus
        !          6198: table
        !          6199: table
        !          6200: table
        !          6201: table
        !          6202: crp,expression,gene,induce,induced,operator,operon,polymerase,protein,regulatory,repressed,repressor,rna,transcription,trp
        !          6203: 
        !          6204: 
        !          6205: 
        !          6206: 
        !          6207: 
        !          6208: 
        !          6209: 
        !          6210: 
        !          6211: 
        !          6212: 
        !          6213: 
        !          6214: 
        !          6215: 
        !          6216: 
        !          6217: 
        !          6218: 
        !          6219: 
        !          6220: 
        !          6221: 
        !          6222: 
        !          6223: 
        !          6224: 
        !          6225: translation,protein,expression,cells,gene,eukaryotic,diagram,hormones,mrna,transcription
        !          6226: 
        !          6227: 
        !          6228: 
        !          6229: 
        !          6230: 
        !          6231: 
        !          6232: 
        !          6233: 
        !          6234: 
        !          6235: 
        !          6236: 
        !          6237: 
        !          6238: 
        !          6239: 
        !          6240: 
        !          6241: 
        !          6242: 
        !          6243: 
        !          6244: 
        !          6245: 
        !          6246: 
        !          6247: 
        !          6248: 
        !          6249: 
        !          6250: 
        !          6251: 
        !          6252: 
        !          6253: 
        !          6254: 
        !          6255: 
        !          6256: 
        !          6257: 
        !          6258: 
        !          6259: 
        !          6260: 
        !          6261: 
        !          6262: 
        !          6263: 
        !          6264: expression,components,gene,eukaryotic
        !          6265: 
        !          6266: for,PL-d calc
        !          6267: plant,root,roots
        !          6268: light,curve
        !          6269: Log,P) vs. V
        !          6270: light,curve
        !          6271: light,curve
        !          6272: light,curve
        !          6273: light,curve
        !          6274: light,curve
        !          6275: disk,circular,gas,sun,metal
        !          6276: Galactic,Center,center,radiation,sun,rays,gamma
        !          6277: spiral,arms,metal
        !          6278: halo,gas,metal,spherical,sun
        !          6279: diagram,hair,plant
        !          6280: Way,contents,Milky
        !          6281: Y,value,graph,ax
        !          6282: graph,determination,fxaxb
        !          6283: thickness,textbook,convert
        !          6284: acceleration,constant,data,positive,speed,velocity
        !          6285: plot,of Galactic Longitude
        !          6286: chromosome,tetrad, meiosis, chiasma
        !          6287: integral,divergent,series,convergent,comparison
        !          6288: body,bryohytes,fern,lycophyta,microphylls,specific,sporangia,terminal,work
        !          6289: integral,divergent,harmonic,series,convergent,comparison
        !          6290: integral,divergent,harmonic,series,convergent,comparison
        !          6291: diverge,pseries,comparison,integral,converge,series
        !          6292: integral,divergent,harmonic,series,convergent,comparison
        !          6293: approximate,number,sum,series,partial
        !          6294: approximate,number,sum,series,partial
        !          6295: root,diverge,converge,conditionally,ratio,absolutely,series,alternating
        !          6296: root,diverge,converge,conditionally,ratio,absolutely,series,alternating
        !          6297: root,absolutely,ratio,series,diverge,conditionally,alternating
        !          6298: root,diverge,converge,conditionally,ratio,absolutely,series,alternating
        !          6299: diverges,root,conditionally,ratio,absolutely,series,alternating,convergent
        !          6300: divergent,root,conditionally,ratio,absolutely,series,alternating,convergent
        !          6301: root,conditionally,ratio,absolutely,series,alternating,convergent,comparison
        !          6302: divergent,root,conditionally,ratio,absolutely,series,alternating,convergent
        !          6303: divergent,root,ratio,series,convergent,comparison
        !          6304: applicable,conditionally,ratio,absolutely,series,alternating,convergent
        !          6305: root,comparison,ratio,series,divergent,alternating,convergent
        !          6306: root,comparison,ratio,series,divergent,geometric,convergent
        !          6307: comparison,ratio,series,divergent,geometric,root,convergent
        !          6308: bot,botany
        !          6309: ananas,atavisms,date,plam,atavism,botany
        !          6310: trisomies,euploid,Datura,stramonium,botany,trisomy,nullisomics
        !          6311: formation,of,cultures,townsendii,wheat,Spartina,varities,grass,new,tail,Cat,species,botany,Timothy,s,different,var
        !          6312: root,comparison,ratio,series,divergent,geometric,convergent
        !          6313: botany
        !          6314: periclinical,and,translocation,Correlation,haploid,formation,basic,of,somatic,ploidy,Between,Over,mutations,polyploidy,auto,triploid,Crossing,number,sectorial,genome,diploid,new,polyploid,allopolyploidy,Cytogenetic,A,a,species,chimeras,botany,gene,geno,autopolyploidy,tetraploid,Genetic,set,cytochimera,genetic,characterized,karyotype,poyploidy,inversions,allopoyploidy
        !          6315: haploids,haploid,basic,autumnale,colchicine,auxine,somatic,quadrivalent,colchicum,ploidy,vitamin,endopolyploidy,mitosis,polyploids,polyploidy,triploid,number,bivalent,triploids,autumn,polyploid,C,c,botany,Autopolyploidy,colchicin
        !          6316: botany,contents,online
        !          6317: botany
        !          6318: botany
        !          6319: root,comparison,ratio,series,limit,divergent,harmonic,convergent
        !          6320: botany
        !          6321: kg,accel,angular,moment,torque,body,force,frictionless,tension,acceleration,inertia,mass,linear,friction,pulley,spheres,significant
        !          6322: strings,magnitude,acceleration,accel,inertia,mass,angular,moment,linear,friction,torque,body,force,tension,weight
        !          6323: 
        !          6324: 
        !          6325: charge,charges,magnitude,negative,positive
        !          6326: botany
        !          6327: period,length,string,image,loop
        !          6328: 
        !          6329: period,length,string,image,loop
        !          6330: 
        !          6331: period,length,string,image,loop
        !          6332: 
        !          6333: period,length,string,height,image,loop
        !          6334: period,length,string,image,loop
        !          6335: 
        !          6336: period,length,string,image,loop
        !          6337: 
        !          6338: period,length,string,image,loop
        !          6339: 
        !          6340: period,length,string,image,loop
        !          6341: 
        !          6342: botany
        !          6343: period,length,string,image,loop
        !          6344: 
        !          6345: period,length,string,image,loop
        !          6346: 
        !          6347: period,length,string,image,loop
        !          6348: period,wavelength,direction,negative,wave,string,positive,speed,harmonic
        !          6349: length,tension,mass,string,stretched,transverse,speed,wire,waves
        !          6350: pipe,maximum,length,wavelength,ratio,fundamental,amplitude,wave,number,oscillation,speed,water,sound,air,harmonic,displacement,frequency
        !          6351: motion,direction,wave,string,fields,parallel,transverse,waves,perpendicular,particles,surface
        !          6352: maximum,period,diagram,tension,mass,wave,string,oscillation,transverse,waves,displacement,frequency
        !          6353: equilibrium,period,wavelength,direction,amplitude,average,negative,mass,position,power,wave,string,data,positive,transverse,speed,displacement
        !          6354: maximum,motion,kinetic,mass,friction,stored,oscillation,energy,spring,conservation,potential,oscillates,velocity
        !          6355: maximum,wavelength,position,wave,string,positive,transverse,speed,mechanical,displacement,velocity
        !          6356: doppler,speed,sound,air,frequency
        !          6357: direction,speed,sound,frequency
        !          6358: biochemical,atp,components,sunlight,light,photosynthesis,energy,chemical,calvin,cycle,soybean,chloroplasts,nadph,image
        !          6359: mrna,position,nucleotides,amino,gene,acid
        !          6360: protons,molecule,fadh,diagram,atp,power,conversion,glycolysis,respiration,transport,cycle,atoms,glucose,co,krebs,reactions,nadh,electron,process
        !          6361: protein,free,chloroplasts
        !          6362: proteins,mrna,dna,protein,cell,transcription,rrna,gene
        !          6363: growth,dna,protein,polymerase,cell,transcription
        !          6364: co,synthesis,photosynthesis,nadp,nad,respiration,process,atp
        !          6365: sounds,carbon,molecule,mass,photosynthesis,calvin,cycle,chloroplast,molecules,co,earth,chloroplasts,air,plant
        !          6366: rna,protein,structure
        !          6367: rna,dna,protein,polymerase,transcription,gene
        !          6368: rna,mrna,dna,direction,transcription,nucleus,transport,process
        !          6369: mrna,protein,transcription,product,rrna,translation,gene
        !          6370: rna,dna,cell,genetic,external,process
        !          6371: nucleotide,proteins,mrna,dna,transcription,addition,amino,translation,genetic,acid
        !          6372: protein,growth,gene,polymerase,cell,transcription,dna
        !          6373: 
        !          6374: int,integral,logarithm
        !          6375: 
        !          6376: 
        !          6377: 
        !          6378: solution,line,formula,area,rotating,surface,square
        !          6379: artificial,selection,breeding,breeds,evolution,familiaris,specific,life,wolves,darwin,canis,dogs
        !          6380: 
        !          6381: dog,Sammy, 
        !          6382: 
        !          6383: 
        !          6384: evolution
        !          6385: 
        !          6386: fitness,biology,adapted,evolution,adaptations
        !          6387: 
        !          6388: 
        !          6389: 
        !          6390: 
        !          6391: 
        !          6392: 
        !          6393: 
        !          6394: sign,kg,magnitude,direction,components,vector,forces,mass,law,degrees,newtons,angles,force
        !          6395: magnitude,direction,components,acceleration,vector,forces,mass,degrees,newtons,angles,force
        !          6396: acceleration,forces,equal,constant,speed,force,velocity
        !          6397: 
        !          6398: 
        !          6399: kg,components,vector,motion,angle,speed,force,frictionless,block
        !          6400: Joules,work,gravity,force
        !          6401: force,time function
        !          6402: masses,kg,compressed,mass,law,spring,impulse,newtons,speed,force
        !          6403: kg,maximum,momentum,line,mass,speed,body,force
        !          6404: error,black,color,length,height,engine,string,image,loop
        !          6405: 
        !          6406: length,height,ray,video,physics
        !          6407: 
        !          6408: coefficient,degrees,distance,friction,inclined,kinetic,mass,position,speed,surface
        !          6409: distance,force,kg,speed
        !          6410: 
        !          6411: 
        !          6412: moment,acceleration,friction,string,pulley,angle,force,frictionless,block,radius,inertia,surface
        !          6413: length,string,angle,height,radius
        !          6414: 
        !          6415: reference,length,moment,magnitude,acceleration,angle,torque,frictionless,inertia
        !          6416: length,string,angle,height,radius
        !          6417: 
        !          6418: length,string,angle,height,radius
        !          6419: 
        !          6420: length,string,angle,height,radius
        !          6421: 
        !          6422: strings,string,image
        !          6423: 
        !          6424: mass,inclined,masses,height,radius,plane
        !          6425: ball,balls,incline
        !          6426: angular,center,circular,frictionless,momentum,rotates,velocity
        !          6427: motion,angular,moment,thin,solid,acceleration,mass,string,force,frictionless,inertia,weight
        !          6428: density,mass,period,rotates
        !          6429: moment,incline,angle,torque,inertia,plane
        !          6430: string,image
        !          6431: 
        !          6432: 
        !          6433: length,string,angle,height,phase,radius,image
        !          6434: 
        !          6435: length,string,angle,height,phase,radius,image
        !          6436: 
        !          6437: length,string,angle,height,phase,radius,image
        !          6438: 
        !          6439: length,string,angle,radius,loop
        !          6440: 
        !          6441: string,image
        !          6442: torques,thin,weight
        !          6443: center,equilibrium,distance,angular,gravitational,equivalent,tension,acceleration,mass,position,light,string,accelerates,line,speed,radius,component,sphere,rotation,velocity
        !          6444: forces,torques,angle,force,component,beam
        !          6445: 
        !          6446: 
        !          6447: 
        !          6448: 
        !          6449: 
        !          6450: 
        !          6451: 
        !          6452: 
        !          6453: 
        !          6454: 
        !          6455: 
        !          6456: 
        !          6457: 
        !          6458: 
        !          6459: 
        !          6460: 
        !          6461: 
        !          6462: 
        !          6463: 
        !          6464: 
        !          6465: 
        !          6466: compressed,components,ball,distance,mass,height,spring,velocity
        !          6467: air,speed,plane
        !          6468: ball,angle,speed
        !          6469: center,satellite,accelerating,orbit,centripetal,speed,force,radius,earth
        !          6470: motion,distance,independent,magnitude,components,acceleration,vector,constant,resistance,height,speed,air,velocity
        !          6471: center,motion,angle,unit,angular,degrees,speed,spherical,radius,circular,acceleration,vector,earth,linear,rotating,conversion,surface,rotation,velocity
        !          6472: 
        !          6473: maximum,center,ball,forces,length,speed,diagram,force,tension,radius,magnitude,mass,friction,string,centripetal,accelerates,surface,slides
        !          6474: angle,length,degrees,speed,mass,string
        !          6475: masses,frictional,forces,angle,gravity,newtons,force,tension,acceleration,component,kinetic,mass,law,light,friction,string,pulley,surface
        !          6476: equilibrium,accel,length,nd,gravitational,solid,magnitude,direction,acceleration,position,law,accelerates,pendulum,line,field,gravity,newtons,body,plane,oscillates
        !          6477: inclined,angle,degrees,frictionless,block,plane,velocity
        !          6478: moment,magnitude,average,mass,law,newtons,force,weight,glass
        !          6479: magnitude,acceleration,law,newtons,force,surface
        !          6480: distance,acceleration,friction,pulley
        !          6481: strings,acceleration,mass,law,accelerates,net,newtons,force,frictionless,surface
        !          6482: tension,acceleration,mass,string,accelerates
        !          6483: pendulum,vectors,acceleration,mass,position,string
        !          6484: magnitude,mass,law,newtons,force,ice,collision
        !          6485: radius,direction,center,equilibrium,number,mass,rotates,law,linear,friction,gravity,degrees,newtons,speed,force
        !          6486: radius,magnitude,ball,mass,thin,speed,tension
        !          6487: magnitude,direction,frictional,component,forces,kinetic,angle,mass,coefficient,perpendicular,friction,gravity,picture,degrees,slides,force,plane,lines,incline,block,units,data
        !          6488: 
        !          6489: pulley,magnitude,center,acceleration,forces,mass,law,field,net,gravity,pulley,accelerates,newtons,body,force,frictionless
        !          6490: 
        !          6491: kg,center,equilibrium,line,distance,angular,speed,tension,radius,acceleration,component,sphere,mass,position,light,string,accelerates,rotation,velocity
        !          6492: 
        !          6493: kg,position,friction,masses,speed,frictionless
        !          6494: angle,net,force,frictionless,block,accelerating,mass,inclined
        !          6495: angle,degrees,mechanical,static,mass,coefficient,friction
        !          6496: 
        !          6497: 
        !          6498: theta,pendulum,swings,magnitude,angle,mass,thin,constant,diagram,tension
        !          6499: 
        !          6500: kg,accelerate,rate,mass,friction,string,pulley,surface
        !          6501: radius,component,angle,friction,gravity,centripetal,degrees,speed,force
        !          6502: forces,mass,net,string,surface,force,tension,accelerate
        !          6503: line,van
        !          6504: 
        !          6505: kg,acceleration,kinetic,angle,coefficient,friction,string,pulley,surface,force,frictionless,block
        !          6506: friction,kg,angle,speed,block,mass,inclined,constant,slides,plane,incline,velocity
        !          6507: 
        !          6508: masses,kg,minimum,free,against,static,friction,surface,force,frictionless
        !          6509: maximum,acceleration,frictional,static,distance,friction,force
        !          6510: direction,acceleration,frictional,forces,kinetic,angle,coefficient,moment,friction,accelerates,degrees,inclined,force,plane,block
        !          6511: direction,acceleration,frictional,forces,kinetic,angle,static,coefficient,net,moment,friction,accelerates,degrees,inclined,force,plane,block
        !          6512: magnitude,frictional,average,kinetic,distance,coefficient,law,friction,newtons,speed,force,ice
        !          6513: 
        !          6514: masses,kg,acceleration,forces,mass,light,pulley,accelerates,force,frictionless
        !          6515: radius,kg,maximum,mass,thin,newtons,speed,plane,tension
        !          6516: compressed,equilibrium,frictional,kinetic,energy,distance,mass,position,work,spring,surface,constant,force,velocity,formula
        !          6517: 
        !          6518: kg,angle,mass,string,degrees,speed,diagram,formula
        !          6519: 
        !          6520: 
        !          6521: 
        !          6522: strings,kg,accelerates,surface,newtons,force,frictionless
        !          6523: minimum,distance,cart,surface,speed,frictionless
        !          6524: distance,speed,force
        !          6525: accelerates,coefficient,external,force,friction,kg,kinetic,magnitude,masses,strings,surface
        !          6526: 
        !          6527: kg,newtons,speed,force,acceleration,mass,law,friction,graph,rolling,van,weight,units
        !          6528: acceleration,average,constant,distance,engine,force,friction,graph,kg,law,mass,net,newtons,power,rolling,speed,units,van,weight
        !          6529: energy,distance,field,gravitational,height,gravity,acceleration,mass,potential
        !          6530: motion,energy,energies,work,body,force,kinetic,law,power,friction,projectile,conservation,constant,potential,external
        !          6531: metaphase,prophase,phases,chromosomes,mendelian,mitosis,anaphase,chromosome,centromeres
        !          6532: speed,mass,power,engine,air,resistance,rolling
        !          6533: algae,diatoms,dinoflagellates,cell,alga
        !          6534: algae,chloroplast,plates,cells,green,coleochaetales
        !          6535: algae,diatoms,chrysophytes,food,crypotomonads
        !          6536: algae,carotenoids,chlorophyll,browns,taxa,greens,pigments,crypotomonads
        !          6537: chloroplast,eye,pyrenoid,water,activity,meiosis,lipid,carbohydrate
        !          6538: algae,half,plates,dinoflagellates
        !          6539: algae,cryptomonads,flagellates
        !          6540: algae,gametes,life
        !          6541: algae,gas,diatoms,diatom,starch
        !          6542: algae,product,conducting,cells,structure,brown,carbohydrate
        !          6543: organelles,endosymbiosis,endosymbiotic,relationship,fungus,eukaryotes,cells,chloroplasts,cell,symbiotic,bacteria
        !          6544: growth,lichens,photosynthesis
        !          6545: diagram,lichen
        !          6546: carbon,fungus,symbiotic,mycorrhizae
        !          6547: fungus,specific,mycorrhiza,bacteria,plant
        !          6548: bacteria,chloroplasts,fungus,membrane,mitochondria,process
        !          6549: fungus,membrane,circular,eukaryotic,bacteria,prokaryotic,nucleus
        !          6550: cyanobacteria,chloroplast,fungus,membrane,photosynthesis,bacteria
        !          6551: chlorophyll,cyanobacteria,fungus,cells,pigments,bacteria,photosynthetic
        !          6552: chlorophyll,cyanobacteria,bacteria,photosynthetic
        !          6553: equilibrium,distance,work,force,compressed,mass,position,spring,surface,constant,velocity
        !          6554: unicellular,fungus,heterotrophic,multicellular,bacteria
        !          6555: equilibrium,distance,work,force,compressed,mass,position,spring,surface,constant,velocity
        !          6556: hyphae,fungi,bacteria
        !          6557: cyanobacteria,lichen,fungus,bacteria
        !          6558: masses,period,energy,protons,proton,series,electrons,einstein,mass,reactions,power,sun,electron,units,data,nucleus
        !          6559: data,einstein,electron,electrons,energy,mass,masses,nucleus,period,power,proton,protons,reactions,se,series,sun,units
        !          6560: heat,average,period,energy,plant,unit,power,units,electrical
        !          6561: acceleration,circular,electric,electrical,electron,force,magnitude,mass,motion,orbit,particle,proton,radius
        !          6562: acceleration,angular,charge,circular,electric,electrical,electron,energies,energy,ev,force,joules,kinetic,magnitude,mass,motion,negative,orbit,particle,period,potential,proton,radius,units,velocity
        !          6563: average,electrical,energy,heat,joules,kg,mass,period,plant,power,unit,units
        !          6564: average,electrical,energy,heat,joules,kg,mass,period,plant,power,unit,units
        !          6565: acceleration,constant,distance,energy,force,kinetic,magnitude,mass,net,particles,power,reference,speed,work
        !          6566: air,circular,direction,earth,energy,formula,friction,gravitational,gravity,heat,kg,mass,maximum,orbit,potential,radius,satellite,speed,surface,terminal,velocity,work
        !          6567: air,circular,direction,earth,energy,formula,friction,gravitational,gravity,heat,kg,mass,maximum,orbit,potential,radius,satellite,speed,surface,terminal,velocity,work
        !          6568: body,calorie,chemical,efficiency,energy,food,heat,human,kilocalorie,kilocalories,kj,work
        !          6569: 
        !          6570: compressed,constant,kg,length,light,mass,position,spring,trajectory
        !          6571: 
        !          6572: motion,sphere
        !          6573: earth,motion,orbit,sun,plane
        !          6574: spring
        !          6575: motion,orbit
        !          6576: spring,sun
        !          6577: center,earth,motion,telescope,laws,gravity,newtons,sun,newton
        !          6578: law,laws,newtons,mechanical
        !          6579: metaphase,ploidy,meiosis,mitosis,anaphase,plate,content,chromosomes,dna,nucleus
        !          6580: phy,physics
        !          6581: radiation,distance,mass,light,picture
        !          6582: approximate,series
        !          6583: direction,cart,line,velocity
        !          6584: divergent,harmonic,root,ratio,series,convergent,comparison
        !          6585: 
        !          6586: 
        !          6587: line,direction,cart,velocity
        !          6588: 
        !          6589: 
        !          6590: 
        !          6591: 
        !          6592: 
        !          6593: 
        !          6594: 
        !          6595: period,average,position,light,graph,speed
        !          6596: 
        !          6597: 
        !          6598: 
        !          6599: botany
        !          6600: 
        !          6601: and,the,tryptophane,DNA,of,amount,enzyme,double,pt,viruses,protein,nature,th,doubling,theory,chromatid,majus,cell,type,acids,Antirrhinum,serine,system,molecular,phenotype,cycle,mechanism,information,Neurospora,twice,hypothesis,amino,properties,genes,1,botany,genetics,crassa,helix,gene,genetic,one,transfer,acid
        !          6602: 
        !          6603: botany
        !          6604: light
        !          6605: 
        !          6606: 
        !          6607: botany
        !          6608: botany
        !          6609: 
        !          6610: botany
        !          6611: 
        !          6612: 
        !          6613: 
        !          6614: semiconservative,replication,botany
        !          6615: botany
        !          6616: biogeochemical,cycle,objectives,cycles
        !          6617: rotaional,ball,formula,circular,earth,inertia,rolling
        !          6618: 
        !          6619: force,weight
        !          6620: radius,kg,ball,kinetic,energy,mass,constant,speed,rotational
        !          6621: kg,kinetic,energy,mass,rotational
        !          6622: number,half,speed,force,radius,circular,mass,constant
        !          6623: Pentose,the,sugars,Sugar,cellulose,of,or,sugar,pi,Epimerization,Conversion,cell,Oxydative,Cycle,C5,5,by,Generation,botany,into,Phosphate,phosphate,Another,ribose,One,ho,starch
        !          6624: torque,force,chain,spring,weight
        !          6625: 
        !          6626: series,power
        !          6627: series,power
        !          6628: co,gas,earth,energy,mass,chemical,molecule,solid,liquid,food,lines,electron
        !          6629: biology,botany,plant
        !          6630: allele,alleles,cross,phenotype,ratio
        !          6631: botany
        !          6632: 
        !          6633: eye
        !          6634: 
        !          6635: and,the,lost,of,control,end,analysis,discussion,polyploidy,allostery,inhibition,product,protoplasts,initiated,degrees,amino,syntheses,branching,botany,beadle,gene,tatum,genetic,mutants,short,acid
        !          6636: botany
        !          6637: gene,glucose,induced,operator,polymerase,promoter,repressor,rna
        !          6638: health
        !          6639: carbon,gene,induced,mutation,polymerase,promoter,repressor,rna
        !          6640: expression,sequence,gene
        !          6641: 
        !          6642: 
        !          6643: cambium,growth,plant,root,vascular,xylem
        !          6644: diagram,pigments,plant,taxa
        !          6645: body,dicots,hormones,monocot,plant
        !          6646: 
        !          6647: co,components,energy,carbon,processes,photosynthesis,cell,potential,image,cellular,lines,plant,water,respiration,process
        !          6648: 
        !          6649: 
        !          6650: co,krebs,protein,components,cells,energy,carbon,membranes,nucleic,cycle,structural,rna,carbohydrates,photosynthesis,cell,acids,lipids,molecules,glycolysis,proteins,cellular,respiration,acid,dna,carbohydrate,process
        !          6651: center,component,components,currents,diagram,field,force,forces,magnetic,picture,square,superposition,vector,vectors,wire
        !          6652: growth,energy,unit,field,net,soybean,metabolism,temperature,water,formula,cells,area,mass,organic,light,photosynthesis,surface,image,plant,intensity,respiration,data,process
        !          6653: temperatures,period,energy,cellular,formula,negative,respiration
        !          6654: 
        !          6655: bioenergetics,biomolecules,carbon,chemical,co,energy,enthalpy,fermentation,glucose,negative,process,states
        !          6656: energy,carbon,gases,atom,co,photosynthesis,plant,process
        !          6657: energy,carbon,chemical,glucose,atp,co,mass,light,photosynthesis,cell,image,plant,respiration,process
        !          6658: center,field,loop,magnetic,magnitude,radius,singlecoil,superposition,thin,wire
        !          6659: energy,addition,molecules,metabolism,body,proteins,cellular,atp,co,mass,organic,reactions,cell,food,respiration,process
        !          6660: energy,carbon,cycle,cellular,water,co,surface,flux,respiration,data,process
        !          6661: 
        !          6662: bioenergetics,carbon,energy,enzyme,enzymes,favorable,free,glucose,process,reactions,regulation,water
        !          6663: carbon,absorption,mass,photosynthesis,energy,molecules,water,co,radiation,processes,plant,weight
        !          6664: 
        !          6665: 
        !          6666: atp,mass,light,photosynthesis,cell,graph,respiration,experiment,heat,line,energy,chemical,cellular,glucose,co,plant,process
        !          6667: cell,respiration,energy
        !          6668: beam,light,number,phase,refraction,units,wavelength,wavelengths
        !          6669: carbon,flow,lab,mass,food,respiration,experiment,energy,cellular,water,organic,processes,process
        !          6670: gas,proteins,components,mass,cell,acids,food,respiration,experiment,energy,product,addition,amino,molecules,metabolism,temperature,body,cellular,water,co,organic,reactions,processes,air,particles,plant,process
        !          6671: 
        !          6672: 
        !          6673: carbon,direction,components,sunlight,power,energy,net,cycle,dynamics,co,component,organic,plant
        !          6674: photosynthesis,graph,respiration,data,energy,temperature,dynamics,co
        !          6675: gas,carbon,combustion,diagram,diffusion,photosynthesis,respiration,energy,cycle,cellular,co,processes,process
        !          6676: carbon,components,photosynthesis,cell,respiration,energy,cycle,water,co,organic,image,plant
        !          6677: carbon,absorption,melt,photosynthesis,respiration,energy,cycle,molecules,cellular,water,co,surface,plant
        !          6678: charge,field,force,magnetic,picture,positive,velocity
        !          6679: 
        !          6680: 
        !          6681: amperes,center,direction,distance,field,fields,law,magnetic,magnitude,radius,solid,surface,wire
        !          6682: distance,earth,focal,image,length,lens
        !          6683: focal,height,image,length,lens
        !          6684: diopters,eye,focal,image,length,lens,lenses,power,virtual
        !          6685: concave,focal,image,length,mirror
        !          6686: concave,focal,length,magnification,mirror
        !          6687: angle,distance,image,mirror,plane,speed
        !          6688: 
        !          6689: addition,concave,distance,focal,image,length,lens,light,mirror,negative,position,positive,reflected
        !          6690: addition,concave,distance,focal,height,image,length,lens,light,magnification,mirror,negative,position,positive,product,reflected
        !          6691: angle,distance,formula,interference,laser,maximum,pattern,slits,wavelength
        !          6692: 
        !          6693: 
        !          6694: angle,constant,distance,formula,interference,laser,maximum,pattern,ratio,separation,slits,wavelength
        !          6695: angle,experiment,light,separation,slit,wavelength,youngs
        !          6696: 
        !          6697: average,data,energy,gas,ideal,kinetic,molecule,molecules,moles,number,temperature
        !          6698: 
        !          6699: carbohydrate,expression,gene,molecule,molecules,operon,protein,transcription,tryptophan
        !          6700: expression,energy,molecule,operon,glucose,atp,lactose,gene,regulation
        !          6701: experiment,force,radius,mass,string,centripetal
        !          6702: expression,operon,protein,lac,gene,repressor,transcription,glass
        !          6703: protein,estrogen,expression,cells,hormone,hormonal,period,gene,polymerase,rna,chromosome,external,molecules,proteins,mrna,transcription
        !          6704: degradation,eukaryotes,eukaryotic,expression,gene,mrna,prokaryotes,prokaryotic,promoter,regulation,rna,transcription
        !          6705: expression,genes,gene,prokaryotes,prokaryotic,regulation,transcription
        !          6706: 
        !          6707: kg,minimum,maximum,mass,friction,centripetal,speed,force,radius,coefficient
        !          6708: random,label image
        !          6709: antiparallel,direction,components,nucleotide,polymerase,nucleic,rna,template,elongation,transcription,dna,process
        !          6710: 
        !          6711: 
        !          6712: coat,color,alleles,body,calico,cat,genetics,orange,pattern
        !          6713: charge,charged,constant,dielectric,distance,electric,energy,field,isolated,parallel,plates
        !          6714: agouti,allele,alleles,black,cat,coat,colors,daisy,epistatic,gene,genetics,hair,light,loci,solid
        !          6715: air,area,battery,capacitance,capacitor,charge,charged,dielectric,flow,plate,plates,positive,separation,unit,voltage,volume
        !          6716: 
        !          6717: coat,color,biochemical,cats,genetics,protein
        !          6718: botany
        !          6719: botany
        !          6720: nucleotide,dna
        !          6721: dna,semiconservative,replication,semidiscontinuous
        !          6722: free,energy,carbon,reactions,water,glucose,process
        !          6723: cytoskeletal,lysosomes,endoplasmic,ribosomes,cell,mitochondria,transcription
        !          6724: chain,vector,enzymes,biotechnology,polymerase,gaattc,restriction,plasmid,mrna,dna
        !          6725: proton,gradient,membrane,series,atp,respiration,transport,cellular,glucose,co,chain,reactions,electron,process
        !          6726: dna
        !          6727: structure,gene
        !          6728: hydrogen,structure,polymerase,nucleic,molecule,solution,amino,proteins,water,acid,dna,hydrophobic,terminal
        !          6729: krebs,chain,carbon,transport,power,cycle,molecule,processes,proton,gradient,diagram,image,molecules,glycolysis,cellular,electron,water,membrane,respiration,process,atp
        !          6730: botany
        !          6731: Taylor,Series,MacLaurin,Lagrange,Power,Inifinite
        !          6732: differentiation,Taylor,fraction,Indefinite,techniques,parts,Series,hyperbolic,MacLaurin,Lagrange,Negative,Power,trigonometric,Polar,Conics,Absolutely,Limits,Integration,Hospital,substitution,L,Rule,functions,area,Non,coordinates,inverse,Alternating,Convergent,partial
        !          6733: Discontinuity
        !          6734: kg,maximum,tension,acceleration,height
        !          6735: 
        !          6736: kg,acceleration,mass,string,accelerates,tension
        !          6737: component,angle,tension
        !          6738: 
        !          6739: 
        !          6740: 
        !          6741: 
        !          6742: 
        !          6743: dummy,wall,crash,kinetic,energy,distance,negative,work,force
        !          6744: dummy,energy,distance,newtons,speed,force,test,direction,acceleration
        !          6745: 
        !          6746: plot,plots
        !          6747: agriculture,crop,ecology,ethnobotany
        !          6748: mutualism,plant
        !          6749: desert,rejuvenation
        !          6750: ecology,grassland,maintenance
        !          6751: plant,allelopathy,tannins
        !          6752: plant,ecology,energy
        !          6753: plant
        !          6754: biome,mass,plants
        !          6755: biome,biomes,photosynthesis
        !          6756: cambium,growth,parenchyma,phloem,plant,vascular,xylem
        !          6757: cohesion,growth,molecules,positive,potential,pressure,surface,transport,water,xylem
        !          6758: apoplastic,pathways,symplastic
        !          6759: apoplastic,growth,osmosis,phloem,plant,roots,shoots,symplastic,transport
        !          6760: growth,lenticels,periderm,plant,secondary,stomata,transport
        !          6761: coniferophyta,magnoliophyta,transport,wood
        !          6762: growth,ringporous,secondary,transport,wood
        !          6763: cambium,compression,conifers,growth,secondary,tension,transport
        !          6764: parenchyma,phloem,transport,xylem
        !          6765: growth,phloem,plant,process,transport,xylem
        !          6766: acid,carbon,growth,transpiration,transport
        !          6767: collide,collision,kg,mass,speed
        !          6768: 
        !          6769: block,bullet,frictionless,height,incline,kg,mass,speed
        !          6770: carbon,growth,hydrogen,macronutrients,micronutrients
        !          6771: chlorophyll,growth,light,pigments
        !          6772: dormancy,growth,nutrition,seed
        !          6773: light,nynastic,pulvini
        !          6774: deficiencies,membranes,mineral,plant,thylakoid
        !          6775: components,soil
        !          6776: acids,amino,anaerobic,cyanobacteria,cycle,growth,nitrate,nitrogen,organic,plants
        !          6777: aerobic,anaerobic,bacteria,growth,organic,plant,symbiotic
        !          6778: plant,coleoptile,diagram,direction,growth,light,picture,position
        !          6779: plant,deficiencies,growth,mineral,plants
        !          6780: chlorophyll,circadian,growth,light,plant,rhythms,temperature
        !          6781: flower,flowering,growth,light,nutrition,plant,plants
        !          6782: 
        !          6783: 
        !          6784: 
        !          6785: 
        !          6786: 
        !          6787: 
        !          6788: compressed,force,impulse,kg,law,mass,masses,newtons,speed,spring
        !          6789: angle,atomic,beam,block,collide,collision,conservation,electron,energy,law,light,momentum,number,photon,wavelength
        !          6790: cart,collision,conserved,direction,elastic,external,forces,kg,linear,mass,momentum,speed
        !          6791: 
        !          6792: 
        !          6793: 
        !          6794: 
        !          6795: 
        !          6796: 
        !          6797: 
        !          6798: 
        !          6799: 
        !          6800: 
        !          6801: 
        !          6802: 
        !          6803: angular,axis,center,circular,rotate,rotation,speed
        !          6804: angular,ball,center,direction,kinetic,moment,momentum,motion,radius,speed,velocity
        !          6805: 
        !          6806: 
        !          6807: 
        !          6808: 
        !          6809: 
        !          6810: 
        !          6811: distance,energy,friction,inertia,kg,mass,moment,radius,speed,thin,wire
        !          6812: acceleration,air,ball,buoyancy,constant,laws,mass,motion,newtons,string,tension,thin,velocity,weight
        !          6813: acceleration,ball,balls,constant,force,laws,mass,motion,newtons,st,string,tension,thin,velocity,weight
        !          6814: 
        !          6815: 
        !          6816: correct,incorrect
        !          6817: atp,chain,electron,gradient,number,power,protons,respiration,synthase,transport
        !          6818: gradient,membrane,cells,membranes,acids,transport,amino,glucose,co
        !          6819: atp,cellular,chain,electron,electrons,energy,gradient,potential,power,protons,respiration,transport,water
        !          6820: co
        !          6821: 
        !          6822: energy,protons,transport,gradient,molecules,colors,cellular,water,membrane,series,electrons,protein,chain,hydrogen,reactions,power,electron,respiration,process
        !          6823: 
        !          6824: center,of mass,angular,center,frictionless,kg,mass,rads,speed
        !          6825: 
        !          6826: 
        !          6827: 
        !          6828: 
        !          6829: casparian,plant,proteins,strips,water
        !          6830: 
        !          6831: 
        !          6832: 
        !          6833: 
        !          6834: chitin,cellulose,cell,botany,microfibrils,callose
        !          6835: 
        !          6836: 
        !          6837: 
        !          6838: inertia,length,mass,moment,thin,unit,varies
        !          6839: center,inertia,length,mass,moment,thin,unit
        !          6840: bryohytes,diagram,fern,sporophyte,stages,zygote
        !          6841: allies,bryohytes,fern,growth,plant,vascular
        !          6842: bryohytes,fern,gametophytes,heterospores,heterospory,homospores
        !          6843: steroids,fatty,glycolipids,of,ester,biosynthesis,steroid,membranes,acids,lipids,palmitic,cholesterol,fats,botany,oils,oleic,phospholipids,waxes,acid
        !          6844: co,krebs,product,reactions,cycle,molecules,glycolysis,nad,cellular,respiration,glucose,atp
        !          6845: 
        !          6846: letter,histidine,phenylalanine,asparagine,thr,acidic,tryptophane,arginine,basic,methionine,arg,pt,asp,twenty,hydrophobic,isoleucine,cysteine,tryosine,glu,gly,acids,leu,polar,met,cys,part,aspartic,glutamine,amino,glycine,glutamic,code,botany,phe,three,valine,non,one,val,threonine,ala,acid
        !          6847: introns,rna,amino,proteins,dna,protein,component,structure,ribosome
        !          6848: protein,charges,unit,polymerase,rna,molecules,rrna,proteins,mrna,dna
        !          6849: protein,free,chloroplasts,proteins
        !          6850: period,length,string,height,image,loop
        !          6851: period,length,string,height,image,loop
        !          6852: 
        !          6853: period,length,string,image,loop
        !          6854: 
        !          6855: period,length,string,image,loop
        !          6856: 
        !          6857: period,length,string,image,loop
        !          6858: 
        !          6859: period,length,string,image,loop
        !          6860: 
        !          6861: period,length,string,image,loop
        !          6862: 
        !          6863: period,length,string,image,loop
        !          6864: plant,ratio
        !          6865: cross,ratio
        !          6866: color,cross,phenotype,ratio
        !          6867: vacuole,homogentisate,the,SACHS,basic,of,hydroxybenzoate,secondary,use,products,some,product,elsewhere,allelopathy,ducts,compound,metabolism,compounds,J,malonate,botany,v,shikimate,acetate,plant,pathway
        !          6868: maximum,equilibrium,motion,period,magnitude,acceleration,mass,position,frictionless,block,spring,air,harmonic
        !          6869: period,length,thin,gravitational,acceleration,mass,light,string,resistance,oscillations,pendulum,oscillation,earth,air,surface,hz,frequency
        !          6870: 
        !          6871: angle,length,height,water,phase,radius,mass,string,image
        !          6872: 
        !          6873: length,height,phase,string,image
        !          6874: 
        !          6875: angle,length,height,radius,string
        !          6876: 
        !          6877: angle,string,image,frequency
        !          6878: 
        !          6879: angle,string,image,frequency
        !          6880: 
        !          6881: angle,string,image,frequency
        !          6882: 
        !          6883: angle,length,height,radius,string
        !          6884: 
        !          6885: force,pressure,spherical,water,circular,magnitude,air
        !          6886: pressure,water,density,air,surface
        !          6887: solid,mass,density,volume,buoyant,submerged,force,water,weight
        !          6888: force,fluid,displaced,density,volume,air,weight,buoyant
        !          6889: archimedes,body,displaced,floats,fluid,glass,life,string,volume,water
        !          6890: line,degrees,water,floats,mass,position,density
        !          6891: pipe,ideal,pressure,water,fluid,area,cross,velocity
        !          6892: pipe,speed,pressure,fluid,constant
        !          6893: 
        !          6894: 
        !          6895: alleles,color,cross,genetics,genotype,genotypes,phenotype,phenotypes,ratio
        !          6896: cell,cells,crosses,dihybrid,genotypes,meiosis,number,paternal
        !          6897: data,diagram,energy,formula,inductor,resistor,stored,voltage
        !          6898: 
        !          6899: 
        !          6900: electrons,notation,orbital,si
        !          6901: Analog,Decimal
        !          6902: 
        !          6903: 
        !          6904: crosses,dihybrid,height,inheritance,plant,practice,ratio
        !          6905: 
        !          6906: addition,alleles,cells,cross,dihybrid,frequencies,genetics,genotype,genotypic,number,probability,punnett,square
        !          6907: addition,alleles,cells,cross,dihybrid,frequencies,genetics,phenotype,probability,punnett,square
        !          6908: 
        !          6909: cells,frequencies,genetics,genotype,phenotype,probability,punnett,square,squares
        !          6910: cross,genetics,probability,ratio
        !          6911: chromosome,color,cross,dihybrid,gene,genetics,inheritance,light,protein,ratio
        !          6912: genetic,chromosome,crossover,crossovers,gametes,genetics,recombinant
        !          6913: allele,alleles,chromosome,data,gamete,genetics,linked,phenotypes
        !          6914: 
        !          6915: co,experiment,growth,energy,lab,carbon,cycle,processes,light,photosynthesis,plate,plant,water,respiration,flow
        !          6916: alleles,disease,dystrophy,genetic,genetics,inheritance,limb,muscular
        !          6917: disease,duchennes,dystrophy,genetics,inheritance,muscular,pedigree
        !          6918: allele,alleles,carriers,chromosome,disease,dystrophy,genetics,inheritance,xlinked
        !          6919: inducible,expression, repressor
        !          6920: 
        !          6921: 
        !          6922: 
        !          6923: series,maclaurin
        !          6924: limit,power,series
        !          6925: life
        !          6926: 
        !          6927: 
        !          6928: 
        !          6929: 
        !          6930: 
        !          6931: insurance
        !          6932: 
        !          6933: insurance
        !          6934: information,label
        !          6935: deductible
        !          6936: units,glass,data
        !          6937: number,activity,units
        !          6938: 
        !          6939: exam
        !          6940: gas,components,nuclear,metal,nucleus
        !          6941: strings
        !          6942: gas,hydrogen,line,distance,structure,position,velocities,photon,light,density,particles,atoms,lines,medium,spectrum,absorption
        !          6943: masses,gas,center,heat,collide,energy,velocities,black,magnetic,power,relativistic,gravitational,doppler,fields,rotating,degrees,particles,rotation,lines,nuclei,intensity,optical
        !          6944: gas,induced,component,collide,energy,structure,nuclear,wavelength,wavelengths,lines,collision,spectrum,nucleus,collisions
        !          6945: radiation,center,velocities,expansion,fields,relativity,data
        !          6946: masses,gas,momentum,distance,mass,black,law,field,angular,isolated,density,rotating,newtons,significant,process
        !          6947: radiation,einstein,energy,structure,mass,relativistic,expansion,density,equivalent,constant,relativity
        !          6948: masses,number,acceleration,hydrogen,energy,mass,chemical,reactions,magnetic,nuclear,processes,fields,atomic,particles,medium,ray,process
        !          6949: distance,unit,law,light,square,sun
        !          6950: structure,black,gravitational,density
        !          6951: radiation,laws,particles
        !          6952: mass,density,temperature
        !          6953: radiation,energy,lens,black,gravitational,constant,satellite,temperature,body,accelerating
        !          6954: distance,density,constant
        !          6955: mass,black,nuclear,light,relativity,physics
        !          6956: distance,radius,constant
        !          6957: motion,expansion,constant
        !          6958: distance,light
        !          6959: hydrogen,body,nuclei
        !          6960: constant
        !          6961: density
        !          6962: density
        !          6963: radiation
        !          6964: density
        !          6965: radiation,carbon,light
        !          6966: radiation
        !          6967: states
        !          6968: states
        !          6969: expansion,density,gravity
        !          6970: magnitude,components,forces,mass,string,tension
        !          6971: fraction,derivative,data
        !          6972: magnitude,components,vector,addition,diagram,data
        !          6973: coordinate,field,speed
        !          6974: ball,angle,height,air,speed
        !          6975: maximum,motion,kinetic,mass,friction,stored,oscillation,energy,spring,conservation,potential,velocity
        !          6976: length,height,work,string
        !          6977: 
        !          6978: pattern,length,direction,position,color,string
        !          6979: 
        !          6980: angle,length,height,radius,string
        !          6981: 
        !          6982: length,string,angle,height,phase,radius,image
        !          6983: 
        !          6984: angle,length,height,phase,radius,string,image
        !          6985: 
        !          6986: length,string,angle,height,phase,radius,image
        !          6987: 
        !          6988: angle,length,height,phase,radius,string,image
        !          6989: allolactose,crp,lac,lactose,operator,operon,polymerase,promoter,repessor,rna,transcription
        !          6990: 
        !          6991: angle,length,height,phase,radius,string,image
        !          6992: angle,length,height,phase,radius,string,image
        !          6993: 
        !          6994: equilibrium,angle,length,height,phase,radius,position,string,image
        !          6995: 
        !          6996: 
        !          6997: length,error,black,color,string,image,loop
        !          6998: 
        !          6999: angle,length,height,phase,radius,string,image
        !          7000: 
        !          7001: angle,length,height,radius,string
        !          7002: 
        !          7003: angle,length,height,radius,string
        !          7004: 
        !          7005: angle,length,height,phase,radius,string,image
        !          7006: 
        !          7007: angle,length,height,phase,radius,string,image
        !          7008: 
        !          7009: thin,diagram,tension,magnitude,mass,string,constant,pendulum,angle,component
        !          7010: maximum,motion,length,thin,diagram,tension,circular,magnitude,kinetic,mass,string,constant,pendulum,oscillation,angle,energy,force,component,conservation,potential,weight
        !          7011: shm,center,motion,period,distance,position,friction,density,speed,radius,air,newton
        !          7012: atropa,Indole,phenylalanine,and,delphinum,of,pt,morphine,isoprene,pyrrolizidine,microtubuli,berberine,rubiaceae,etc,tubocurarine,tyrosine,Aconitum,compounds,B,d,botany,lycopodium,ornithine,nicotine,lysine,toxic,indole,cytochalasine,tryptophane,biosynthesis,tryosine,belladona,cocaine,apocynaceae,Alkaloids,alkaloids,tropane,tyrosinederivatives,cytochasine,alkaloid,compound,ephedra,synthesis,furthur,vinca,derivatives
        !          7013: amplitude,oscillations,pendulum,angle,half,speed,coefficient
        !          7014: lignin,of,biosynthesis,quinones,Phenols,coumarins,botany,shikimate,coumarin,Flavonoids,flavonoids,Lignin
        !          7015: 
        !          7016: 
        !          7017: 
        !          7018: 
        !          7019: 
        !          7020: data,degrees,expansion,length,temperature,thermal
        !          7021: 
        !          7022: line,distance,speed,accelerates,graph
        !          7023: distance,graph,line,speed
        !          7024: botany
        !          7025: constant
        !          7026: strings,kg,ball,tension,magnitude,mass,string,angle,picture
        !          7027: integral,limit,divergent,diverge,converge,lim,series,pseries,convergent,comparison,test
        !          7028: divergent,diverge,converge,series,pseries,convergent,comparison
        !          7029: diverge,comparison,divergent,harmonic,converge,series,convergent
        !          7030: divergent,diverge,converge,series,pseries,convergent,comparison
        !          7031: error,number,taylor,ti,approximating,polynomial
        !          7032: maclaurin,terms,series
        !          7033: polynomial,series,lagrange,multipart,origin
        !          7034: error,taylor,polynomial
        !          7035: taylor,series,error,origin
        !          7036: error,estimate,accuracy,series
        !          7037: identity,integrating,remainder,verify
        !          7038: polynomial,error,examples,mathematica
        !          7039: taylor,coefficients,polynomial,function,quadratic
        !          7040: taylor,coefficients,polynomial,function
        !          7041: taylor,coefficients,polynomial,function
        !          7042: taylor,cubic,degree,coefficients,polynomial,function
        !          7043: taylor,polynomial,function
        !          7044: differentiation,integration,geometric,integrate,series
        !          7045: differentiation,integration,geometric,series
        !          7046: power,infinite,convergence,interval,ratio,series
        !          7047: power,infinite,convergence,interval,ratio,series
        !          7048: power,infinite,convergence,interval,ratio,series
        !          7049: root,power,infinite,convergence,interval,ratio,series
        !          7050: infinite,convergence,interval,ratio,series,power
        !          7051: convergence,ratio,series,power,interval
        !          7052: convergence,power,series
        !          7053: power,convergence,interval,series
        !          7054: infinite,convergence,ratio,series,power,interval
        !          7055: radiation,minimum,law,wave,density,constant
        !          7056: radiation,gas,direction,center,structure,temperature,intensity
        !          7057: radiation,light,lines,ray,absorption
        !          7058: carbon
        !          7059: mass,density,constant
        !          7060: direction,average,static,laws,density,volume,picture,physics
        !          7061: acceleration,accelerates,constant,speed,velocity
        !          7062: acceleration,planes,constant,mihr,speed,boeing
        !          7063: kg,circular,distance,mass,gravity,centripetal
        !          7064: kg,gravity,radius,mass,weight
        !          7065: distance,constant,speed,accelerate,accelerating
        !          7066: torque,string,weight
        !          7067: rna,dna,direction,polymerase,transcription,transcript
        !          7068: allies,bryohytes,fern,ferns,group,megaphylls,taxonomic
        !          7069: allies,bryohytes,fern,ferns,heterospores,megaphylls,photosynthesis,taxonomic,terminal
        !          7070: angular,center,circular,earth,perpendicular,rotation,speed,weight
        !          7071: 
        !          7072: 
        !          7073: 
        !          7074: 
        !          7075: chromosome,cystic,disease,diseases,fibrosis,gene,genetic,genetics,homozygous,mendel
        !          7076: beat,chromosome,elastic,genetic,genetics,inheritance,marfan,syndrome
        !          7077: disease,dna,genetic,genetics,life,pigmentosum,sun,xeroderma
        !          7078: beckers,duchennes,dystrophy,gene,genetics,muscular,protein
        !          7079: allele,alleles,dystrophy,genetics,inherit,inheritance,musular,pedigree,pedigrees
        !          7080: autosomal,chromosome,coagulation,disease,genetic,genetics,hemophilia,hemophiliac,inheritance,pedigree,protein,queen,victoria,victorias
        !          7081: average,data,energy,ev,gas,ideal,kinetic,molecule,molecules,speed,square,temperature
        !          7082: degrees,kelvin,temperature
        !          7083: celsius,cold,energy,fahrenheit,heat,heated,radiate,temperature
        !          7084: angular,constant,distance,elliptical,force,magnitude,maximum,minimum,momentum,orbit,planet,position,satellite,speed,spherical,torque
        !          7085: angular,center,constant,distance,force,magnitude,mass,maximum,minimum,momentum,orbit,picture,position,satellite,speed,spherical,torque
        !          7086: acceleration,circular,data,force,gravitational,gravity,kg,law,mass,masses,motion,newtons,orbit,period,radius,sun
        !          7087: 
        !          7088: acceleration,center,circular,data,earth,gravity,kg,law,mass,motion,orbit,period,radius,satellite
        !          7089: alleles,fundamental,genetics,independent,inheritance,laws,meiosis,probability,proteins,punnett,structure
        !          7090: acceleration,angular,center,circular,data,earth,gravity,kg,law,mass,motion,orbit,period,radius,satellite,speed,velocity
        !          7091: circular,density,orbit,period,satellite,spherical,surface
        !          7092: accelerating,center,centripetal,circular,earth,force,kg,mass,orbit,radius,satellite,speed
        !          7093: center,constant,data,distance,earth,force,gravitational,gravity,kg,law,length,mass,newtons,si,surface,unit,units
        !          7094: center,constant,data,distance,earth,force,gravitational,gravity,kg,law,length,mass,newtons,ratio,si,sun,surface,unit,units
        !          7095: air,energy,friction,height,kg,mass,maximum,radius,speed,spherical,surface
        !          7096: air,circular,energy,friction,height,kg,mass,maximum,orbit,radius,satellite,speed,spherical,surface
        !          7097: acceleration,conservation,constant,distance,energy,force,gravitational,gravity,isolated,kg,law,masses,motion,newtons,potential,speed,units
        !          7098: bullet,data,mass,radius,surface,velocity
        !          7099: acceleration,experiment,force,gravity,height,kg,mass,work
        !          7100: acceleration,experiment,force,gravity,height,kg,mass,work
        !          7101: force,gravitational,kg,law,magnitude,mass,net,newtons,spherical
        !          7102: center,distance,earth,force,gravitational,kg,length,magnitude,mass,ratio,si,sun,surface,unit,units
        !          7103: center,distance,earth,force,gravitational,kg,length,magnitude,mass,ratio,si,sun,surface,unit,units
        !          7104: circular,direction,earth,energy,formula,gravitational,gravity,kg,mass,orbit,potential,radius,satellite,speed,surface,work
        !          7105: air,circular,direction,earth,energy,formula,friction,gravitational,gravity,heat,kg,mass,maximum,orbit,potential,radius,satellite,speed,surface,terminal,velocity,work
        !          7106: 
        !          7107: 
        !          7108: 
        !          7109: amplitude,energy,frictional,mass,oscillates,oscillation,oscillator,period,spring,velocity
        !          7110: constant,frequency,kg,mass,resonance,spring
        !          7111: constant,frequency,kg,mass,oscillates,resonance,spring
        !          7112: center,circular,distance,inertia,kg,mass,moment,oscillations,pendulum,period,radius
        !          7113: acceleration,angular,center,distance,inertia,kg,magnitude,mass,metal,moment,perpendicular,plate
        !          7114: amplitude,block,bullet,conservation,constant,displacement,energy,equilibrium,frictionless,harmonic,kg,maximum,momentum,motion,speed,spring
        !          7115: Indiana,Jones,angle,center,degrees,distance,mass,pendulum
        !          7116: allele,black,cats,chromosome,color,cross,duchennes,dystrophy,gene,genetics,genotypes,maverick,muscular,product,protein,tabby,trait
        !          7117: genetics,genetic,cell,cross,generation,genetics,punnett,ratio,sexlinked,square,tigger,tortoiseshell
        !          7118: cat,cats,cross,generation,genetics,male,males,ratio,tabby,tortie,tortoiseshell
        !          7119: accelerating,acceleration,amplitude,body,frequency,harmonic,hz,length,metal,motion,number,oscillations,sound,speed,transverse,wave,waves
        !          7120: accelerating,acceleration,amplitude,body,frequency,harmonic,hz,length,metal,motion,number,oscillations,sound,speed,transverse,wave,waves
        !          7121: constant,density,distance,mass,massdensityvolume,position,rad,radius,variable,varies
        !          7122: angle,constant,density,distance,gravitational,kg,law,length,mass,maximum,newtons,oscillates,pendulum,period,position,radius,string,surface,weight
        !          7123: angle,center,circular,density,distance,kg,line,mass,pendulum,radius,ratio
        !          7124: amplitude,angle,center,circular,density,distance,kg,line,mass,oscillates,pendulum,period,radius,ratio
        !          7125: angle,constant,density,distance,gravitational,kg,law,length,mass,maximum,newtons,oscillates,pendulum,period,position,radius,string,surface,weight
        !          7126: angular,coil,conservation,constant,energy,equilibrium,force,kg,kinetic,law,maximum,oscillation,period,position,spring,velocity
        !          7127: amplitude,angle,angular,center,circular,density,distance,frequency,harmonic,kg,line,mass,maximum,motion,oscillates,pendulum,period,radius,ratio,shm,velocity
        !          7128: amplitude,angle,angular,center,circular,density,distance,frequency,harmonic,kg,line,mass,maximum,motion,oscillates,pendulum,period,radius,ratio,shm,velocity
        !          7129: 
        !          7130: 
        !          7131: compressed,constant,force,impulse,kg,law,masses,newtons,speed,spring
        !          7132: constant,kg,length,mass,spring
        !          7133: compressed,conservation,constant,direction,distance,energy,equilibrium,height,kg,mass,position,potential,spring,stored,velocity
        !          7134: compressed,conservation,constant,direction,distance,energy,equilibrium,height,kg,mass,position,potential,spring,stored,velocity
        !          7135: angle,beam,component,direction,equilibrium,force,inclined,kg,net,torque
        !          7136: angle,beam,component,direction,equilibrium,force,inclined,kg,magnitude,net,torque
        !          7137: angle,beam,kg,tension
        !          7138: length,thin,diagram,kinetic,mass,string,pendulum,energy
        !          7139: period,mass,pendulum,oscillation,radius
        !          7140: period,length,gravitational,mass,accelerates,constant,pendulum,field,earth,square,velocity
        !          7141: forces,length,law,elastic,oscillates
        !          7142: 
        !          7143: allolactose,induced,lac,lacpromoter,mutation,operator,operon,polymerase,repressor
        !          7144: 
        !          7145: 
        !          7146: magnitude,vector,angle,product,parallel,cross,lines
        !          7147: 
        !          7148: unit
        !          7149: 
        !          7150: limiting,factor, range of tolerance, pioneer organisms, succession
        !          7151: zoolankton,intertidal,marine,saltwater,estuary,photic,coastal,aphotic,freshwater,biome
        !          7152: primary,and secondary succession,colonization,conditions,limiting,secondary,tolerance,community,succession,homeostasis,climax
        !          7153: trophic,level, food web, abiotic, biotic, biosphere,life
        !          7154: parasitism,commensalism, mutualism
        !          7155: population,community,ecosystem
        !          7156: 
        !          7157: 
        !          7158: heterotroph,producers,cycling,mutualism,consumers,commensalism,carnivores,herbivore,scavenger,pyramid,autotroph,parasite,parasitism,chain,decomposers,trophic,symbiotic,webs
        !          7159: habitat,population,community,biotic,abiotic,ecology,biosphere,ecosystem
        !          7160: 
        !          7161: alleles,chromosomes,gametes,gene,genotype,meiotic,pea,plants
        !          7162: cross,punnett,square
        !          7163: beta,hydrogen,line,distance,lab,velocities,light,wavelengths,constant,lines,velocity,spectrum,gamma
        !          7164: magnitude,distance,constant,formula
        !          7165: 
        !          7166: color,data,experiment,mendel,plant,ratio,seed
        !          7167: 
        !          7168: 
        !          7169: 
        !          7170: center,structure,diagram,sun
        !          7171: average,line,mass,velocities,law,newtons,optical,nucleus
        !          7172: period,distance,rotational,ratio,velocity
        !          7173: structure,nuclear,light,diagram
        !          7174: energy,nuclear,lines,nucleus
        !          7175: number,motion,energy,chemical,nuclear,gravitational,atomic,neutrons,gravity,lenses,relativity,ions,atoms,collisions
        !          7176: picture,practice
        !          7177: 
        !          7178: radius,masses,center,period,mass,law,version,orbital,conversion,newtons,rotation,enter
        !          7179: masses,motion,mass,laws,gravity,newtons,rotation
        !          7180: 
        !          7181: Galaxies
        !          7182: 
        !          7183: 
        !          7184: 
        !          7185: accelerates,acceleration,angular,linear,revolution,rotation,rpm,velocity
        !          7186: Thermodynamics,system, surroundings, open, closed, first law of thermodynamics, exothermic, endothermic, second law of thermodynamics, entropy, free energy, exergonic, endergonic, coupling mechanisms, like(ATP), standard free energy change, equilibrium constant k,botany
        !          7187: open,botany,reduced,energy,enzymes,activation,systems,molecule,photosynthesis,cell,enzyme,molecules,metabolism
        !          7188: chromosome,dna,genetic,meiosis,protein
        !          7189: dna,protein,transcription,genes,gene
        !          7190: bases,purine,nucleotide,rna,guanine,cytosine,dna,base,polymer,uracil,nucleotides,thymine,transcription,ribonucleic,deoxyribose,pyrimidine,deoxyribonucleic,adenine,phosphate,ribose,nitrogenous,nucleoside,acid
        !          7191: 
        !          7192: 
        !          7193: maximum,distance,unit,speed,diagram,water,flow,si,direction,vector,perpendicular,cross,velocity
        !          7194: 
        !          7195: 
        !          7196: masses,kg,acceleration,motion,mass,unit,gravity,frictionless,relative
        !          7197: 
        !          7198: length,error,color,string,sun,black,image,loop
        !          7199: protein,specific,components,number,structure,nucleotides,gene,molecule,parallel,molecules,proteins,transcription,dna
        !          7200: jpg,image
        !          7201: 
        !          7202: 
        !          7203: 
        !          7204: 
        !          7205: 
        !          7206: 
        !          7207: 
        !          7208: 
        !          7209: 
        !          7210: 
        !          7211: 
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        !          7213: 
        !          7214: 
        !          7215: 
        !          7216: 
        !          7217: 
        !          7218: 
        !          7219: 
        !          7220: 
        !          7221: proteins
        !          7222: 
        !          7223: 
        !          7224: 
        !          7225: torque,constant,force,weight
        !          7226: 
        !          7227: distance,torque,force,weight
        !          7228: 
        !          7229: 
        !          7230: 
        !          7231: 
        !          7232: 
        !          7233: 
        !          7234: 
        !          7235: 
        !          7236: 
        !          7237: 
        !          7238: 
        !          7239: 
        !          7240: Newont2ndLaw,centerofmass,masses,magnitude,acceleration,motion,mass,law,gravity,pulley,accelerates,constant,newtons,body,force,frictionless,accelerate
        !          7241: 
        !          7242: 
        !          7243: center,charges,electric,energy,potential
        !          7244: chromosome,image,meiosis,vocabulary
        !          7245: data,inheritance,mendel,plant
        !          7246: alleles,color,data,height,inheritance,plant,practice,ratio,spring
        !          7247: 
        !          7248: 
        !          7249: 
        !          7250: 
        !          7251: ac,charge,charges,density,direction,electric,field,force,line,lines,magnitude,plane,positive
        !          7252: body,cell,cells,chromosome,cross,cycle,genetic,half,independent,lab,length,life,line,meiosis,number,pattern,plate,polar,position,process,separation
        !          7253: battery,capacitors,energy,number,parallel
        !          7254: 
        !          7255: 
        !          7256: addition,charge,charges,coulombs,electric,electron,field,force,law,linear,magnitude,position,si,solution,superposition,unit,units,vector
        !          7257: 
        !          7258: 
        !          7259: 
        !          7260: density,mass,volume
        !          7261: number,significant
        !          7262: charge,charges,data,dipole,electric,field,linear,magnitude,perpendicular,plane,position,superposition,vector
        !          7263: number,significant
        !          7264: 
        !          7265: 
        !          7266: angle,dipole,electric,field,magnitude,moment,net,torque,vector
        !          7267: 
        !          7268: 
        !          7269: 
        !          7270: 
        !          7271: 
        !          7272: 
        !          7273: 
        !          7274: 
        !          7275: 
        !          7276: 
        !          7277: 
        !          7278: 
        !          7279: 
        !          7280: 
        !          7281: 
        !          7282: 
        !          7283: 
        !          7284: charge,electric,field,force,positive
        !          7285: charge,charges,electric,field,force,magnitude
        !          7286: center,charge,electric,field,half,magnitude,radius,sphere,surface,volume
        !          7287: charge,conducting,distance,electric,field,gauss,law,length,magnitude,metal,parallel,plate,plates,square,surface
        !          7288: area,electric,field,flux,magnitude,surface
        !          7289: 
        !          7290: 
        !          7291: 
        !          7292: 
        !          7293: 
        !          7294: 
        !          7295: 
        !          7296: 
        !          7297: 
        !          7298: atom,charge,chemical,electron,electrons,experiment,magnitude,mass,neutrons,nucleus,particle,ratio,ray
        !          7299: 
        !          7300: 
        !          7301: 
        !          7302: 
        !          7303: 
        !          7304: 
        !          7305: charge,circular,coulombs,electric,field,law,magnitude,plane,radius
        !          7306: atomic,atoms,chemical,mass,number,particles,reactions
        !          7307: charge,circular,constant,coulombs,electric,electron,field,force,formula,frequency,law,magnitude,mass,maximum,oscillation,oscillations,plane,positive,radius,spring
        !          7308: conservation,chemical,mass
        !          7309: carbon,gas,mass
        !          7310: charge,component,conductor,conductors,density,electric,er,field,flux,gauss,law,metal,negative,net,positive,radius,solid,sphere,spheres,spherical,surface
        !          7311: area,charge,component,constant,electric,field,flux,gauss,law,net,parallel,positive
        !          7312: center,charge,electric,flux,volume
        !          7313: center,charge,conducting,density,distance,electric,field,magnitude,net,radius,sphere,spheres,surface
        !          7314: center,charge,conducting,conductor,spherical,surface
        !          7315: charge,charged,force,surface
        !          7316: electric,field,magnitude,potential
        !          7317: charge,electric,field,flux,length,magnitude
        !          7318: center,charge,conducting,conductor,coulombs,distance,electric,field,gauss,law,magnitude,positive,radius,solid,sphere,spherical
        !          7319: cross,crosses,genetics,genotype,independent,monohybrid,phenotypes,probabiity,probability,trihybrid
        !          7320: chromosome,crosses,gene,genetics,inheritance,monohybrid,trait,traits,transmission,trihybrid
        !          7321: chromosome,genetics,independent,inheritance,meiosis,mendels,ratio,ratios
        !          7322: chromatids,chromosome,crosses,crossover,dihybrid,genes,genetics,genotypic,independent,inheritance,meiosis,monohybrid,nonparental,nonsister,phenotypic,probability,punnett,squares,summary,trait,traits
        !          7323: cell,cells,cross,crosses,diagram,dihybrid,independent,inheritance,punnett,ratio,square
        !          7324: cell,cells,color,crosses,dihybrid,gamete,gametes,genotype,heterozygous,meiosis,metaphase,plant
        !          7325: alleles,cell,cross,crosses,diagram,dihybrid,gamete,gametes,genetics,genotypes,independent,probability,product,punnett,square
        !          7326: crosses,dihybrid,genotypes,inheritance,phenotypes,plant,practice,recessive,spring,wrinkled
        !          7327: charge,component,conducting,electric,field,gauss,law,radius,spherical,surface
        !          7328: charge,density,distance,electric,field,forces,magnitude,plane,position,surface,thin,work
        !          7329: 
        !          7330: 
        !          7331: 
        !          7332: 
        !          7333: 
        !          7334: 
        !          7335: 
        !          7336: 
        !          7337: 
        !          7338: 
        !          7339: 
        !          7340: 
        !          7341: 
        !          7342: 
        !          7343: 
        !          7344: 
        !          7345: 
        !          7346: 
        !          7347: 
        !          7348: 
        !          7349: 
        !          7350: 
        !          7351: 
        !          7352: 
        !          7353: 
        !          7354: 
        !          7355: 
        !          7356: 
        !          7357: 
        !          7358: 
        !          7359: 
        !          7360: 
        !          7361: 
        !          7362: 
        !          7363: 
        !          7364: 
        !          7365: 
        !          7366: 
        !          7367: 
        !          7368: 
        !          7369: 
        !          7370: 
        !          7371: 
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        !          7374: 
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        !          7379: 
        !          7380: 
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        !          7386: 
        !          7387: 
        !          7388: 
        !          7389: 
        !          7390: 
        !          7391: 
        !          7392: 
        !          7393: charge,charges,distance,electric,position,positive,potential
        !          7394: charge,conducting,distance,electric,energy,kg,kinetic,mass,motion,parallel,particle,plate,plates,positive,potential,vacuum
        !          7395: charge,distance,electrical,energy,kinetic,mass,particle,positive,potential,speed
        !          7396: charge,energy,kinetic
        !          7397: electrostatic,electric,electron,electrostatic,energy,field,magnitude,potential
        !          7398: electric,field,positive
        !          7399: angle,center,charge,charges,coulombs,data,diagram,electric,field,half,law,length,magnitude,potential,square
        !          7400: charge,constant,distance,electric,field,lines,magnitude,negative,parallel,positive,potential,work
        !          7401: charge,charges,distance,electric,energy,field,force,lines,magnitude,negative,plane,potential,potentials,proton,ratio,voltage,work
        !          7402: 
        !          7403: 
        !          7404: 
        !          7405: 
        !          7406: 
        !          7407: 
        !          7408: 
        !          7409: 
        !          7410: 
        !          7411: 
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        !          7414: 
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        !          7416: 
        !          7417: 
        !          7418: 
        !          7419: 
        !          7420: 
        !          7421: 
        !          7422: 
        !          7423: amperes,density,dissipated,electrical,electrons,formula,law,maximum,number,ohms,power,radius,resistance,resistivity,velocity,voltage,wire
        !          7424: circuit,electric,electricity,physics,power,units,voltage
        !          7425: amperes,circuit,energy,heat,ohms,power,resistance,unit
        !          7426: battery,dissipated,ohm,power,resistor
        !          7427: batteries,battery,circuit,dissipated,emf,energy,external,law,ohms,power,resistance,resistances,resistor,series,terminal,unit,voltage,voltages
        !          7428: 
        !          7429: 
        !          7430: 
        !          7431: 
        !          7432: 
        !          7433: 
        !          7434: 
        !          7435: 
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        !          7437: 
        !          7438: 
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        !          7440: 
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        !          7449: 
        !          7450: 
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        !          7459: 
        !          7460: 
        !          7461: 
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        !          7464: 
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        !          7469: 
        !          7470: 
        !          7471: 
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        !          7480: 
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        !          7514: 
        !          7515: 
        !          7516: 
        !          7517: 
        !          7518: 
        !          7519: 
        !          7520: 
        !          7521: average,coil,currents,dissipated,ideal,power,resistor,transformer,voltage
        !          7522: 
        !          7523: 
        !          7524: 
        !          7525: 
        !          7526: 
        !          7527: 
        !          7528: 
        !          7529: 
        !          7530: 
        !          7531: 
        !          7532: 
        !          7533: 
        !          7534: 
        !          7535: 
        !          7536: 
        !          7537: 
        !          7538: 
        !          7539: 
        !          7540: concept,foil,foils,options
        !          7541: 
        !          7542: 
        !          7543: 
        !          7544: 
        !          7545: 
        !          7546: 
        !          7547: 
        !          7548: 
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        !          7572: 
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        !          7589: 
        !          7590: 
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        !          7600: 
        !          7601: 
        !          7602: 
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        !          7606: 
        !          7607: 
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        !          7610: 
        !          7611: 
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        !          7619: 
        !          7620: 
        !          7621: 
        !          7622: 
        !          7623: 
        !          7624: 
        !          7625: 
        !          7626: 
        !          7627: neutrons,nucleus
        !          7628: neutrons,nucleons,nucleus,number,power,protons,radius,ratio
        !          7629: half,life,nuclei,number,radioactive,ratio
        !          7630: carbon,decay,equivalent,half,isolated,law,life,nuclei,number,radioactive,ratio,unit
        !          7631: decay,half,law,life,nuclei,number,radioactive,unit
        !          7632: atoms,decay,half,life,radioactive
        !          7633: coulomb,distance,electron,force,gravity,neutron,neutrons,nuclear,nuclei,proton,protons
        !          7634: 
        !          7635: 
        !          7636: amu,atom,atomic,electrons,energy,equivalence,mass,masses,mev,neutrons,nucleons,nucleus,protons,units
        !          7637: beta,charge,conserved,decay,energy,gamma,mechanical,nuclear,nuclei,nucleus,number,practice,quantum,radioactive
        !          7638: data,einstein,electron,electrons,energy,mass,masses,nucleus,period,power,proton,protons,reactions,series,sun,units,work
        !          7639: amu,average,combustion,data,energy,fission,fraction,mass,neutron,neutrons,nuclei,protons,ratio,uranium
        !          7640: gamma,alpha,beta,decay,gamma,particle,process,ray,rem,roentgen,unit
        !          7641: block,carnot,cycle,entropy,ice,kg,temperature
        !          7642: cycle,efficiency,engine,heat,work
        !          7643: 
        !          7644: 
        !          7645: 
        !          7646: 
        !          7647: 
        !          7648: 
        !          7649: expansion,gas,ideal,isothermal,moles,pressure,volume,work
        !          7650: capacitance,capacitor,capacitors,charge,charged,charges,energy,negative,parallel,plates,positive,potential,stored,voltage
        !          7651: capacitance,capacitor,capcitance,constant,dielectric,plate,plates
        !          7652: capacitance,capacitor,capacitors,charge,charges,circuit,circuits,component,data,equivalent,flow,ohm,parallel,potential,resistance,resistor,resistors,series,voltage
        !          7653: battery,capacitance,capacitor,charged,coulombs,dielectric,energy,parallel,plate,separation,stored,voltage
        !          7654: Current,addition
        !          7655: watts,volts,circuit,difference,dissipated,ohm,potential,power
        !          7656: current,volts ohms epsilon  circuit
        !          7657: battery,dissipated,length,parallel,picture,power,resistance,voltage,wire
        !          7658: batteries,circuit,circuits,dissipated,power,resistor,resistors,voltage
        !          7659: circuit,equivalent,resistance,resistors
        !          7660: currents,data,loop,magnitude,volts
        !          7661: battery,capacitance,charge,data,equivalent
        !          7662: circuit,components,law,ohms,parallel,resistance,resistors,series,voltage
        !          7663: ohm,volt amp resistor ,emf,potential
        !          7664: cycle,electrical,frequency,graph,hz,law,ohms,resistance,voltage
        !          7665: average,dissipated,power,resistor,voltage
        !          7666: capacitor,circuit,data,dissipated,energy,hz,impedance,inductance,inductor,resistor,resonance,voltage
        !          7667: ac,angle,average,circuit,degrees,dissipated,emf,frequency,impedance,inductance,inductor,magnitude,phase,power,ratio,resistor,series,unit,voltage,volts
        !          7668: ac,angle,average,circuit,degrees,dissipated,emf,frequency,impedance,inductance,inductor,magnitude,phase,power,ratio,resistor,series,unit,voltage,volts
        !          7669: capacitor,charge,charged,circuit,constant,displacement,energy,frequency,mass,mechanical,oscillation,oscillator,spring
        !          7670: capacitor,charge,circuit,energy,frequency,half,inductor,length,maximum,oscillation,period,plate,positive,stored
        !          7671: ac,capacitance,capacitor,circuit,emf,frequency,hz,rc,series
        !          7672: ac,average,capacitor,circuit,currents,dissipated,frequency,generator,hz,impedance,inductive,inductor,law,ohms,power,resistor,resonance,series,voltage,voltages
        !          7673: angular,circuit,degrees,frequency,ice,phase,picture,sinusoidal,voltage
        !          7674: angle,capacitance,capacitor,circuit,components,degrees,emf,frequency,hz,impedance,phase,resonance,series,sinusoidal,volts
        !          7675: capacitor,circuit,emf,frequency,inductor,resonance,sinusoidal,voltage
        !          7676: ac,angular,capacitance,circuit,frequency,impedance,inductance,reactance,resistance,resonance,rlc,voltage
        !          7677: block,frequency,glass,light,vacuum,velocity,wavelength
        !          7678: area,average,distance,electric,electromagnetic,field,flux,force,frequency,intensity,magnetic,power,pressure,radiation,surface,unit,wave,waves
        !          7679: conducting,electric,electromagnetic,magnetic,reflection,surface,vector,vectors,wave
        !          7680: component,direction,electric,electromagnetic,field,frequency,hz,intensity,light,magnetic,magnitude,maximum,negative,plane,speed,vector,wave,wire
        !          7681: 
        !          7682: average,distance,earth,intensity,power,radiation,sun
        !          7683: average,electric,field,intensity,laser,light,magnetic,metal,rms
        !          7684: absorption,angle,angles,average,electric,electromagnetic,field,ideal,intensity,law,polarized,polarizer,polarizers,reflection,transmission,wave
        !          7685: atmosphere,atom,atomic,circuits,electric,electromagnetic,electrons,fields,frequencies,frequency,gamma,infrared,light,nucleus,oscillating,polarized,radiation,rays,speed,sunburn,ultraviolet,vacuum,wavelength,wavelengths,waves,xrays
        !          7686: normal,angle,degrees,distance,law,refraction,speed,wavelength,waves
        !          7687: angle,displaced,displacement,distance,light,ray,refraction
        !          7688: focal,length concave convex virtual image real,diverging,focal,image,lens,virtual
        !          7689: c,air,angle,beam,degrees,distance,glass,laser,law,light,medium,plate,refraction,snells,speed,vacuum,velocity
        !          7690: air,angle,angles,beam,glass,light,medium,minimum,ray,rays,reflected,refraction,sunlight,surface
        !          7691: convex,focal,image,length,magnification,mirror,negative,virtual
        !          7692: angle,cross,degrees,parallel,rays,refraction
        !          7693: concave,convex,image,inverted,lens,mirror,optical,plane,virtual
        !          7694: distance,focal,glass,image,length,lens,magnifying,negative,virtual
        !          7695: air,concave,curvature,focal,height,image,inverted,length,lens,magnification,positive,thin,virtual
        !          7696: diagram,image,inverted,lens,mirror,optical,position,solid,virtual
        !          7697: concave,convex,distance,focal,image,mirror,plane,virtual
        !          7698: focal,image,inverted,length,lens,virtual
        !          7699: concave,distance,focal,height,image,inverted,length,magnification,magnitude,mirror,negative,radius
        !          7700: 
        !          7701: 
        !          7702: 
        !          7703: 
        !          7704: addition,angles,component,components,data,diagram,magnitude,negative,parallel,vector,vectors
        !          7705: density,inertia,length,moment,surface,thin
        !          7706: acceleration,air,angle,angular,center,component,density,friction,linear,mass,speed
        !          7707: acceleration,angle,angular,center,frictionless,inertia,kg,length,mass,moment,net,particles,plane,rotates,torque
        !          7708: angular,force,friction,radius,rotates,thin,velocity,wire
        !          7709: acceleration,frictionless,kg,linear,magnitude,mass,radius,thin,wire
        !          7710: accelerates,constant,earth,field,gravitational,length,mass,pendulum,period,square,velocity
        !          7711: block,density,floats,height,liquids,negative,positive,surface
        !          7712: constant,frequency,kg,mass,oscillates,resonance,spring
        !          7713: archimedes,buoyant,density,displaced,fluid,force,kg,mass,volume,water,weight
        !          7714: atom,configuration,electron,electrons,nucleus
        !          7715: atom,configuration,electron,electrons,nucleus
        !          7716: atom,carbon,electrons,hydrogen
        !          7717: 
        !          7718: browsable,browse,public,resource,search,searchable
        !          7719: constant,energy,expansion,gas,heat,ideal,isothermal,pressure,temperature,work
        !          7720: gas,atm,constant,expands,gas,ideal,law,pressure,temperature,volume
        !          7721: atp,cellular,chain,chemical,electron,membrane,reactions,respiration,transport
        !          7722: acceleration,angle,center,component,constant,direction,distance,magnitude,motion,particle,plane,polar,radius,speed,trigonometry,velocity
        !          7723: atp,balls,cellular,chain,electron,electrons,energy,gradient,man,position,potential,power,protons,respiration,transport,water
        !          7724: atom,atp,cellular,chain,electron,electrons,glucose,gradient,membrane,molecule,power,process,product,protein,proton,protons,respiration,transport,water
        !          7725: oxidation,reduction,cellular,chain,color,electron,electrons,energy,intensity,molecule,molecules,power,respiration,transport
        !          7726: distance,kg,length,mass,tension
        !          7727: db,frequency,hz,intensity,ratio,sound,wave
        !          7728: atp,carbon,cellular,chain,co,cycle,electron,formula,glucose,glycolysis,gradient,krebs,molecules,power,proton,respiration,series,transport,water
        !          7729: atom,atoms,atp,carbon,cellular,co,glucose,glycolysis,molecule,molecules,reactions,respiration
        !          7730: atp,energy,glucose,glycolysis,molecule,molecules
        !          7731: 
        !          7732: 
        !          7733: 
        !          7734: 
        !          7735: ambient,average,concert,db,factor,graph,intensities,intensity,music,noise,rock,sound,speaker,work
        !          7736: atp,cellular,co,cycle,glucose,glycolysis,krebs,molecules,nad,product,reactions,respiration
        !          7737: aerobic,anaerobic,glycolysis,metabolism,respiration
        !          7738: gradient,minimum
        !          7739: 
        !          7740: 
        !          7741: 
        !          7742: 
        !          7743: 
        !          7744: 
        !          7745: 
        !          7746: 
        !          7747: 
        !          7748: 
        !          7749: 
        !          7750: 
        !          7751: frequency,hz,sound
        !          7752: angle,degrees,direction,motion,plane,wave
        !          7753: db,intensity,law,line,power,sound,square
        !          7754: air,doppler,frequency,hz,sound,speed
        !          7755: 
        !          7756: 
        !          7757: 
        !          7758: 
        !          7759: 
        !          7760: 
        !          7761: 
        !          7762: 
        !          7763: 
        !          7764: constant,line
        !          7765: 
        !          7766: maximum,minimum
        !          7767: average,gradient,graph
        !          7768: 
        !          7769: average,instantaneous
        !          7770: 
        !          7771: 
        !          7772: 
        !          7773: 
        !          7774: 
        !          7775: 
        !          7776: 
        !          7777: 
        !          7778: 
        !          7779: 
        !          7780: 
        !          7781: 
        !          7782: 
        !          7783: 
        !          7784: 
        !          7785: 
        !          7786: 
        !          7787: 
        !          7788: particle,position,velocity
        !          7789: 
        !          7790: 
        !          7791: 
        !          7792: 
        !          7793: area,solid,volume
        !          7794: atoms,doppler,earth,electromagnetic,frequencies,frequency,hydrogen,light,radiation,ratio,speed,vacuum,wavelength,waves
        !          7795: accelerates,acceleration,constant,direction,doppler,frequency,hz,linear,motion,sound,sounds,speed
        !          7796: hydrogen,line,particle,rotation,speed
        !          7797: conducting,crosses,direction,field,magnetic,parallel,plane,wire
        !          7798: center,currents,field,force,free,magnetic,position,rotation,wire
        !          7799: constant,gas,ideal,moles,number,pressure,temperature,work
        !          7800: frequency,hz,speed
        !          7801: 
        !          7802: 
        !          7803: lens,moon,resolve
        !          7804: conservation,constant,diagram,energy,gas,heat,ideal,pressure,process,processes,static,volume,work
        !          7805: lens,units
        !          7806: circular,conducting,constant,emf,field,induced,law,loop,magnetic,magnitude,ohms,perpendicular,plane,radius,resistor,series,voltage
        !          7807: coil,constant,emf,field,force,free,inductance,loop,magnetic,resistance,speed,square,wire
        !          7808: area,circuit,conducting,constant,direction,dissipated,dissipation,electrical,emf,energy,external,faradays,field,flow,flux,force,friction,induced,law,loop,magnetic,mechanical,net,ohms,plane,positive,power,product,resistance,velocity,work
        !          7809: cross,genetics,probability,ratio
        !          7810: coil,direction,faradays,field,induced,law,loop,magnet,magnetic
        !          7811: 
        !          7812: 
        !          7813: 
        !          7814: 
        !          7815: 
        !          7816: circular,emf,field,induced,loop,magnetic,plane,radius
        !          7817: rms,circular,coil,conducting,diameter,emfemf,field,frequency,hz,magnetic,perpendicular,radius,rotates
        !          7818: direction,energy,inductor,stored
        !          7819: energy,field,magnetic,radius,solenoid,stored,wire
        !          7820: resistor,battery,capacitor,capacitors,charge,inductor,resistor,voltage
        !          7821: circuit,battery,changes,circuit,conservation,dissipated,dissipation,energy,formula,inductance,inductor,lc,power,resistance,resistor,stored,voltage
        !          7822: constant,inductor,voltage
        !          7823: constant,inductor,voltage
        !          7824: circular,coil,constant,cross,emf,faradays,inductance,law,magnitude,radius,solenoid,work
        !          7825: circular,cross,density,energy,field,inductance,inductor,length,magnetic,radius,solenoid,stored
        !          7826: battery,circuit,emf,ratio
        !          7827: heat,cold,coefficient,engine,heat,ideal,performance,reservoir,work
        !          7828: carnot,carnot,coefficient,cycle,efficiency,engine,heat,performace,refrigerator,reservoir,reservoirs,temperatures,work,works
        !          7829: carnot,carnot,coefficient,cycle,efficiency,engine,heat,performace,refrigerator,reservoir,reservoirs,temperatures,work
        !          7830: carnot,cycle,efficiency,engine,heat,minimum,power,reservoir,temperature,temperatures
        !          7831: negative,positive,thermodynamic
        !          7832: average,data,diagram,energy,gas,heat,ideal,law,moles,monoatomic,pressure,process,thermodynamics,work
        !          7833: doping,amplifier,halfwave,ntype,ptype,rectifier
        !          7834: 
        !          7835: 
        !          7836: 
        !          7837: 
        !          7838: 
        !          7839: motion,strobe
        !          7840: distance,time,graph
        !          7841: distance,time,graph
        !          7842: distance,time,graph
        !          7843: distance,time, graph
        !          7844: speed,time, graph, distance, average speed, instantaneous speed
        !          7845: speed,time, graph, distance, average speed, instantaneous speed
        !          7846: speed,time, graph, distance, average speed, instantaneous speed
        !          7847: speed,time, graph, distance, average speed, instantaneous speed
        !          7848: average,distance,frog,graph,motion,slope,speed,velocity
        !          7849: 
        !          7850: web,page,html,choas
        !          7851: work
        !          7852: 
        !          7853: distance,lens,optics,thin,virtual,mirrors,mirror,image,focal,converging
        !          7854: lens,netscape,optics,thin,mirror
        !          7855: numeric,problem,sample
        !          7856: 
        !          7857: perimeter,rectangle
        !          7858: example,essay
        !          7859: 
        !          7860: web,page,html,choas
        !          7861: relativistic,crab,starship,relativity,speed
        !          7862: 
        !          7863: 
        !          7864: problem
        !          7865: 
        !          7866: 
        !          7867: 
        !          7868: floats,fluid,fisherman,displaced,archimedes
        !          7869: 
        !          7870: 
        !          7871: optics
        !          7872: 
        !          7873: notation,exponent,powers,decimal,scientific
        !          7874: algebra
        !          7875: 
        !          7876: optics
        !          7877: algebra,one unknown
        !          7878: 
        !          7879: 
        !          7880: expression,rule,algebra,golden,variable
        !          7881: 
        !          7882: 
        !          7883: 
        !          7884: 
        !          7885: 
        !          7886: 
        !          7887: 
        !          7888: ball,moon,height,gravity,acceleration,fall
        !          7889: math,product,arithmetic,operation,sum
        !          7890: algebra,set
        !          7891: geometry,radius,circumference,circle,area
        !          7892: integer,simple,algebra
        !          7893: calculator,root,scientific,skills,square
        !          7894: import,standard unit formatting
        !          7895: 
        !          7896: 
        !          7897: java,animator,physlet,javascript
        !          7898: 
        !          7899: velocity,motion,projectile
        !          7900: 
        !          7901: 
        !          7902: Standard,Units
        !          7903: area,density
        !          7904: coordinate,distance,coordinates
        !          7905: 
        !          7906: 
        !          7907: displaced,water
        !          7908: relativity
        !          7909: 
        !          7910: 
        !          7911: 
        !          7912: 
        !          7913: 
        !          7914: 
        !          7915: 
        !          7916: exponential,notation,scientific
        !          7917: 
        !          7918: algebra,one,problem,review,unknown
        !          7919: 
        !          7920: 
        !          7921: number,positive,power
        !          7922: 
        !          7923: 
        !          7924: 
        !          7925: unknown,algebra,problem,one,review
        !          7926: 
        !          7927: 
        !          7928: 
        !          7929: 
        !          7930: 
        !          7931: 
        !          7932: 
        !          7933: 
        !          7934: 
        !          7935: 
        !          7936: 
        !          7937: 
        !          7938: 
        !          7939: 
        !          7940: 
        !          7941: 
        !          7942: 
        !          7943: 
        !          7944: 
        !          7945: 
        !          7946: 
        !          7947: 
        !          7948: 
        !          7949: 
        !          7950: 
        !          7951: 
        !          7952: 
        !          7953: 
        !          7954: 
        !          7955: 
        !          7956: 
        !          7957: 
        !          7958: 
        !          7959: 
        !          7960: 
        !          7961: 
        !          7962: 
        !          7963: 
        !          7964: 
        !          7965: 
        !          7966: 
        !          7967: 
        !          7968: 
        !          7969: 
        !          7970: vector
        !          7971: 
        !          7972: 
        !          7973: 
        !          7974: 
        !          7975: 
        !          7976: 
        !          7977: 
        !          7978: 
        !          7979: 
        !          7980: 
        !          7981: 
        !          7982: 
        !          7983: 
        !          7984: 
        !          7985: 
        !          7986: 
        !          7987: 
        !          7988: 
        !          7989: 
        !          7990: 
        !          7991: 
        !          7992: 
        !          7993: 
        !          7994: 
        !          7995: 
        !          7996: 
        !          7997: 
        !          7998: 
        !          7999: 
        !          8000: 
        !          8001: 
        !          8002: 
        !          8003: 
        !          8004: 
        !          8005: 
        !          8006: 
        !          8007: 
        !          8008: 
        !          8009: 
        !          8010: 
        !          8011: 
        !          8012: 
        !          8013: 
        !          8014: 
        !          8015: 
        !          8016: 
        !          8017: 
        !          8018: 
        !          8019: 
        !          8020: 
        !          8021: 
        !          8022: 
        !          8023: 
        !          8024: 
        !          8025: 
        !          8026: 
        !          8027: 
        !          8028: 
        !          8029: 
        !          8030: 
        !          8031: 
        !          8032: 
        !          8033: analysis,dimension,equation
        !          8034: angle,triangle,trigonometry
        !          8035: area,density,earth,mass,planet,sphere,surface,volume
        !          8036: area,earth,mass,planet,sphere,surface,volume
        !          8037: assume,dollar,page,paper,textbook,thickness
        !          8038: 
        !          8039: volumes,area,sphere,volume,surface,ratio,areas
        !          8040: acre,cubic,unit,conversion,pyramid,units
        !          8041: gallon,wall,area,thickness,paint
        !          8042: 
        !          8043: 
        !          8044: 
        !          8045: area,balloon,surface,volume
        !          8046: 
        !          8047: 
        !          8048: sample,home,information
        !          8049: 
        !          8050: area,volume
        !          8051: box,area
        !          8052: geometry
        !          8053: 
        !          8054: 
        !          8055: 
        !          8056: 
        !          8057: 
        !          8058: 
        !          8059: 
        !          8060: 
        !          8061: 
        !          8062: 
        !          8063: 
        !          8064: 
        !          8065: 
        !          8066: 
        !          8067: 
        !          8068: 
        !          8069: 
        !          8070: 
        !          8071: 
        !          8072: 
        !          8073: 
        !          8074: 
        !          8075: 
        !          8076: 
        !          8077: 
        !          8078: 
        !          8079: 
        !          8080: 
        !          8081: 
        !          8082: 
        !          8083: 
        !          8084: 
        !          8085: vibrates,mass,spring,resonance,frequency
        !          8086: pendulum,compressed,ball,energy,mass,work,spring,ballistic,conservation
        !          8087: range,toy,spring,gun,speed,fired
        !          8088: wave,wavelength,harmonic,traveling,tension,frequency
        !          8089: constructive,reflected,energy,amplitudes,waves,string,interference,pulse,transverse,speed,traveling,mechanical
        !          8090: pendulum,period,temperature,aluminum,clock,weight
        !          8091: hangs,mass,elongated,spring
        !          8092: 
        !          8093: 
        !          8094: longitudinal,guitar,wave,sound,spring,string,transverse,compression
        !          8095: 
        !          8096: guitar,mass,wave,string,transverse
        !          8097: travels,streched,string,calculate
        !          8098: 
        !          8099: pitch,direction,distance,speeds,doppler,choose,speed,frequency
        !          8100: 
        !          8101: 
        !          8102: 
        !          8103: youngs,modulus,density,quartz,intensity,calculate
        !          8104: band,sound,concert,rock,openair,roll,intensity
        !          8105: siren,doppler,ambulance,traveling,moving,observer,frequency
        !          8106: 
        !          8107: 
        !          8108: 
        !          8109: oscillation,period,wave,string,standing,properties,tension,frequency
        !          8110: 
        !          8111: 
        !          8112: 
        !          8113: 
        !          8114: aluminum,pendulum,grandfather,period,clock,temperature,weight
        !          8115: attract,induced,conductor,charges,negative,charge,attracted,surface
        !          8116: charge,force,charged,sphere,electron
        !          8117: pattern,field,charge,fields,geometrical,electric,magnitude,vector
        !          8118: electric,protons,force,nucleus
        !          8119: electric,field
        !          8120: electric,center,charges,angles
        !          8121: electric,equilibrium,ball,charge,rubber,suspended,string,uniform
        !          8122: electric,coming,direction,acceleration,speed,uniform,traveling,electron
        !          8123: folded,rubbed,silk,negatively,hang,electrons,negative,string,gold,glass
        !          8124: electric,position,charge,force
        !          8125: 
        !          8126: earth,stationary,gravitational,separation,electrostatic,force,electron,electrons
        !          8127: 
        !          8128: 
        !          8129: point,electric,field,charge
        !          8130: Woodcut
        !          8131: 
        !          8132: 
        !          8133: 
        !          8134: electric,magnitude,corner,charges,corners,data
        !          8135: 
        !          8136: 
        !          8137: 
        !          8138: 
        !          8139: 
        !          8140: 
        !          8141: 
        !          8142: 
        !          8143: 
        !          8144: 
        !          8145: 
        !          8146: 
        !          8147: 
        !          8148: 
        !          8149: 
        !          8150: 
        !          8151: 
        !          8152: 
        !          8153: 
        !          8154: 
        !          8155: 
        !          8156: 
        !          8157: 
        !          8158: 
        !          8159: 
        !          8160: 
        !          8161: 
        !          8162: 
        !          8163: 
        !          8164: 
        !          8165: 
        !          8166: 
        !          8167: 
        !          8168: 
        !          8169: 
        !          8170: 
        !          8171: 
        !          8172: 
        !          8173: 
        !          8174: 
        !          8175: 
        !          8176: 
        !          8177: 
        !          8178: 
        !          8179: 
        !          8180: 
        !          8181: 
        !          8182: 
        !          8183: 
        !          8184: 
        !          8185: 
        !          8186: 
        !          8187: 
        !          8188: 
        !          8189: 
        !          8190: 
        !          8191: 
        !          8192: 
        !          8193: 
        !          8194: 
        !          8195: 
        !          8196: 
        !          8197: 
        !          8198: 
        !          8199: 
        !          8200: 
        !          8201: 
        !          8202: 
        !          8203: 
        !          8204: 
        !          8205: 
        !          8206: 
        !          8207: 
        !          8208: 
        !          8209: 
        !          8210: 
        !          8211: 
        !          8212: 
        !          8213: 
        !          8214: 
        !          8215: 
        !          8216: 
        !          8217: 
        !          8218: 
        !          8219: 
        !          8220: 
        !          8221: 
        !          8222: 
        !          8223: 
        !          8224: 
        !          8225: 
        !          8226: 
        !          8227: 
        !          8228: 
        !          8229: 
        !          8230: 
        !          8231: 
        !          8232: 
        !          8233: 
        !          8234: 
        !          8235: 
        !          8236: 
        !          8237: 
        !          8238: 
        !          8239: 
        !          8240: 
        !          8241: 
        !          8242: 
        !          8243: 
        !          8244: 
        !          8245: 
        !          8246: 
        !          8247: 
        !          8248: 
        !          8249: 
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        !          8253: 
        !          8254: 
        !          8255: 
        !          8256: 
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        !          8258: 
        !          8259: 
        !          8260: 
        !          8261: 
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        !          8263: 
        !          8264: 
        !          8265: 
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        !          8268: 
        !          8269: 
        !          8270: 
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        !          8273: 
        !          8274: 
        !          8275: 
        !          8276: 
        !          8277: 
        !          8278: 
        !          8279: 
        !          8280: 
        !          8281: 
        !          8282: 
        !          8283: 
        !          8284: 
        !          8285: 
        !          8286: 
        !          8287: 
        !          8288: 
        !          8289: 
        !          8290: 
        !          8291: 
        !          8292: 
        !          8293: 
        !          8294: 
        !          8295: 
        !          8296: energy,field,charge,electric,magnitude,direction,potential
        !          8297: stretched,force,spring
        !          8298: 
        !          8299: 
        !          8300: 
        !          8301: pendulum,oscillation,period,tower,lighthouse
        !          8302: 
        !          8303: 
        !          8304: mass,length,wave,string,speed,tension
        !          8305: amplitude,motion,spring,calculate
        !          8306: 
        !          8307: 
        !          8308: 
        !          8309: 
        !          8310: 
        !          8311: 
        !          8312: 
        !          8313: 
        !          8314: 
        !          8315: 
        !          8316: 
        !          8317: 
        !          8318: 
        !          8319: 
        !          8320: 
        !          8321: 
        !          8322: 
        !          8323: 
        !          8324: 
        !          8325: 
        !          8326: 
        !          8327: 
        !          8328: 
        !          8329: 
        !          8330: 
        !          8331: 
        !          8332: 
        !          8333: 
        !          8334: 
        !          8335: 
        !          8336: 
        !          8337: 
        !          8338: 
        !          8339: 
        !          8340: positive,field,work,parallel,plate,force,plates,electric,magnitude,charged,negative,potential,electron
        !          8341: 
        !          8342: 
        !          8343: electric,conducting,wire,flow
        !          8344: 
        !          8345: 
        !          8346: kg,protons,field,charge,proton,neutron,parallel,force,lines,radius,atom,magnitude,acceleration,mass,magnetic,perpendicular,neutrons,particle,curvature,velocity,nucleus
        !          8347: 
        !          8348: 
        !          8349: 
        !          8350: 
        !          8351: 
        !          8352: 
        !          8353: 
        !          8354: reflected,vacuum,wave
        !          8355: reflected,waves,wave,sound,velocity
        !          8356: radiation,electromagnetic
        !          8357: 
        !          8358: 
        !          8359: wavelength,light,air,water,glass
        !          8360: light,wave,sunlight,beam,water
        !          8361: photograph,lens,mirror,image
        !          8362: wavelength,degrees,refraction,colors,light,beam,glass
        !          8363: wavelength,light,refraction,medium
        !          8364: colors,light
        !          8365: rainbow,refraction,light
        !          8366: distance,lens,mirror,image
        !          8367: reflected,eyes,mirror,plane
        !          8368: minimum,mirror
        !          8369: lens,length,image,focal
        !          8370: lens,length,image,focal,inverted
        !          8371: converging,lens,diverging,image
        !          8372: mirror,image
        !          8373: angle,angles,refraction,light,air,surface,polarized
        !          8374: pattern,maximum,slits,angle,distance,wavelength,ratio,formula,laser,separation,interference,constant
        !          8375: slits,angle,direction,light,beam
        !          8376: slits,distance,wavelength,light
        !          8377: slit,pattern,wavelength,light,separation,intensity
        !          8378: pattern,maximum,slits,distance,maxima,wavelength,laser,slit,direction,light,intensity
        !          8379: minimum,pattern,maximum,diffraction,slits,angle,maxima,mu,wavelength,laser,slit,perpendicular,light,separation,interference,intensity,data
        !          8380: maximum,wavelength,reflection,refraction,light,air,liquid,surface
        !          8381: distance,eye,power
        !          8382: lens,length,picture,image,focal
        !          8383: laser,pattern,number,slits,distance,wavelength,light,separation,intensity,units
        !          8384: eye,diopters,power
        !          8385: wavelength,refraction
        !          8386: wavelength,eye,refraction
        !          8387: minimum,angle,eye
        !          8388: wavelength,light,parallel,air,cell,significant
        !          8389: period,speed
        !          8390: 
        !          8391: relativity
        !          8392: vacuum,momentum,photon,light,speed,electron
        !          8393: kinetic,energy,proton,speed
        !          8394: direction,motion,angle,length,degrees,speed,frame
        !          8395: kg,mass,unit,density,volume,speed
        !          8396: photons,radiation,kinetic,energy,photon,surface,hz,metal,beam,electron,frequency
        !          8397: energy,color,wavelength,photon,light,constant,speed,frequency,units
        !          8398: photons,laser,energy,photon,light,frequency
        !          8399: compton
        !          8400: free,kinetic,angle,energy,wavelength,photon,degrees,angles,electron
        !          8401: kinetic,energy,wavelength,electron
        !          8402: kinetic,energy,ev,wavelength,speed,electron,velocity,electrons
        !          8403: photoelectric
        !          8404: radiation,wavelength,sun,temperature
        !          8405: quantum
        !          8406: 
        !          8407: 
        !          8408: power,intensity
        !          8409: 
        !          8410: car,doppler,train
        !          8411: 
        !          8412: 
        !          8413: 
        !          8414: 
        !          8415: 
        !          8416: pipe,organ,sound
        !          8417: 
        !          8418: 
        !          8419: 
        !          8420: 
        !          8421: 
        !          8422: 
        !          8423: waves,sound simple harmonic motion
        !          8424: 
        !          8425: 
        !          8426: 
        !          8427: 
        !          8428: 
        !          8429: 
        !          8430: 
        !          8431: 
        !          8432: 
        !          8433: 
        !          8434: 
        !          8435: 
        !          8436: Sound,Organ Pipe applet
        !          8437: 
        !          8438: 
        !          8439: 
        !          8440: 
        !          8441: 
        !          8442: 
        !          8443: 
        !          8444: 
        !          8445: 
        !          8446: 
        !          8447: pendulum,force,velocity
        !          8448: 
        !          8449: 
        !          8450: office,carman,class
        !          8451: 
        !          8452: 
        !          8453: 
        !          8454: 
        !          8455: 
        !          8456: reference,line,physics
        !          8457: 
        !          8458: 
        !          8459: 
        !          8460: 
        !          8461: 
        !          8462: 
        !          8463: 
        !          8464: 
        !          8465: 
        !          8466: 
        !          8467: 
        !          8468: 
        !          8469: 
        !          8470: 
        !          8471: 
        !          8472: 
        !          8473: 
        !          8474: 
        !          8475: 
        !          8476: 
        !          8477: 
        !          8478: 
        !          8479: 
        !          8480: 
        !          8481: 
        !          8482: 
        !          8483: 
        !          8484: 
        !          8485: 
        !          8486: 
        !          8487: 
        !          8488: 
        !          8489: 
        !          8490: 
        !          8491: 
        !          8492: 
        !          8493: 
        !          8494: fahrenheit,temperature,celsius
        !          8495: body,celsius
        !          8496: air,force,pressure,window
        !          8497: atmospheric,air,box,force,evacuated,pressure,airtight
        !          8498: difference,hydrostatic,brain,blood,foot,person,pressure
        !          8499: pipe,area,piston,force
        !          8500: floats,wood,submerged,oil,density,water,block
        !          8501: casting,density,volume,iron,air,water,weighs
        !          8502: continuity,fluids,lawn,sprinkler,holes,speed,hose
        !          8503: bernoulli,pipe,area,speed,moving,pressure,water,flow
        !          8504: flow,continuity,rainfall,area,evaporation,precipitation,speed,drains,river
        !          8505: 
        !          8506: 
        !          8507: car,bounce,springs,frequency
        !          8508: pitch,freq,doppler,shift,frequency
        !          8509: archer,uniformly,work,spring,string,bow,force
        !          8510: 
        !          8511: 
        !          8512: 
        !          8513: 
        !          8514: 
        !          8515: motion,fields,electrical,waves,sound,vibrations,practice,harmonic
        !          8516: 
        !          8517: 
        !          8518: magnitude,projections,vector,component,addition,calulate
        !          8519: 
        !          8520: 
        !          8521: 
        !          8522: p202w02
        !          8523: 
        !          8524: shm,circular,time,motion,vibrations,physlet
        !          8525: total,acceleration,kinetic,energy,spring,potential,harmonic,force,velocity
        !          8526: charge,electrostatic,force,magnitude
        !          8527: positive,forces,coulomb,picture,force
        !          8528: electric,magnitude,positive,charges,angle,negative,field,picture
        !          8529: 
        !          8530: positive,angle,field,charge,picture,electric,magnitude,charges,negative
        !          8531: wool,center,length,separated,balloon,electrostatic,hang,force,quicklab,doorway,balloons,th,light,string
        !          8532: physics,units
        !          8533: OU,Physics 202
        !          8534: field,charge,lines,efield,potential
        !          8535: 
        !          8536: 
        !          8537: forces,field,davidson,college,electric,applet,charges,potential,physics
        !          8538: co,si,ac
        !          8539: 
        !          8540: 
        !          8541: 
        !          8542: 
        !          8543: 
        !          8544: 
        !          8545: 
        !          8546: 
        !          8547: 
        !          8548: 
        !          8549: 
        !          8550: co,ac
        !          8551: positive,line,field,charge,force,lines,electric,magnitude,direction,charges,density,plane
        !          8552: electric,energy,field,charge,parallel,potential,uniform,body,lines
        !          8553: charge,parallel,plate,metal,plates,area,power,air,surface,capacitor
        !          8554: capacitors,capacitance,parallel,equivalent
        !          8555: capacitance,voltage,charged,battery,capacitor
        !          8556: maximum,mu,charge,magnitude,capacitance,field,plates,electric,earth,area,air,potential,capacitor
        !          8557: charge,picture,battery,potential,capacitor
        !          8558: 
        !          8559: physics,units
        !          8560: 
        !          8561: 
        !          8562: 
        !          8563: 
        !          8564: battery,equivalent,resistance,series,resistor
        !          8565: positive,negative,charge,battery,external,electron,electrons,wire,terminal
        !          8566: resistivity,conductor,metal
        !          8567: household,electric,cost,toaster,power,light,bulbs,potential,radio,resistance,calculate,electrical,data
        !          8568: electric,power,light,potential,resistance,circuit,electrical,data
        !          8569: discharge,charged,average,energy,amperes,charge,battery,resistance,flow,resistor,process
        !          8570: maximum,number,light,circuit
        !          8571: lab,parallel,equivalent,potential,resistance,circuit,series,resistors,data,resistor
        !          8572: dissipated,ohms,emf,joules,energy,unit,law,power,resistances,battery,external,voltages,resistance,circuit,series,voltage,resistor,terminal,batteries
        !          8573: dissipated,ohms,maximum,dissipation,power,work,parallel,volts,battery,equivalent,resistance,circuit,series,resistors,voltage,wire,resistor
        !          8574: dissipated,ohms,maximum,dissipation,volt,power,work,parallel,battery,equivalent,resistance,circuit,series,resistors,voltage,wire,resistor
        !          8575: area,charge,air,circuit
        !          8576: positive,period,negative,unit,charge,cell,ions
        !          8577: maximum,resistance,voltage
        !          8578: length,resistance
        !          8579: radius,length,potential,wire
        !          8580: area,length,temperature,resistance,wire
        !          8581: resistivity,area,coefficient,temperature,resistance,units,wire
        !          8582: moment,resistance,voltage,units
        !          8583: transmission,line,distance,power,resistance,units
        !          8584: area,temperature,wire,resistor
        !          8585: electricity,series,units
        !          8586: resistivity,area,length,power,battery,wire,resistor
        !          8587: average,sphere,charge,angular,rotating,string,speed
        !          8588: circular,mass,height,resistance
        !          8589: resistivity,length,density,solid,conducting,resistance,wire
        !          8590: radius,stress,length,resistance,wire
        !          8591: picture,equivalent,resistance,circuit
        !          8592: picture,equivalent,resistance,circuit
        !          8593: picture,equivalent,resistance,circuit,flow,resistor
        !          8594: picture,resistor
        !          8595: Kirchoff,emf,battery,picture,circuit
        !          8596: power,battery,picture,resistors,voltage,resistor,terminal
        !          8597: Kirchoff,magnitude,battery,picture,potential,resistance,circuit,resistor
        !          8598: emf,maximum,charge,constant,capacitor,circuit,series,resistor
        !          8599: capacitance,battery,capacitor,circuit,series,voltage,resistor
        !          8600: ohms,components,law,parallel,resistance,circuit,series,resistors,voltage,ohm
        !          8601: kirchoff,diagram,resistors,voltage,direction,kirchhoffs,loop
        !          8602: vibration,fields,work,series,electrical,electrostatics,electric,waves,sound,vibrations,practice,elect
        !          8603: physics,resistance,units,ohm
        !          8604: 
        !          8605: 
        !          8606: 
        !          8607: 
        !          8608: 
        !          8609: 
        !          8610: 
        !          8611: 
        !          8612: dissipated,area,length,power,parallel,battery,resistance,voltage,wire
        !          8613: node,rule,kirchoff
        !          8614: angle,field,torque,magnitude,direction,area,magnetic,loop
        !          8615: positive,line,field,charge,force,direction,earth,magnetic
        !          8616: angle,length,field,force,wire,direction,magnetic
        !          8617: magnitude,area,field,magnetic,picture,torque,coil,plane
        !          8618: series,deflection,galvanometer,potential,resistance
        !          8619: distance,field,parallel,currents,picture,conductors,conductor,magnetic
        !          8620: equilibrium,distance,parallel,currents,picture,conductors,direction,conductor,mass,position,linear,density
        !          8621: field,fields,picture,plates,deflection,radius,electric,charged,mass,magnetic,velocity
        !          8622: angle,field,torque,wire,radius,circular,direction,magnetic,external,coil,plane,loop
        !          8623: lorentz,force vectors right hand rule,field,diagram,direction,charged,magnetic,particle
        !          8624: ohm,physics,resistance,units
        !          8625: 
        !          8626: 
        !          8627: Faraday,s Law ,field,radius,emf,induced,magnetic,loop
        !          8628: Faraday,s Law,field,radius,circular,emf,induced,direction,magnetic,plane,loop,resistor
        !          8629: wire,circular,emf,induced,s,Law,square,flux,coil,cross,Faraday,solenoid
        !          8630: Faraday,s Law,field,radius,circular,emf,induced,average,magnetic,coil,plane
        !          8631: radius,circular,emf,induced,s,Law,length,field,picture,Faraday,loop,resistor,solenoid
        !          8632: Faraday,s Law,maximum,field,picture,wire,emf,induced,component,area,rotates,magnetic,square,coil,loop
        !          8633: electric,induction,emf,induced,magnitude,electromagnetic,law,field,magnetic,rotating,faradays,flux,coil,wire
        !          8634: 
        !          8635: induced,emf,field,height,dimension,emf,induced,component,earth,magnetic,plane,beam
        !          8636: kg,specific,db,mev,angle,line,ev,unit,hz,units,ohm
        !          8637: physics,exam
        !          8638: 
        !          8639: 
        !          8640: 
        !          8641: reference,line,physics
        !          8642: kg,specific,db,mev,angle,line,ev,unit,hz,units,ohm
        !          8643: 
        !          8644: 
        !          8645: Lenz,Law Induction,magnet,field,faradays,ac,induced,direction,lenz,law,magnetic,loop
        !          8646: Ideal,Gas Law,gas,temperature,pressure,units
        !          8647: expansion,solid,length,temperature
        !          8648: Coefficient,of volume expansion solid,volume,solid,temperature,units
        !          8649: expansion,solid linear,length,expansion,temperature,significant
        !          8650: volume,expansion liquid,expansion,sun,temperature,units
        !          8651: ideal,gas law,gas,moles,number,molecules,temperature,pressure,units
        !          8652: ideal,gas law,gas,half,temperature,pressure
        !          8653: Ideal,Gas Law,volume,air,surface,constant,temperature
        !          8654: Ideal,Gas Law,gas,number,molecules,temperature,force
        !          8655: ideal,Gas Law,area,period,mass,elastic,molecule,molecules,pressure,collision
        !          8656: expansion,of a solid,laser,length,volume,temperature,glass
        !          8657: expansion,fluids,coefficient,expansion,density,volume
        !          8658: ideal,gas law microscopic model,gas,volume,temperature,pressure,flow
        !          8659: ideal,gas law,pressure,water
        !          8660: mechanical,equivalent of thermal energy,work,equivalent,food
        !          8661: heat,capacity,heat,temperature,units
        !          8662: heat,equilibrium,temperature,water,units
        !          8663: calorimetry,equilibrium,mass,temperature,water
        !          8664: calorimetry,thermal,heat,equilibrium,temperature,water,units
        !          8665: calorimetry,heat,ice
        !          8666: Calorimtery,temperature,ice,water,units
        !          8667: Heat,Transfer,gas,heat,area,length,temperature,block,flow
        !          8668: Heat,Transfer conductivity,thermal,radiation,gas,heat,average,angle,temperature,units
        !          8669: Heat,Transfer Radiative Stefan,net,power,temperature,ratio
        !          8670: calorimetry,power heat transfer,thermal,radiation,earth,average,energy,surface,efficiency,sun,temperature,water
        !          8671: capacity,temperature,water
        !          8672: calorimetry,power,heat,specific,power,density,air,exam,temperature,units
        !          8673: Heat,Transfer,electric,heat,power,temperature,water
        !          8674: calorimetry,work kinetic energy,speed,bullet,ice,block
        !          8675: conversions,temperature,kelvin,air
        !          8676: expansion,liquid,glass
        !          8677: digits,length,spring,temperature
        !          8678: gauge,sure,volume,air,temperature,pressure
        !          8679: free,skills,copying,type
        !          8680: kg,heat,kinetic,energy,mass,friction,surface,speed,temperature,block,units,data
        !          8681: coefficient,expansion,density,volume
        !          8682: mechanical,equivalent  heat transfer,masses,frictional,energy,work,plate,speed,temperature,force,metal,units,mechanical
        !          8683: heat,ice,water,calorimetry
        !          8684: maximum,length,field,half,parallel,diagram,voltage,induced,direction,area,rotates,magnetic,perpendicular,rotation,flux,coil,loop
        !          8685: gas,number,ideal,molecules,temperature,pressure,moles,law,units
        !          8686: gas,half,ideal,temperature,pressure,law
        !          8687: angle,line,picture,index,refraction,light,beam
        !          8688: work,engine,constant,pressure
        !          8689: gas,work,ideal,temperature,moles,area,mass,friction,slides
        !          8690: gas,heat,energy,picture
        !          8691: gas,heat,energy,work,pressure,water,process
        !          8692: thermal,expansion,heat,energy,work,pressure,block
        !          8693: maximum,temperatures,heat,engine,efficiency
        !          8694: heat,cycle,work,efficiency,engine
        !          8695: maximum,heat,cycle,carnot,power,reservoir,engine
        !          8696: height,entropy,air,process
        !          8697: minimum,maximum,energy,gradient,efficiency,temperature,water,thermal,power,surface,plant
        !          8698: energy,temperature,thermal,reservoir,entropy
        !          8699: gas,heat,energy,net,processes,work,picture,diagram,process
        !          8700: heat,specific,energy,length,work,temperature
        !          8701: heat,engines,carnot,reservoir,engine,air,ideal,speed,temperature,accelerate,units
        !          8702: temperatures,heat,carnot,latent,cycle,engine,solid,efficiency,block,units
        !          8703: gas,heat,energy,work
        !          8704: gas,expansion,ideal
        !          8705: gas,moles,work,ideal,diagram,data,process
        !          8706: maximum,heat,cycle,ideal,carnot,power,reservoir,engine
        !          8707: kg,heat,average,energy,coefficient,expansion,linear,density,work,volume,temperature,pressure,block,units
        !          8708: heat,cycle,efficiency,power,engine
        !          8709: kg,entropy,water
        !          8710: kg,heat,kinetic,energy,entropy,constant,temperature,collision
        !          8711: heat,cycle,work,ideal,temperature,carnot
        !          8712: temperatures,heat,temperature,conduction,negative,surface,glass
        !          8713: 
        !          8714: physics,exam
        !          8715: physics,exam
        !          8716: 
        !          8717: area,length
        !          8718: experiment,rotation,speed,distance,units,light
        !          8719: Lucite,distance,light,plate,air,layer,water
        !          8720: angle,refracted,beam,water,ray,light
        !          8721: angle,water,ray,air,surface,flashlight
        !          8722: speed,beam,medium,wave
        !          8723: laser,experiment,angle,refraction,beam
        !          8724: angle,wavelength,light,refraction,colors,beam,glass
        !          8725: air,angle,glass
        !          8726: pipe,light,angles,reflection,refraction,rays,coating
        !          8727: angle,light,picture,surface,reflection,refraction,beam,medium
        !          8728: angle,light,air,surface,beam,plates,glass
        !          8729: submerged,angle,refraction,wire
        !          8730: circular,air,degrees,reflection,water
        !          8731: cylinder,light,parallel,air,surface,refraction,ray
        !          8732: spherical,magnification
        !          8733: radius,mirrors,mirror,curvature,image,magnification
        !          8734: distance,radius,sphere,curvature,image
        !          8735: radius,virtual,convex,mirror,curvature,image,spherical
        !          8736: radius,concave,mirror,curvature,image
        !          8737: surface,water,block,glass
        !          8738: water
        !          8739: radius,lens,length,surface,curvature,focal,refraction
        !          8740: magnifying,distance,lens,length,convex,focal,magnification,glass
        !          8741: lens,length,virtual,image,focal
        !          8742: lens,length,lenses,image,focal,magnification
        !          8743: lens,position,length,lenses,image,focal,magnification
        !          8744: lens,lenses,picture,image,focal,magnification
        !          8745: distance,lens,length,image,focal
        !          8746: lens,negative,height,lenses,image,focal
        !          8747: radius,concave,lens,thin,eye,mirror,curvature,image,focal,refraction,spherical,magnification
        !          8748: radiation,area,energy,power,surface,efficiency,electrical
        !          8749: vacuum,electromagnetic,wave,wavelength,speed,hz,frequency
        !          8750: wave,X-Ray, UV light, FM signal, microwaves 
        !          8751: electric,maximum,magnitude,direction,vector,period,negative,electromagnetic,field,magnetic,wave,light,speed,hz,plane,frequency,wire
        !          8752: reflected,light,parallel,mirrors,beam
        !          8753: light,parallel,surface,refraction,beam,ray,glass
        !          8754: light,air,refraction,beam,water
        !          8755: pipe,light,air,reflection,refraction,optical,rays
        !          8756: apparent,depth
        !          8757: mirror,image,focal,converging,magnification
        !          8758: convex,mirror,image,focal,spherical,magnification
        !          8759: length,focal,inverted,lens,image
        !          8760: lens,image,focal,magnification
        !          8761: lens,diverging,image,focal
        !          8762: concave,lens,mirror,image,focal,magnification
        !          8763: pattern,slits,parallel,interference
        !          8764: slits,distance,wavelength,light
        !          8765: distance,waves,destructive,wavelength,interference,reflection,phase
        !          8766: telescope,waves,destructive,wavelength,height,interference,reflection,phase
        !          8767: constructive,line,interference,film
        !          8768: wavelength,light,separation,beam,plates,glass
        !          8769: slit,diffraction,wavelength,light
        !          8770: slit,pattern,diffraction,wavelength,light
        !          8771: light,refraction,beam,ray,glass
        !          8772: transmission,reference,polarization,light,parallel,picture,polarized,plane,beam,intensity,plates,units
        !          8773: slits,light,interference,wavelengths,beam
        !          8774: reflected,polarization,light,surface,ray,glass
        !          8775: reflected,interference,mirror,rays
        !          8776: polarized,reflection,water
        !          8777: constructive,reflected,destructive,thin,wavelength,light,plate,interference,film,beam,glass
        !          8778: electric,area,energy,field,magnetic,wave,fields
        !          8779: constructive,line,wavelength,reflection,phase,interference,surface,film
        !          8780: pattern,maximum,slits,angle,wavelength,light,interference
        !          8781: laser,pattern,maximum,slits,angle,distance,wavelength,interference,formula
        !          8782: length,telescope,angular,focal,lenses,magnification
        !          8783: wavelength,light,degrees,wavelengths,angles,lines,grating,spectrum
        !          8784: length,wavelength,light
        !          8785: length,eye,diopters,focal,lens,focus,power,units
        !          8786: length,angular,eye,focal,lens,image,magnification
        !          8787: number,diffraction,angle,line,lines,grating
        !          8788: optics,physlet
        !          8789: 
        !          8790: spring,units
        !          8791: 
        !          8792: 
        !          8793: physics
        !          8794: 
        !          8795: 
        !          8796: physics
        !          8797: physics
        !          8798: physics
        !          8799: physics
        !          8800: physics
        !          8801: physics
        !          8802: physics
        !          8803: physics
        !          8804: physics
        !          8805: 
        !          8806: 
        !          8807: specific,lab,electromagnetic,waves,work,spring,physics,exam
        !          8808: maximum,energy,speed,mechanical,amplitude,acceleration,mass,spring,constant,oscillates
        !          8809: 
        !          8810: distance,destructive,wavelength,reflection,phase,waves,interference
        !          8811: minimum,wavelength,plate,reflection,plates,phase,light,separation,beam,glass
        !          8812: vacuum,wavelength,wavelengths,speed,light,medium,frequency
        !          8813: pattern,maximum,diffraction,wavelength,slit,light
        !          8814: photons,gas,maximum,diffraction,angle,wavelength,lines,grating,electrical,slit,discharge,hydrogen,separation,beam,spectrum
        !          8815: atom,glass,image,lens,mirror,photon,physics,reflection
        !          8816: 
        !          8817: diffraction,angle,wavelength,light,degrees,grating
        !          8818: resolving,power,diffraction,wavelengths,grating
        !          8819: magnitude,direction,reference,earth,velocities,photon,light,speed,velocity
        !          8820: reference,speed,magnitude,direction,earth,velocities,photon,light,velocity
        !          8821: vacuum,momentum,speed,photon,light,electron
        !          8822: radius,circular,charged,orbit,field,magnetic,speed,electron
        !          8823: radius,electric,kg,circular,magnitude,acceleration,joules,motion,orbit,period,kinetic,energy,negative,mass,ev,charge,angular,energies,proton,particle,potential,force,electron,velocity,frequency,units,electrical,data
        !          8824: vacuum,conductor,energy,negative,wavelength,potential,speed,metal,electron,electrons
        !          8825: heat,period,energy,mass,unit,power,electricity,constant,efficiency,plant,units,electrical
        !          8826: radiation,wavelength,surface,sun,temperature,intensity
        !          8827: mev,kinetic,energy,photon,electron
        !          8828: free,kinetic,energy,wavelength,photon,degree,degrees,electron
        !          8829: angle,wavelength,photon,frequency,spectrum,rays,gamma
        !          8830: position,electron,velocity,uncertainty
        !          8831: minimum,mass,position,relativistic,electron,velocity,electrons,uncertainty
        !          8832: lens,length,height,image,focal
        !          8833: distance,lens,length,eye,focal
        !          8834: magnitude,lens,position,length,angular,picture,image,focal,ratio,magnification
        !          8835: eyepiece,magnifying,length,telescope,power,focal
        !          8836: minimum,magnifying,lens,telescope,power,lenses,eye,diopters
        !          8837: angle,power,wavelength,light,microscope
        !          8838: maximum,angle,distance,wavelength,air,eye,refraction
        !          8839: gas,wavelength,light,refraction,significant,pressure
        !          8840: number,slits,wavelength,light,grating
        !          8841: diffraction,line,distance,wavelength,light,lines,grating,spectrum
        !          8842: number,diffraction,angle,line,lines,grating,spectrum
        !          8843: minimum,eyepiece,distance,lens,focus,length,telescope,angular,light,virtual,lenses,parallel,picture,eye,image,focal,magnification,glass,rays
        !          8844: minimum,eyepiece,length,telescope,angular,angles,focal,magnification
        !          8845: number,telescope
        !          8846: earth,units
        !          8847: distance,earth,units
        !          8848: speed,light
        !          8849: momentum,speed,electron
        !          8850: mass,light,particle,speed
        !          8851: direction,light,atomic,projectile,particle,speed,external,velocity
        !          8852: kinetic,energy,proton,speed
        !          8853: momentum,kinetic,energy,light,proton,speed,significant,units
        !          8854: light,proton,work,speed,accelerate
        !          8855: momentum,energy,proton,electron,units
        !          8856: direction,positive,light,speed,electron,radioactive,nucleus
        !          8857: length,speed,earth,light
        !          8858: number,distance,decays,particle,speed,electron
        !          8859: radiation,light,temperature,frequency
        !          8860: radiation,energy,electromagnetic,wavelength,quantum
        !          8861: photons,maximum,wavelength,light,eye,intensity
        !          8862: photons,energy,mass,wavelength,light,height
        !          8863: wavelength,light,work,surface,electrons,frequency
        !          8864: maximum,wavelength,light,work,speed,electrons
        !          8865: reflected,maximum,angle,wavelength,surface,beam
        !          8866: angle,carbon,wavelength,electrons
        !          8867: photons,free,angle,wavelength,photon,speed,electron
        !          8868: kinetic,energy,photon
        !          8869: earth,ball,wavelength
        !          8870: slit,pattern,diffraction,energy,distance,beam,electrons
        !          8871: minimum,ball,position,speed,uncertainty
        !          8872: reflected,radiation,minimum,maximum,angle,wavelength
        !          8873: radius,photons,circular,field,magnetic,wavelength,work,metal,electrons
        !          8874: maximum,kinetic,energy,wavelength,light,work
        !          8875: maximum,diffraction,momentum,wave,wavelength,particles,speed,significant
        !          8876: atom,energy,distance,protons,potential,electrostatic,force
        !          8877: experiment,kinetic,energy,distance,charge,conservation,nucleus
        !          8878: hydrogen,energy
        !          8879: motion,orbit,hydrogen,bohr,amperes,speed,electron,nucleus
        !          8880: atom,minimum,hydrogen,speed,atoms,collision
        !          8881: radius,number,momentum,earth,motion,orbit,mass,angular,orbital,height,satellite,quantum
        !          8882: radius,number,orbit,energy,num,atomic,electron
        !          8883: number,independent,quantum
        !          8884: wavelength,electron
        !          8885: minimum,line,energy,wavelength,voltage
        !          8886: wavelength,electron
        !          8887: thermal,gas,minimum,hydrogen,energy,constant,atoms,temperature,electron,collision,electrons
        !          8888: photons,laser,radiation,experiment,number,joules,average,energy,electromagnetic,power,wavelength,beam,series
        !          8889: circular,laser,si,area,energy,unit,power,eye,units
        !          8890: lens,image
        !          8891: refraction,liquid
        !          8892: 
        !          8893: reflected,wave,thin,wavelength,light,interference,air,surface,diagram,film,reflection,refraction,water,ray,phase,glass
        !          8894: number,telescope
        !          8895: atom,hydrogen,energy,wavelength,photon,ac
        !          8896: 
        !          8897: 
        !          8898: 
        !          8899: bullet
        !          8900: 
        !          8901: 
        !          8902: 
        !          8903: 
        !          8904: 
        !          8905: 
        !          8906: distance,force,mass,net,particle,speed
        !          8907: acceleration,force,mass,ratio
        !          8908: constant,direction,force,ratio,resistance,speed,water
        !          8909: acceleration,force,kg,magnitude,mass
        !          8910: acceleration,displacement,forces,kg,magnitude,velocity
        !          8911: newtons,weight
        !          8912: acceleration,ball,earth,kg,mass,surface,weight
        !          8913: force,ice
        !          8914: diagram,force,forces,law,laws,newtons,physics
        !          8915: acceleration,block,constant,equilibrium,frictionless,position,spring,stretched,surface
        !          8916: kg,mass,tension
        !          8917: acceleration,gravity,kg,mass,speed,tension
        !          8918: bullet,constant,force,mass
        !          8919: block,bullet,constant,force,mass
        !          8920: angle,kg,line,mass,string
        !          8921: physics,tension
        !          8922: angle,degrees,force,friction,incline,kg,perpendicular,rolling
        !          8923: 
        !          8924: acceleration,block,kg,minimum,tension
        !          8925: constant,speed
        !          8926: masses,mev,energy,protons,electrons,atom,nucleon,nucleons,mass,eu,atomic,neutrons,nucleus
        !          8927: magnitude,positive,angle,negative,displacement
        !          8928: distance
        !          8929: magnitude,ball,line,perpendicular,parallel,displacement,units
        !          8930: number,fission,charge,processes,conservation
        !          8931: angle,picture,speed
        !          8932: positive,ball,angle,negative,speed,velocity
        !          8933: angle,height,speed,water
        !          8934: constant,water,velocity,crosses
        !          8935: ball,angle,line,constant,speed
        !          8936: ball,angle,speed,vector,velocity
        !          8937: positive,speed,water,direction,velocities
        !          8938: motion,angle,distance,speed,air,resistance
        !          8939: angle,ball,height,picture,speed
        !          8940: direction,positive,motion,average,position,cycle,surface,water,velocity
        !          8941: distance,height,speed,position,constant,incline
        !          8942: ball,angle,distance,half,picture,speed,ratio
        !          8943: mass,constant,speed
        !          8944: constant,speed,bullet,force
        !          8945: ball,average,height,force
        !          8946: angle,force,picture,weigh,weight
        !          8947: force,mass,cart,friction
        !          8948: period,net,speed,force,mass
        !          8949: accelerates,mass,picture,tension
        !          8950: motion,picture,acceleration,kinetic,static,coefficient,friction,surface
        !          8951: atom,bohr,electron,energy,ev,negative,positive
        !          8952: atom,hydrogen,energy,photon
        !          8953: atom,hydrogen,energy,wavelength,photon,lines,electron,series,frequency
        !          8954: photons,hydrogen,line,energy,ev,light,diagram
        !          8955: photons,hydrogen,line,energy,ev,wavelength,light,diagram,spectrum
        !          8956: maximum,number,magnetic,orbital,quantum,states,electron,electrons
        !          8957: energy,electron,electrons,frequency
        !          8958: electrons
        !          8959: energies,wavelength,atom,kinetic,mass,nucleus,momentum,energy,speed,atoms,electrons,ev,relativistic,electron
        !          8960: atom,hydrogen,energy,mass,charge,proton,particle,particles,electron
        !          8961: lens,length,angular,image,focal,magnification
        !          8962: atom,kg,number,mass,unit,atomic,atoms
        !          8963: radius,kg,mass,atomic,density,nucl,spherical,water,units,nucleus
        !          8964: body,constant,frame,line,reference,speed
        !          8965: area,graph,isotope,number,radioactive
        !          8966: life,law,half,nuclei,radioactive,decay
        !          8967: kg,joules,earth,collide,life,energy,mass,protons,carbon,ev,isolated,half,neutrons,equivalent,ratio,nuclei,radioactive,data,rays
        !          8968: radius,circular,ohms,magnitude,center,trajectory,mev,number,momentum,joules,positive,magnet,kinetic,energy,lab,negative,mass,protons,product,law,field,reactions,magnetic,conserved,nuclear,charge,energies,neutrons,graaff,conservation,particles,constant,potential,ions,resistance,beam,electron,van,velocity,electrons,voltage,electrical,terminal,nucleus,accelerating
        !          8969: mev,joules,energy,fission,power,nuclei
        !          8970: masses,mev,energy,mass,atomic
        !          8971: average,energy,mass,protons,fission,neutrons,neutron,combustion,ratio,nuclei,data
        !          8972: nuclear,force
        !          8973: masses,kg,einstein,period,energy,mass,protons,reactions,power,proton,work,sun,electron,series,units,data,nucleus
        !          8974: mev,number,average,watt,energy,mass,fission,light
        !          8975: circular,height,units,volume
        !          8976: radiation
        !          8977: strings,reference
        !          8978: 
        !          8979: radius,area
        !          8980: length,significant
        !          8981: volume,units
        !          8982: height,area,volume,units
        !          8983: radius,sphere,mass,density,volume
        !          8984: distance,units
        !          8985: distance,units
        !          8986: length,perpendicular
        !          8987: area,radius,ratio,sphere,surface,volume
        !          8988: average,position,length,half,velocity
        !          8989: average,line,picture,velocity
        !          8990: length,speed
        !          8991: positive,negative,constant,velocity
        !          8992: direction,acceleration,ball,average,speed
        !          8993: minimum,maximum,distance,plane,accelerate,velocity
        !          8994: minimum,acceleration,constant,speed
        !          8995: minimum,direction,acceleration,line,distance,negative,moment
        !          8996: period,acceleration
        !          8997: free,acceleration,position
        !          8998: maximum,acceleration,height,air,accelerates,constant,speed
        !          8999: balls,ball,height,speed
        !          9000: line,distance,speed,accelerate,acceleration,constant
        !          9001: direction,constant,speed
        !          9002: ball,height,speed
        !          9003: angle,force,kinetic,coefficient,friction
        !          9004: minimum,distance,coefficient,friction,surface
        !          9005: minimum,direction,equilibrium,angle,static,coefficient,friction,picture,force,incline,block
        !          9006: ball,distance,speed,force,average,mass,air,process
        !          9007: kinetic,angle,coefficient,friction,picture,accelerates,constant,force,block
        !          9008: motion,picture,force,tension,acceleration,kinetic,coefficient,friction
        !          9009: angle,picture,acceleration,mass,accelerates
        !          9010: distance,force,weight
        !          9011: string,accelerates,perpendicular,tension,acceleration,angle,picture,van
        !          9012: constant,resistance,force,angle,speed,water,air
        !          9013: work,constant,speed
        !          9014: magnitude,mass,net,work,gravity,constant,force,frictionless,block
        !          9015: kinetic,energy,work,particle,speed
        !          9016: kinetic,energy,distance,coefficient,friction,work,speed,ice
        !          9017: ball,energy,gravitational,height,string,potential
        !          9018: energy,air,speed,resistance,crosses
        !          9019: 
        !          9020: 
        !          9021: 
        !          9022: 
        !          9023: frictionless,slides,speed,wire
        !          9024: 
        !          9025: 
        !          9026: 
        !          9027: compressed,constant,distance,equilibrium,forces,height,maximum,mu,picture,position,projectile,speed,spring
        !          9028: magnitude,motion,mass,engine,air,speed,force,resistance
        !          9029: strings,masses,energy,friction,surface,speed,force,frictionless
        !          9030: average,power,work,speed
        !          9031: acceleration,average,period,power,constant,speed
        !          9032: average,speed,force
        !          9033: ac,fundamental,si
        !          9034: average,power,engine,air,accelerates,constant,resistance,instantaneous
        !          9035: mass,length,spring,constant,frictionless,incline
        !          9036: maximum,kinetic,coefficient,length,friction,spring,constant,frictionless,block
        !          9037: compressed,ball,mass,friction,spring,inclined,surface,constant,speed,force
        !          9038: kinetic,angle,mass,coefficient,friction,spring,pulley,constant,frictionless,incline,block
        !          9039: magnitude,average,light,linear,accelerates,impulse,speed,force
        !          9040: direction,constant,force,velocity
        !          9041: ball,average,angle,speed,force,plane
        !          9042: direction,ball,speed,collision
        !          9043: free,surface,constant,ice,frictionless,velocity
        !          9044: sphere,mass,speed,inelastic,collision
        !          9045: block,bullet,height,speed
        !          9046: direction,positive,elastic,collision,velocity
        !          9047: magnitude,kinetic,angle,energy,mass,surface,frictionless,collision,velocity,units
        !          9048: magnitude,positive,kinetic,angle,energy,surface,speed,frictionless,collision,velocity,units
        !          9049: constant,speed,velocity
        !          9050: block,collision,elastic,frictionless,height,magnitude,mass,masses,maximum,velocity
        !          9051: maximum,magnitude,collide,mass,cart,light,spring,constant,force,frictionless,collision,velocity
        !          9052: height,water
        !          9053: acceleration,kinetic,negative,coefficient,friction,constant
        !          9054: protons,nuclear,coulomb,neutrons,proton,gravity,neutron,force,electron,nucleus
        !          9055: angle,length,radius
        !          9056: acceleration,angular,speed
        !          9057: acceleration,angle,angular,constant,period,rotates
        !          9058: acceleration,angular,constant,mass,speed,string
        !          9059: acceleration,constant,speed
        !          9060: circular,coefficient,friction,radius
        !          9061: acceleration,air,center,centripetal,equilibrium,force,frictionless,mass,radius,speed,string,tension
        !          9062: length,minimum,radius,speed,water
        !          9063: distance,force,gravitational,mass,net,sun
        !          9064: circular,earth,orbit,period,satellite,speed,surface
        !          9065: acceleration,angle,angular,direction,line,rotating,speed
        !          9066: acceleration,angular,center,centripetal,constant,distance,linear,radius,rotates,speed
        !          9067: angle,pendulum,speed,tension
        !          9068: circular,height,mass,motion,tension
        !          9069: circular,line,ratio,units
        !          9070: block,circular,coefficient,constant,distance,force,friction,frictionless,kinetic,length,mass,minimum,radius,spring
        !          9071: angle,length,torque,force
        !          9072: center,gravity
        !          9073: mass,balance
        !          9074: angle,mass,light,force,beam,tension
        !          9075: magnitude,angle,position,gravity,force,tension
        !          9076: positive,perpendicular,angles,force,tension,weight
        !          9077: radius,acceleration,line,inertia,angular,moment,friction,torque,force
        !          9078: radius,acceleration,mass,angular,friction,pulley,force,tension
        !          9079: inertia,net,angular,moment,work,speed,accelerating
        !          9080: radius,electric,kinetic,energy,mass,rotating,stored,speed,rotational
        !          9081: radius,sphere,angular,inclined,speed
        !          9082: radius,center,mass,rotates,angular,solid,rotation,speed
        !          9083: center,kinetic,energy,distance,mass,work,string,rotation,speed,frictionless
        !          9084: radius,acceleration,angle,inertia,mass,angular,moment,rotating,speed,frictionless,tension,incline
        !          9085: magnitude,angle,position,length,picture,force,tension,frame
        !          9086: radius,acceleration,inertia,mass,rotates,moment,light,pulley,surface,frictionless,tension
        !          9087: radius,center,momentum,mass,angular,air,speed,slides,collision,velocity
        !          9088: radius,acceleration,inertia,mass,moment,pulley,tension
        !          9089: 
        !          9090: minimum,metal,wire
        !          9091: modulus,stress,distance,plates
        !          9092: area,pressure,weight
        !          9093: minimum,specific,average,height,gravity,solution,pressure,glucose
        !          9094: friction,force,weight
        !          9095: equilibrium,static,light,density,spring,picture,constant,water,block
        !          9096: density,string,air,balance,water
        !          9097: mass,metal,water
        !          9098: area,net,air,speed,force,flow
        !          9099: height,water
        !          9100: fluid,angle,thin,balance,surface,square,metal,tension
        !          9101: fluid,angle,height,density,surface,tension
        !          9102: pipe,coefficient,length,pressure,flow
        !          9103: area,coefficient,length,diffusion,water
        !          9104: radius,protein,density,solution,particles,spherical,water
        !          9105: volume,temperature,pressure
        !          9106: floats,specific,gravity,surface,water
        !          9107: maximum,area,height,water
        !          9108: radius,submerged,frictional,balls,motion,ball,air,water
        !          9109: floats,average,density,volume,water
        !          9110: applet,atom,atoms,color,graph,graphs,image,lab,polar,product,wave
        !          9111: 
        !          9112: 
        !          9113: physlet,concave,focal,length,mirror,position
        !          9114: 
        !          9115: distance,si,units,velocity
        !          9116: distance,si,units,velocity
        !          9117: air,plane,sound,speed,units
        !          9118: 
        !          9119: 
        !          9120: constant,decay,dimension,law,nuclei,number,radioactive
        !          9121: acceleration,mass,power,product,speed
        !          9122: air,area,constant,dimension,force,product,square,surface,velocity
        !          9123: 
        !          9124: 
        !          9125: 
        !          9126: number,significant
        !          9127: number,significant
        !          9128: number,significant
        !          9129: cell,membrane,membranes
        !          9130: atom,atoms,hydrogen,kg,mass,number
        !          9131: 
        !          9132: atom,atoms,kg,mass
        !          9133: water,weight
        !          9134: average,density,distance,mass,radius,ratio,sphere
        !          9135: length,temperature
        !          9136: earth,force,radius,square,surface,weight
        !          9137: capacity,series,stored
        !          9138: average,speed,velocity
        !          9139: average,displacement,line,velocity
        !          9140: 
        !          9141: beat,distance
        !          9142: average,particle,significant,velocity
        !          9143: constant,distance,earth,law,speed,units
        !          9144: ac,magnitude,velocity
        !          9145: average,displacement,particle,position,velocity
        !          9146: constant,speed
        !          9147: gas,units
        !          9148: 
        !          9149: acceleration,body,velocity
        !          9150: acceleration,body,line
        !          9151: accelerate,acceleration,units
        !          9152: acceleration,average,velocity
        !          9153: acceleration,ball,magnitude,velocity
        !          9154: acceleration,constant,velocity
        !          9155: air,ball,height,velocity
        !          9156: acceleration,constant,magnitude,plane,speed
        !          9157: acceleration,speed
        !          9158: distance,maximum,speed
        !          9159: height,speed,water
        !          9160: collision,direction,speed
        !          9161: acceleration,constant,speed
        !          9162: ball,balls,collide,collision,height,speed
        !          9163: particle,position,velocity
        !          9164: acceleration,constant,maximum,speed
        !          9165: magnitude,vectors
        !          9166: angle,angles,components,degrees,direction,magnitude,vectors
        !          9167: angle,degrees,direction,magnitude,unit,vectors
        !          9168: acceleration,direction
        !          9169: particles,position
        !          9170: acceleration,direction,particle,positive,speed
        !          9171: acceleration,component,constant,direction,magnitude,particle,plane,position,unit,vector,velocity
        !          9172: angle,direction,line,speed,water
        !          9173: acceleration,direction,positive,projectile
        !          9174: bullet,height
        !          9175: angle,magnitude,projectile,speed,velocity
        !          9176: air,ball,gravity,plate,resistance
        !          9177: acceleration,projectile,velocity
        !          9178: angle,height,projectile,speed
        !          9179: air,ball,direction,magnitude,velocity
        !          9180: constant,distance,plane,speed,velocity
        !          9181: 
        !          9182: air,height,projectile,velocity
        !          9183: angle,ball,height,moment,negative,positive,velocity
        !          9184: ball,balls,height,maximum,speed
        !          9185: 
        !          9186: ball,plate,speed
        !          9187: angle,component,height,speed,velocity
        !          9188: air,angle,ball,distance,field,speed,velocity
        !          9189: 
        !          9190: angle,constant,distance,slides,speed
        !          9191: distance,velocity
        !          9192: angle,height,motion,perpendicular,plane,position,speed,unit,vectors,velocity
        !          9193: constant,frame,reference,velocity
        !          9194: 
        !          9195: angle,distance,kg,line,mass,surface,tension
        !          9196: acceleration,block,constant,distance,force,frictionless,kg,length,mass,position,tension
        !          9197: displacement,kg,mass,masses
        !          9198: force,net
        !          9199: force,frictionless,surface
        !          9200: acceleration,earth,gravity,weight
        !          9201: acceleration,body,frictionless,mass
        !          9202: accelerate,mass,masses,string,tension
        !          9203: acceleration,kg,magnitude,pulley
        !          9204: 
        !          9205: angle,block,coefficient,friction,inclined,mass,plane,static
        !          9206: block,constant,force,friction,kinetic,static,string,surface,tension
        !          9207: coefficient,constant,force,friction,kinetic,parallel,velocity
        !          9208: acceleration,coefficient,distance,force,friction,magnitude,maximum,net,static
        !          9209: coefficient,friction,ice,kinetic,sound,speed
        !          9210: acceleration,angle,block,coefficient,degrees,friction,frictionless,kinetic,mass,plane,pulley,speed,string,velocity
        !          9211: coefficient,distance,friction,static
        !          9212: acceleration,block,coefficient,friction,incline,kg,kinetic,mass,string,tension
        !          9213: angle,block,coefficient,friction,inclined,kg,mass,static,string,surface,tension
        !          9214: acceleration,block,coefficient,diagram,force,friction,frictionless,kinetic,motion,slides,surface
        !          9215: acceleration,angle,coefficient,friction,maximum,static,surface
        !          9216: acceleration,angle,coefficient,friction,ice,maximum,minimum,static
        !          9217: acceleration,ball,centripetal,gravity,magnitude,radius,string
        !          9218: acceleration,circular,force,kg,magnitude,mass,plane,radius,speed,velocity
        !          9219: center,circular,frictionless,kg,mass,radius,speed,string
        !          9220: block,frictionless,kg,length,mass,motion,period,tension
        !          9221: angle,coefficient,force,friction,frictional,maximum,radius,speed,static,surface
        !          9222: angle,coefficient,curvature,degrees,friction,ice,minimum,radius,static
        !          9223: air,constant,force,resistance,speed
        !          9224: centripetal,earth,force,mass,orbit
        !          9225: air,force,kg,mass,plane,radius,speed,string,tension,weight
        !          9226: acceleration,constant,force,radius,rotates,rotation,speed
        !          9227: coefficient,friction,minimum,number,radius,static
        !          9228: coefficient,friction,frictionless,kg,kinetic,mass,position,string,thin
        !          9229: energy,kinetic,speed
        !          9230: bullet,energy,joules,kinetic,speed
        !          9231: energy,joules,kg,kinetic,speed
        !          9232: distance,energy,force,gravity,kg,kinetic,work
        !          9233: energy,kg,kinetic,mass,speed
        !          9234: distance,force,stretched,work
        !          9235: constant,kg,mass,speed,water,work
        !          9236: angle,block,degrees,frictionless,incline,kg,slides,speed,work
        !          9237: angle,product,units,vectors
        !          9238: component,constant,direction,displacement,force,line,work
        !          9239: constant,force,speed,work
        !          9240: force,kg,magnitude,mass,particle,power
        !          9241: accelerate,accelerates,power,speed
        !          9242: accelerate,acceleration,constant,engine,kg,mass,power,speed
        !          9243: constant,power,speed
        !          9244: energy,gravitational,potential
        !          9245: average,distance,electric,energy,half,potential,power,water
        !          9246: constant,energy,force,potential,spring,stretched
        !          9247: distance,energy,kinetic,mass,masses,pulley,speed
        !          9248: energy,force,potential
        !          9249: constant,height,kg,power,velocity,work
        !          9250: energy,kg,kinetic,potential
        !          9251: force,kg,newtons,particle,power,work
        !          9252: air,angle,bullet,energy,height,kinetic,maximum,projectile,resistance
        !          9253: angle,constant,distance,frictionless,kg,mass,plane,power,speed,string,tension,work
        !          9254: distance,equilibrium,length,mass,pendulum,position,speed
        !          9255: angle,block,distance,frictionless,inclined,slides,speed,surface
        !          9256: block,constant,frictionless,slides,spring,surface
        !          9257: 
        !          9258: angle,block,coefficient,constant,degrees,energy,force,friction,incline,inclined,moment,plane,potential,pulley,spring,static
        !          9259: block,compressed,constant,height,speed,spring
        !          9260: distance,length,mass,minimum,tension
        !          9261: centripetal,force,friction,height,loop,mass,speed
        !          9262: angle,pendulum,speed
        !          9263: conservation,energy,kinetic,length,mass,maximum,minimum,pendulum,plane,position,potential,speed,string,tension
        !          9264: constant,energy,kg,mass
        !          9265: chemical,energy,gravitational,mechanical,potential
        !          9266: coefficient,dissipated,distance,energy,friction,kinetic,speed
        !          9267: air,angle,ball,coefficient,component,degrees,distance,friction,ice,kinetic,resistance,velocity
        !          9268: center,coefficient,dissipated,energy,friction,joules,kinetic,mass,number,particle,radius,speed,string
        !          9269: coefficient,degrees,friction,incline,inclined,kinetic,plane,velocity
        !          9270: electric,energy,joules,light,mass,plant
        !          9271: energy,fission,nuclear,plant,power
        !          9272: angle,block,distance,frictionless,inclined,mass,parallel,plane,speed,string,tension,work
        !          9273: coefficient,energy,friction,kinetic,mass,speed
        !          9274: air,compressed,constant,dissipated,energy,friction,height,maximum,spring
        !          9275: compressed,constant,height,maximum,speed,spring
        !          9276: acceleration,average,constant,engine,frictional,mass,power,speed
        !          9277: angle,block,constant,force,frictionless,inclined,maximum,plane,spring
        !          9278: average,dissipated,distance,energy,force,friction,frictional,kinetic,mass,potential,power,speed,weight
        !          9279: center,mass,position
        !          9280: center,mass,plane
        !          9281: balls,center,kg,mass,masses
        !          9282: center,length,mass
        !          9283: center,density,length,linear,mass,unit
        !          9284: center,kg,magnitude,mass,masses,velocities,velocity
        !          9285: center,direction,mass,positive,speed,velocity
        !          9286: kg,mass,speed,velocity
        !          9287: compressed,direction,frictionless,kg,mass,masses,positive,spring,surface,velocity
        !          9288: angle,conservation,distance,height,kg,mass,momentum,motion,net,projectile,trajectory,velocity
        !          9289: block,center,energy,frame,kinetic,mass,motion,reference,speed,velocity
        !          9290: average,ball,force,impulse,magnitude,velocity
        !          9291: average,center,collision,constant,force,length
        !          9292: frictionless,kg,slides,speed
        !          9293: carbon,center,collision,direction,elastic,mass,nucleus,positive,proton,velocity
        !          9294: block,collision,conservation,conserved,elastic,energy,kg,kinetic,mass,momentum,velocity
        !          9295: block,bullet,collision,conservation,dissipated,energies,energy,height,inelastic,mass,maximum,mechanical,momentum,position,thin,velocities,velocity
        !          9296: charge,distance,electrical,mass,particle,particles,positive,proton,speed
        !          9297: center,component,direction,frictionless,kg,mass,plane,positive,slides,velocity
        !          9298: decay,decays,energy,isotope,kg,mass,nuclei,nucleus,particles,velocities
        !          9299: angle,ball,balls,collision,direction,elastic,masses,motion,number,positive,speed
        !          9300: collision,ice,kg,line,mass,motion,speed
        !          9301: gas,speed
        !          9302: external,forces,free,mass,speed,velocity
        !          9303: balance,distance,glass,height,mass
        !          9304: acceleration,angular,constant,units,velocity
        !          9305: angular,center,constant,particle,radius,speed,velocity
        !          9306: acceleration,angle,angular,constant,rotation,speed,velocity
        !          9307: acceleration,angular,constant,rotates,sounds,speed,volume
        !          9308: acceleration,angular,centripetal,linear,radius,rotates,speed,velocity
        !          9309: accelerates,acceleration,angular,velocity
        !          9310: angular,area,length,radius,speed
        !          9311: acceleration,angular,constant,frictional,kg,magnitude,mass,power,radius,torque,units
        !          9312: angular,constant,external,frictional,frictionless,inertia,moment,torque,velocity
        !          9313: acceleration,angle,component,degrees,kg,length,mass,pendulum,plane,string,torque,units
        !          9314: ball,inertia,mass,moment,spherical,thin
        !          9315: inertia,kg,length,mass,masses,moment,particle,particles,square
        !          9316: inertia,mass,moment,radius,solid,sphere
        !          9317: inertia,mass,moment,rotation,thin
        !          9318: distance,inertia,kg,length,mass,masses,minimum,moment,perpendicular
        !          9319: angular,ball,energy,kinetic,mass,rotating,rotational,solid,speed
        !          9320: engine,power,torque
        !          9321: center,distance,earth,energy,kg,kinetic,mass,ratio,rotation,sun
        !          9322: angular,block,constant,power,pulley,radius,speed,torque,velocity
        !          9323: angular,center,free,line,maximum,velocity
        !          9324: conservation,energy,kg,mass,radius,velocity
        !          9325: acceleration,frictionless,magnitude,mass,masses,pulley,string,tension
        !          9326: acceleration,constant,radius,solid,string,tension
        !          9327: mass,radius,rolling,work
        !          9328: ball,center,conservation,energy,height,loop,mass,radius,rolling,solid,sphere
        !          9329: angular,center,force,height,kg,mass,parallel,plane,position,radius,velocity
        !          9330: angular,center,constant,inertia,moment,momentum,motion,particle,perpendicular,plane,radius,speed
        !          9331: angular,constant,line,magnitude,momentum,particle,speed
        !          9332: angular,center,line,magnitude,mass,momentum,motion,orbital
        !          9333: angular,center,magnitude,momentum,particle,radius,speed,torque
        !          9334: angular,constant,force,friction,kg,magnitude,mass,momentum,radius,solid,torque,velocity
        !          9335: constant,distance,gas,inertia,rotating,rotation,rotational,velocity
        !          9336: focus,orbit,speed,sun
        !          9337: angular,center,density,forces,gravitational,radius,ratio,speed,spherical
        !          9338: angular,body,center,energy,friction,inertia,kg,kinetic,moment,rotates,speed,weight
        !          9339: angular,inertia,mass,moment,radius,rotating,speed
        !          9340: angular,force,frictional,frictionless,magnitude,mass,ratio,speed,velocity
        !          9341: angular,block,energy,frictionless,kinetic,mass,momentum,radius,speed,string,tension,work
        !          9342: mass,neutron,period,radius,rotates,rotation,sun
        !          9343: angular,area,center,friction,inertia,mass,moment,radius,speed
        !          9344: angular,ball,collision,height,inelastic,momentum
        !          9345: angular,center,degrees,mass,momentum,motion,position,radius,velocity
        !          9346: angular,energy,inertia,kg,kinetic,moment,momentum,rotating
        !          9347: energy,kinetic
        !          9348: angular,force,line,mass,momentum,particle,torque,velocity
        !          9349: angular,mass,momentum,particle,position,torque,vector
        !          9350: angular,center,conservation,ice,kg,mass,masses,momentum,period,rotation,separation
        !          9351: angular,center,constant,dissipated,energy,free,friction,length,magnitude,mass,motion,perpendicular,radius,rotational,speed,spring,thin,velocity
        !          9352: earth,ice,inertia,length,mass,melt,moment,polar,radius,rotation,spherical,surface,water
        !          9353: distance,earth,period,sun
        !          9354: distance,period,sun
        !          9355: orbit,period,radius,units
        !          9356: circular,orbit,period,radius,sun,units
        !          9357: distance,orbit,period,sun
        !          9358: acceleration,center,distance,earth,gravity,surface
        !          9359: mass,orbital,period,radius
        !          9360: kg,mass,orbital,period,radius
        !          9361: acceleration,earth,height,surface
        !          9362: angular,constant,momentum,orbital,radius,speed,sun
        !          9363: angular,constant,maximum,momentum,radius,speed,sun
        !          9364: magnitude,physics,plane,weight
        !          9365: center,field,gravitational,gravity,mass,maximum,position
        !          9366: direction,earth,force,gravitational,sun,weight
        !          9367: acceleration,average,density,earth,gravity,kg,mass,radius,ratio,surface,units
        !          9368: balance,force,forces,masses,separation,torque
        !          9369: body,earth,energy,height,potential,radius,separation,speed,surface
        !          9370: earth,height,maximum,speed,surface
        !          9371: mass,speed
        !          9372: earth,mass,radius,speed,surface
        !          9373: acceleration,earth,gravity,radius,speed
        !          9374: earth,speed
        !          9375: angular,circular,earth,energy,height,kg,kinetic,mass,momentum,orbit,period
        !          9376: field,gravitational,magnitude,mass,masses
        !          9377: earth,mass,sphere,surface,weight
        !          9378: balance,center
        !          9379: center,force,gravity,mass
        !          9380: block,force,mass,newtons
        !          9381: force,maximum
        !          9382: center,distance,gravity,radius,sphere,spheres,units,weight
        !          9383: center,gravity,weight
        !          9384: center,circular,direction,distance,gravity,plate,radius
        !          9385: electric,force,kg,mass
        !          9386: force,forces,mechanical,ratio
        !          9387: beam,mass,position,surface
        !          9388: center,gravity,mass,physics
        !          9389: angle,block,force,magnitude,mass,perpendicular
        !          9390: degrees,force,frictionless,inclined,plane,weight
        !          9391: distance,mass,maximum
        !          9392: beam,force,free,kg,number,positive,tension,weight
        !          9393: force,forces,magnitude,mass,position,torque
        !          9394: coefficient,friction,kg,mass,static
        !          9395: angle,coefficient,degrees,friction,height,length
        !          9396: angle,coefficient,friction,frictionless,kg,length,mass,static
        !          9397: angle,center,coefficient,degrees,force,friction,frictionless,height,length,mass,minimum,static
        !          9398: angle,coefficient,degrees,friction,frictionless,static
        !          9399: ball,length,radius,wire
        !          9400: length,maximum,stress,wire
        !          9401: length,mass,wire
        !          9402: length,mass,wire
        !          9403: constant,energy,force,length,modulus,spring,stored,wire,youngs
        !          9404: length,string,tension,work
        !          9405: length,masses,ratio,wire
        !          9406: angle,degrees,length,mass,plane,rotates,rotational,speed,tension,wire
        !          9407: 
        !          9408: air,mass
        !          9409: density,solid
        !          9410: pressure,units
        !          9411: 
        !          9412: force,mass,radius
        !          9413: area,pressure,weight
        !          9414: gravity,minimum,pressure,specific
        !          9415: float,force,forces,pressure,surface,volume,water
        !          9416: density,force,water
        !          9417: force,gravity,specific,spring,submerged,water
        !          9418: gravity,specific,spring,submerged,water
        !          9419: air,block,density,submerged,water
        !          9420: density,floats,gravity,liquid,specific,surface,volume,water
        !          9421: air,density,minimum,volume,weight
        !          9422: float,gravity,mass,specific,square,water
        !          9423: average,buoyancy,density,floats,liquid,mass,submerged
        !          9424: block,gravity,mass,specific,spring,submerged,water
        !          9425: height,pressure,speed,water
        !          9426: flow,pipe,pressure,ratio,speed,water
        !          9427: pipe,pressure,water
        !          9428: area,flow,radius,speed,units,volume
        !          9429: air,force,pressure,speed
        !          9430: distance,height,pipe,speed,surface,water
        !          9431: capacity,density,pipe,pressure,radius
        !          9432: flow,pipe,water
        !          9433: air,pipe,pressure,water
        !          9434: flow,length,pressure,water
        !          9435: ball,submerged,tension,water
        !          9436: density,modulus,pressure,surface
        !          9437: block,floats,liquid,number,submerged,surface,volume,water
        !          9438: air,balance,beam,buoyant,equilibrium,force,mass
        !          9439: floats,spherical,surface,volume,water
        !          9440: density,field,flow,fluid,number,pressure,temperature,terminal
        !          9441: air,flow,pipe,pressure,water
        !          9442: flow,pressure,reservoir,vacuum,water
        !          9443: density,liquid,mass
        !          9444: gravity,liquid,specific,water
        !          9445: amplitude,frequency,motion,particle,particles,period,position
        !          9446: amplitude,frequencies,frequency
        !          9447: acceleration,maximum,particle,position,speed
        !          9448: acceleration,amplitude,harmonic,kg,maximum,motion,period,velocity
        !          9449: angular,component,constant,frequency,particle,particles,phase,position,positive,radius,speed
        !          9450: amplitude,energy,equilibrium,harmonic,motion,position,potential,spring
        !          9451: acceleration,amplitude,energy,kg,maximum,oscillates,spring
        !          9452: frequency,kg,mass
        !          9453: amplitude,block,constant,equilibrium,force,kg,maximum,oscillates,speed,spring
        !          9454: mass,motion,period,spring
        !          9455: elastic,energy,height,kg,kinetic,law,length,mass,speed
        !          9456: amplitude,block,coefficient,friction,maximum,period,spring,static
        !          9457: amplitude,displacement,energy,equilibrium,gravitational,kg,kinetic,length,maximum,oscillates,potential,spring
        !          9458: pendulum,period
        !          9459: oscillation,pendulum,period,weight,wire
        !          9460: displaced,equilibrium,harmonic,kg,mass,motion,period,perpendicular,radius,thin
        !          9461: center,distance,mass,pendulum,period,radius
        !          9462: amplitude,angular,degrees,pendulum
        !          9463: amplitude,constant,energy,force,oscillates,period,spring
        !          9464: amplitude,constant,energy,hz,oscillates,oscillating,oscillation
        !          9465: cycle,earth,energy,forces,period,resonance,solution
        !          9466: amplitude,collision,constant,frequency,hz,speed,spring
        !          9467: acceleration,angle,degrees,length,mass,oscillations,pendulum,period,plane,string
        !          9468: density,direction,floats,kg,mass,oscillation,parallel,period,surface,water
        !          9469: constant,displacement,equilibrium,kg,length,mass,oscillating,pendulum,period,position,spring,vibrations
        !          9470: ball,compressed,constant,distance,equilibrium,force,frictionless,kg,mass,position,slides,speed,spring,surface
        !          9471: density,fluid,modulus,sound,speed,units
        !          9472: gas,hydrogen,sound,speed,waves
        !          9473: mass,speed,stretched,tension,transverse,wave,waves,wire
        !          9474: distance,sound,speed,water
        !          9475: frequency,harmonic,hz,motion,string,wavelength,waves
        !          9476: amplitude,frequency,harmonic,hz,kg,length,mass,motion,power,string,tension,unit,wave
        !          9477: amplitude,frequency,harmonic,kg,mass,power,reflection,tension,wave
        !          9478: amplitude,average,energy,frequency,hz,kg,mass,power,string,tension,waves
        !          9479: air,frequency,hz,sound,velocity,wavelength
        !          9480: amplitude,displacement,frequency,hz,pressure,sound,wave
        !          9481: distance,energy,frequency,hz,intensity,power
        !          9482: db,intensity,sound,wave
        !          9483: db,intensities,intensity,ratio,sounds
        !          9484: db,distance,intensity,sound,spherical
        !          9485: energy,frequency,hz,intensity
        !          9486: db,sound
        !          9487: frequency,hz,speed
        !          9488: frequency,hz,reflected,speed,waves
        !          9489: frequency,magnitude,reflected,sound,speed
        !          9490: plane,speed
        !          9491: frequency,hz,reflected,sound
        !          9492: distance,frequency,hz,physics,sound
        !          9493: constant,frequency,hz,tension,wave,wavelength,wire
        !          9494: distance,kg,length,mass,pulley,transverse,wave,weight
        !          9495: density,frequency,hz,linear,mass,speed,tension,wave,wavelength,waves,wire
        !          9496: 
        !          9497: air,amplitude,density,frequency,harmonic,intensity,oscillates,plane,sound,wave
        !          9498: amplitude,frequency,line,phase,ratio,sound,wave,wavelength,waves
        !          9499: distance,frequency,number
        !          9500: angular,frequency,hz,phase,string,transverse,velocity,wave,wavelength
        !          9501: direction,frequency,intensity,negative,phase,positive,sound
        !          9502: angles,frequency,hz,interfere,line,maxima,perpendicular,phase,separation,sound
        !          9503: air,angle,constructive,destructive,frequency,interference,phase,sound,wavelength,waves
        !          9504: beat,frequencies,frequency,hz
        !          9505: beat,beats,frequency,hz,string,tension
        !          9506: beat,beats,frequencies,frequency,hz
        !          9507: frequency,harmonic,hz,speed,string,transverse,waves
        !          9508: displacement,frequency,harmonic,maximum,speed,string,transverse,wave,wavelength,waves
        !          9509: frequency,fundamental,organ,pipe
        !          9510: density,fundamental,hz,length,linear,mass,speed,string,tension,transverse,waves
        !          9511: frequency,string,velocity,wave,wavelength
        !          9512: frequencies,frequency,fundamental,harmonic,hz,length,resonance,speed,string,transverse,waves
        !          9513: frequency,fundamental,hz,organ,pipe,temperature
        !          9514: frequency,fundamental,hz,length,mass,string,tension,wave,wavelength
        !          9515: harmonic,length,number,string,wavelengths
        !          9516: frequency,fundamental,hz,ideal,kg,length,mass,separation,spring,tension
        !          9517: electric,frequency,maximum
        !          9518: frequency,pipe,resonance
        !          9519: density,frequency,harmonic,linear,mass,string,tension,thin
        !          9520: frequencies,frequency,hz,oscillator
        !          9521: frequencies,frequency,fundamental,hz,length,organ,pipe,resonance
        !          9522: air,frequency,fundamental,length,mass,oscillates,resonance,sound,speed,stretched,temperature,tension,water,wire
        !          9523: frequency,hz,intensity,phase,sound,waves
        !          9524: electromagnetic,energy,frequency,joules,photon,wave
        !          9525: beam,density,laser,light,photons,wavelength
        !          9526: electrons,energy,kinetic,light,maximum,photoelectric,photon,wavelength,work
        !          9527: electrons,energy,ev,kinetic,light,maximum,surface,wavelength
        !          9528: angle,energy,photon,photons,wavelength
        !          9529: electron,energy,kinetic,momentum,wavelength
        !          9530: energy,ev,kinetic,mev,neutron,wavelength
        !          9531: mass,wavelength
        !          9532: electromagnetic,energy,length,proton,radiation,wavelength
        !          9533: length,particle,probability,wave
        !          9534: length,particle,probability,wave
        !          9535: length,particle,probability,wave
        !          9536: area,beam,energy,ev,intensity,light,perpendicular,photon,photons,wavelength
        !          9537: length,mass,number,particle,quantum,speed
        !          9538: laser,number,photons,power,wavelength
        !          9539: atom,electron,energy,microscope,minimum,wavelength
        !          9540: mass,wavelength
        !          9541: electrons,light,minimum,wavelength,work
        !          9542: absorption,eye,light,photons,wavelength
        !          9543: eye,intensity,light,photon,wavelength
        !          9544: area,distance,intensity,light,line,number,perpendicular,photons,surface,wavelength
        !          9545: energy,particle,radiation
        !          9546: energy,light,number,particle,quantum,radiation
        !          9547: electrons,energy,kinetic,light,maximum,surface,wavelength,work
        !          9548: black,force,light,photons,surface,wavelength
        !          9549: area,atom,energy,ev,intensity,photoelectric,radiation,units,work
        !          9550: degrees,temperature
        !          9551: chemical,ice,length,solution,temperature,water
        !          9552: gas,ice,kelvin,pressure,temperature
        !          9553: gas,pressure,temperature
        !          9554: constant,gas,pressure,temperature,volume
        !          9555: gas,molecules,moles,pressure,temperature
        !          9556: diffusion,gas,molecules,pressure
        !          9557: pressure,temperature
        !          9558: gas,liquid,pressure,temperature,volume
        !          9559: air,gas,ideal,pressure,temperature,volume
        !          9560: air,pressure,surface,temperature,volume
        !          9561: energy,gas,kinetic,pressure,temperature
        !          9562: atom,hydrogen,proton,speed,temperature
        !          9563: gas,molecules,speed,surface,temperature,velocity
        !          9564: collision,molecule,pressure,temperature
        !          9565: average,number,speed
        !          9566: acceleration,gravity,mass,radius,speed,surface,temperature
        !          9567: average,constant,gas,ideal,pressure,speed,temperature
        !          9568: gas,ideal,pressure,temperature,volume
        !          9569: kelvin,molecule,speed,temperature
        !          9570: linear,temperature
        !          9571: air,constant,force,metal,pressure,temperature,volume
        !          9572: atom,average,data,energy,kinetic,light,spectrum,sun,surface,temperature,translation
        !          9573: heat,specific
        !          9574: ice,melt,temperature,water
        !          9575: heat,ice,specific
        !          9576: constant,heat,liquid,specific,temperature
        !          9577: block,ice
        !          9578: block,bullet,energy,half,kinetic,pendulum,speed,temperature,thermal
        !          9579: heat,mass,specific,temperature
        !          9580: capacity,heat,temperature,water
        !          9581: heat,mass,metal,specific,temperature,water
        !          9582: block,capacity,equilibrium,heat,ice,mass,temperature,thermal,water
        !          9583: equilibrium,ice,temperature
        !          9584: ice,mass,temperature,water
        !          9585: block,equilibrium,heat,specific,temperature,thermal,units,water
        !          9586: energy,gas,heat,work
        !          9587: energy,gas,work
        !          9588: block,bullet,energy,temperature
        !          9589: bullet,energy,kinetic,melt,speed,temperature
        !          9590: constant,gas,heat,ideal,pressure,process,volume,work
        !          9591: constant,gas,heat,ideal,pressure,process,volume,work
        !          9592: diagram,gas,ideal,line,work
        !          9593: expansion,gas,heat,ideal,isothermal,pressure,volume,work
        !          9594: gas,heat,pressure,volume
        !          9595: energy,ev,molecule,temperature
        !          9596: compressed,gamma,gas,moles,pressure,volume
        !          9597: constant,gas,heat,moles,pressure,temperature,volume
        !          9598: equilibrium,gas,ideal,law,solid,temperature
        !          9599: cycle,efficiency,engine,heat,work
        !          9600: cycle,efficiency,engine,heat,work
        !          9601: cycle,efficiency,engine,power
        !          9602: coefficient,efficiency,energy,engine,heat,reservoir,reversible
        !          9603: constant,cycle,diagram,efficiency,engine,expansion,gas,heat,ideal,isothermal,temperature,volume,work
        !          9604: carnot,cycle,efficiency,engine,heat,reservoir,temperatures,work
        !          9605: coefficient,temperature
        !          9606: efficiency,engine,reservoir,reversible,work
        !          9607: carnot,coefficient,cycle,efficiency,engine,heat,reservoir,temperatures,work
        !          9608: discharge,efficiency,engine,heat,maximum,power,temperatures
        !          9609: carnot,coefficient,engine,heat,power,temperature,temperatures
        !          9610: heat,ideal,maximum,temperature
        !          9611: entropy,gas,ideal,moles,process,volume
        !          9612: 
        !          9613: entropy,ice,kg,pressure,water
        !          9614: cycle,entropy,heat,reservoir,reversible,temperature,work
        !          9615: entropy,expansion,free,gas,ideal,moles,volume
        !          9616: air,entropy,temperature
        !          9617: entropy,expansion,free,gas,ideal,moles,volume
        !          9618: entropy,heat,reservoir,work
        !          9619: cycle,efficiency,engine,heat,work
        !          9620: carnot,cycle,efficiency,engine,law,ratio,reservoir
        !          9621: electric,entropy,power,temperature
        !          9622: ice,maximum,temperature,work
        !          9623: air,heat,power,temperature
        !          9624: average,capacity,heat,minimum,power,temperature
        !          9625: 
        !          9626: length,structure
        !          9627: 
        !          9628: 
        !          9629: degrees,expansion,linear,temperature,units
        !          9630: plate,process,temperature
        !          9631: coefficient,expansion,gas,sun,temperature,volume
        !          9632: glass,temperature,volume
        !          9633: 
        !          9634: gas,ideal,pressure,volume
        !          9635: circular,cross,gradient,heat,radius,resistance,surface,temperature,thermal
        !          9636: heat,temperature
        !          9637: metal,resistance,thermal
        !          9638: area,heat,radius,surface,temperature,thermal
        !          9639: area,external,heat,length,parallel,pipe,power,surface,temperature,water
        !          9640: maximum,surface,temperature,wavelength
        !          9641: area,electric,heat,radiation,surface,temperature
        !          9642: heat,radiation,radius,solid,sphere,temperature,vacuum
        !          9643: electric,power,surface,temperature
        !          9644: earth,expansion,temperature
        !          9645: area,constant,distance,earth,perpendicular,power,radius,rays,sun,temperature,unit
        !          9646: equilibrium,external,temperature,thermal,units
        !          9647: temperature,temperatures
        !          9648: force,length,perpendicular,radius,temperature
        !          9649: heat,temperature,water
        !          9650: charge,electrons
        !          9651: atom,atoms,carbon,charge,coulombs,electrons,kg,number,positive,protons,units
        !          9652: charge,force
        !          9653: charges,direction,force,negative,positive
        !          9654: charge,force,magnitude
        !          9655: charge,electric,field,magnitude
        !          9656: charges,electric,field
        !          9657: charge,direction,electric,field,force,gravity,kg,magnitude,mass,net
        !          9658: charge,earth,electric,electron,field,force,gravitational,magnitude,mass,ratio,surface,weight
        !          9659: charge,charges,electric,field,force,magnitude,positive
        !          9660: charge,electric,field
        !          9661: acceleration,charge,electric,electron,field,light,magnitude,mass,motion,particle,ratio,relativistic,significant,speed
        !          9662: acceleration,electric,field,light,magnitude,proton,speed
        !          9663: acceleration,direction,electric,electron,field,velocity
        !          9664: distance,electric,electron,field,speed
        !          9665: centripetal,circular,electron,electrostatic,energy,force,kinetic,orbit,proton,radius,speed
        !          9666: charge,direction,electric,energy,field,kinetic,mass
        !          9667: constant,cross,degrees,electric,electron,field,particle,proton,speed
        !          9668: charges,dipole,moment
        !          9669: angle,dipole,electric,field,magnitude,moment,parallel,perpendicular,torque
        !          9670: atom,charge,charges,electron,force,free,mass,repulsion
        !          9671: ball,charge,electric,field,height,mass,speed
        !          9672: angle,angles,charge,length,mass,sphere,spheres,string,units
        !          9673: center,charge,coulomb,electron,force,mass,particle,separation,speed
        !          9674: charge,direction,electric,field,kg,length,magnitude,mass,pendulum,period
        !          9675: charge,density,electric,field,line,linear
        !          9676: center,charge,electric,field,radius
        !          9677: charge,density,plane,radius,surface
        !          9678: charge,density,distance,electric,field,radius
        !          9679: center,charge,electric,field,line,number,radius
        !          9680: angle,direction,electric,field,flux,parallel,plane,positive,square
        !          9681: center,charge,flux,length,square
        !          9682: charge,curvature,density,earth,electric,field,surface,volume
        !          9683: charge,density,electric,field,radius,spherical,surface
        !          9684: charge,density,electric,field,magnitude,radius,sphere,volume
        !          9685: charge,density,electric,field,length,radius,surface
        !          9686: charge,conductor,constant,cross,density,distance,electric,field,number,surface,units
        !          9687: charge,density,electric,external,field,magnitude,perpendicular,radius
        !          9688: charge,electric,external,field,induced,magnitude,metal,perpendicular,square
        !          9689: charge,conducting,density,electric,field,magnitude,plane,square,surface
        !          9690: charge,earth,electric,field,surface
        !          9691: air,charge,conducting,electric,electricity,field,magnitude,minimum,radius,sphere
        !          9692: charge,charged,component,density,electric,field,plane,surface
        !          9693: angle,charge,component,density,electric,field,plane,si,surface
        !          9694: charge,density,distance,force,length,line,number,perpendicular
        !          9695: charge,circular,kg,line,mass,orbit,period,plane,radius
        !          9696: angular,center,charge,charges,equilibrium,frequency,length,magnitude,mass,negative,oscillates,oscillation,particle,plane,position,positive,radius
        !          9697: angular,center,charge,charges,constant,density,equilibrium,frequency,length,linear,magnitude,mass,negative,oscillates,oscillation,particle,plane,position,positive,radius
        !          9698: charge,density,electric,field,line
        !          9699: charge,density,electric,field,line,linear
        !          9700: charge,direction,electric,energy,field,kinetic,positive,potential
        !          9701: charge,density,electric,field,magnitude,plane,potential,surface,work
        !          9702: charges,distance,energy,ev,ions
        !          9703: accelerating,distance,electric,field,graaff,potential,protons,speed,vacuum,van
        !          9704: electron,electrons,energy,joules,picture,potential,relativistic,speed,volts
        !          9705: charges,potential
        !          9706: center,charges,electric,potential,radius,sphere
        !          9707: direction,electric,field,magnitude,negative,positive,potential
        !          9708: electric,field,potential
        !          9709: charge,charged,distance,potential,potentials,radius,sphere,surface
        !          9710: charge,density,plane,potentials,surface
        !          9711: air,charge,conductor,dielectric,maximum,net,potential,radius,sphere,spherical
        !          9712: air,charge,conductor,density,dielectric,surface
        !          9713: charge,conducting,density,electric,field,radius,solution,sphere,spheres,surface,thin,wire
        !          9714: air,charged,conducting,dielectric,electric,field,potential,radius,sphere
        !          9715: electrons,isolated,potential,radius,sphere
        !          9716: charge,energy,kg,kinetic,mass,particle
        !          9717: charge,generator,graaff,minimum,potential,power,van
        !          9718: charge,charged,metal,potential,proton,radius,speed,sphere,spheres,surface
        !          9719: charge,density,electric,field,magnitude,metal,potential,radius,sphere,surface
        !          9720: center,charge,charged,distance,electric,field,magnitude,potential
        !          9721: 
        !          9722: charges,electrostatic,energy,fission,mev,neutron,neutrons,nuclei,potential,power,process,radius
        !          9723: center,charge,distance,electrostatic,energy,mev,nucleus,particle,particles,potential,radioactive,separation
        !          9724: center,charge,charged,distance,plane,position,radius,work
        !          9725: charge,conducting,density,isolated,parallel,plate,plates,surface,wire
        !          9726: charged,conductor,electrostatic,energy,isolated,potential,radius,spherical
        !          9727: charges,electrostatic,energy,magnitude,negative,positive,potential,square
        !          9728: charge,charges,distance,kg,mass,speed,square
        !          9729: capacitance,capacitor,charge,conductors,potential
        !          9730: area,capacitance,capacitor,length,plates,separation,square
        !          9731: capacitor,charge,charged,energy,stored
        !          9732: capacitor,charge,charged,energy,half,stored
        !          9733: capacitor,charge,charged,energy,stored
        !          9734: area,average,earth,electric,electrical,energy,field,magnitude,stored,surface
        !          9735: area,capacitor,charge,charged,energy,plate,plates,positive,potential,stored,voltage
        !          9736: capacitance,capacitor,equivalent,parallel,series
        !          9737: capacitance,capacitors,equivalent,maximum,voltage,voltages
        !          9738: air,capacitance,capacitor,charge,dielectric,maximum,plate,plates,potential,separation,stored
        !          9739: capacitor,charge,circular,electric,field,plate,plates,radius,separation,stored,voltage
        !          9740: air,area,capacitance,capacitor,charge,charged,constant,dielectric,energy,plate,plates,potential,stored
        !          9741: air,area,capacitor,charged,maximum,minimum,plates,potential,separation
        !          9742: capacitance,capacitor,length,radius
        !          9743: battery,capacitance,capacitor,charged,potential
        !          9744: capacitor,charged,energy,negative,plate,positive,potential,voltage
        !          9745: battery,capacitor,capacitors,energy,negative,plate,positive,potential,series,stored
        !          9746: battery,capacitor,capacitors,charge,charged,energy,stored
        !          9747: area,capacitance,capacitor
        !          9748: area,capacitor,constant,dielectric,electric,field,minimum,plate,plates,potential,separation
        !          9749: 
        !          9750: area,capacitor,capacitors,conducting,constant,dielectric,number,square,surface,voltage
        !          9751: atom,electron,electrons,free,velocity,wire
        !          9752: area,charge,electrons,flow,ions,positive
        !          9753: atom,electron,electrons,free,velocity,wire
        !          9754: 
        !          9755: electric,field,magnitude,potential,resistance,wire
        !          9756: potential,resistance,resistor
        !          9757: area,block,carbon,length,potential,resistance,resistor,square
        !          9758: carbon,length,radius,resistivity,resistor
        !          9759: area,resistance
        !          9760: potential,wire
        !          9761: constant,potential,resistance
        !          9762: length,potential,resistance,resistivity
        !          9763: coefficient,constant,resistance,resistivity,temperature,voltage
        !          9764: carbon,circuits,maximum,resistor,voltage
        !          9765: battery,emf,resistance,terminal,voltage
        !          9766: electric,energy,physics
        !          9767: average,batteries,battery,charge,coulombs,electric,energy,force,frictional,power,speed,units
        !          9768: ohm,resistance,units
        !          9769: batteries,battery,circuit,potential,power,resistance,resistor
        !          9770: capacitor,charge,charged,circuit,constant,resistor
        !          9771: capacitor,circuit,emf,resistance,resistor,voltage
        !          9772: capacitor,charge,resistance
        !          9773: 
        !          9774: 
        !          9775: ac,resistors
        !          9776: battery,capacitor,capacitors,charges,circuit
        !          9777: 
        !          9778: average,distance,line,speed
        !          9779: free,fall,air,resistance
        !          9780: acceleration,constant,distance,moment,speed
        !          9781: free,fall,acceleration,air,ball,constant,free,gravity,height,kg,magnitude,mass,resistance,surface
        !          9782: accelerates,acceleration,constant,distance,speed
        !          9783: accelerates,acceleration,constant,distance,speed
        !          9784: acceleration,distance,speed,velocity
        !          9785: exam,half,spring,units
        !          9786: 
        !          9787: 
        !          9788: 
        !          9789: 
        !          9790: 
        !          9791: 
        !          9792: 
        !          9793: 
        !          9794: 
        !          9795: 
        !          9796: 
        !          9797: 
        !          9798: 
        !          9799: 
        !          9800: 
        !          9801: 
        !          9802: 
        !          9803: 
        !          9804: 
        !          9805: 
        !          9806: 
        !          9807: 
        !          9808: 
        !          9809: 
        !          9810: 
        !          9811: 
        !          9812: 
        !          9813: 
        !          9814: 
        !          9815: 
        !          9816: 
        !          9817: 
        !          9818: 
        !          9819: 
        !          9820: 
        !          9821: 
        !          9822: 
        !          9823: 
        !          9824: 
        !          9825: 
        !          9826: 
        !          9827: 
        !          9828: 
        !          9829: 
        !          9830: 
        !          9831: 
        !          9832: 
        !          9833: line,lines,reference
        !          9834: angle,db,ev,hz,kg,ohm,unit,units
        !          9835: 
        !          9836: 
        !          9837: 
        !          9838: 
        !          9839: average,circular,collisions,conservation,dynamics,energy,exam,forces,free,friction,kinetic,lab,laws,momentum,motion,newtons,physics,power,rotational,series,solids,torque,trigonometry,vectors,work
        !          9840: 
        !          9841: number,positive,power
        !          9842: length,ratio,unit,volume
        !          9843: air,ball,center,field,line,plane,trajectory
        !          9844: acceleration,distance,speed,velocity
        !          9845: accelerating,acceleration,constant,crosses,displacement,kg,mass,negative,number,position,speed,velocity
        !          9846: height,pendulum,position
        !          9847: air,ball,height,maximum,resistance,velocity
        !          9848: acceleration,bullet,constant,negative,perpendicular,speed
        !          9849: conversion,unit
        !          9850: acceleration,constant,motion
        !          9851: motion,projectile,vectors
        !          9852: forces,friction,laws,newtons
        !          9853: conversion,unit
        !          9854: car,speed
        !          9855: physics,work
        !          9856: kinetic,energy,angle,cart,degrees,force,length,work
        !          9857: 1,d motion,coefficient,earth,friction,negative,slides,speed,work
        !          9858: angle,center,tension,weight
        !          9859: component,direction,vector
        !          9860: component,direction,vector,vectors
        !          9861: 
        !          9862: 2,angle,d,displacement,magnitude,positive,vector
        !          9863: 2,d kinematics,acceleration,air,angle,ball,field,height,maximum,velocity
        !          9864: acceleration,angle,block,coefficient,components,force,friction,frictional,frictionless,kinetic,magnitude,motion,speed,vector
        !          9865: acceleration,block,frictionless,gravity,pulley,string
        !          9866: acceleration,due to gravity,earth,moon
        !          9867: acceleration,force,tension,tugofwar
        !          9868: 
        !          9869: accelerates,force,forces,gravity,kg,law,mass,net,newtons,string,tension
        !          9870: area,radius,sphere,surface
        !          9871: 
        !          9872: 
        !          9873: 
        !          9874: 
        !          9875: height,speed
        !          9876: 
        !          9877: height,maximum,projectile,velocity
        !          9878: acceleration,height
        !          9879: ball,speed
        !          9880: height,maximum,velocity
        !          9881: acceleration,constant,light,speed
        !          9882: average,displacement,magnitude,plane,speed,vector,velocity
        !          9883: acceleration,average,constant,magnitude,plane,process,speed
        !          9884: air,ball,component,distance,height,maximum,velocity
        !          9885: air,component,distance,magnitude,projectile,speed,velocity
        !          9886: distance,speed
        !          9887: acceleration,curvature,radius,speed
        !          9888: air,angle,degrees,frame,height,inclined,resistance,speed,vector,velocity
        !          9889: angle,degrees,direction,speed,velocity
        !          9890: acceleration,distance,earth,gravity,line,linear,maximum
        !          9891: 
        !          9892: degrees,graph,inclined,motion,plane,positive,spherical,velocity
        !          9893: energy,friction,heat,kinetic,work
        !          9894: energy,friction,heat,kinetic
        !          9895: 
        !          9896: field,gravitational
        !          9897: constant,force,speed,water
        !          9898: external,force
        !          9899: air,height,maximum,resistance,speed
        !          9900: body,forces,height,mass,maximum,spring
        !          9901: angle,block,conservation,constant,energy,incline,mass,maximum,spring
        !          9902: angle,power,tension,watt
        !          9903: 
        !          9904: exam,phys,physics,solution
        !          9905: 
        !          9906: 
        !          9907: force,friction,process,speed,work
        !          9908: ball,energy,gravitational,height,length,potential,string
        !          9909: angle,circular,energy,gravitational,position,potential
        !          9910: block,compressed,constant,equilibrium,frictionless,position,speed,spring,surface,work
        !          9911: energy,friction,mechanical,speed
        !          9912: energy,friction,joule,mass,slides,velocity
        !          9913: coefficient,friction,kinetic,mass,speed,work
        !          9914: momentum,speed
        !          9915: average,ball,direction,force,impulse,magnitude,speed
        !          9916: friction,ice,speed
        !          9917: center,friction,ice,physics,radius,speed,units
        !          9918: block,bullet,collide,collision,direction,linear,magnitude,momentum,speed
        !          9919: bullet,conserved,distance,energy,pendulum,speed,units
        !          9920: collision,light,speed
        !          9921: average,bullet,force,magnitude,velocity
        !          9922: ball,collision,frictionless,mass,slides,wire
        !          9923: constant,length,power,velocity,work
        !          9924: 
        !          9925: bullet,earth,linear,magnitude,mass,momentum,orbital,proton,speed
        !          9926: earth,linear,magnitude,mass,momentum,orbital,proton,speed
        !          9927: direction,friction,mass
        !          9928: collide,collision,elastic,frictionless,height,masses,negative,positive,speed,velocity
        !          9929: collision,direction,energy,kinetic,mass,speed
        !          9930: ball,balls,collision,elastic,mass,momentum,solid,speed
        !          9931: ball,balls,collision,mass,momentum,solid,speed
        !          9932: 
        !          9933: circular,constant,speed
        !          9934: acceleration,angular,constant,number,rotates,speed
        !          9935: 
        !          9936: 
        !          9937: acceleration,angular,center,constant,linear,maximum,number,rotating,rotation,speed
        !          9938: acceleration,centripetal,constant,radius,rotates,speed
        !          9939: circular,coefficient,friction,mass,radius
        !          9940: circular,coefficient,friction,mass,radius
        !          9941: acceleration,angular,centripetal,circular,coefficient,force,friction,mass,minimum,radius,rotating,static,velocity
        !          9942: 
        !          9943: 
        !          9944: force,gravitational
        !          9945: kg,law,mass,orbital,period,radius,rotates,rotation,satellite,units
        !          9946: kg,mass,orbit,period,radius,satellite,units
        !          9947: angle,centripetal,coefficient,curvature,degrees,force,forces,friction,parallel,radius,speed
        !          9948: angle,centripetal,curvature,degrees,force,forces,net,parallel,radius,speed,weight
        !          9949: circular,laws
        !          9950: acceleration,average,negative,rotating
        !          9951: angle,angles,collide,collision,direction,inelastic,positive,speed,weight
        !          9952: 
        !          9953: 
        !          9954: block,bullet,direction,height,positive,speed,velocity
        !          9955: 
        !          9956: 
        !          9957: angle,beam,force,light,mass,tension
        !          9958: angular,center,circular,frictionless,kg,momentum,rotates,velocity
        !          9959: angular,center,circular,direction,force,frictionless,kg,momentum,rotates,rotating,speed,torque
        !          9960: data,force,perpendicular,plane,rotation,torque
        !          9961: degrees,density,energy,kg,kinetic,mass,motion,rotational,solid,speed,sphere,spheres
        !          9962: 
        !          9963: center,mass
        !          9964: angular,kg,linear,magnitude,mass,radius,rolling,speed,velocity
        !          9965: beam,component,diagram,distance,force,maximum,tension,wire
        !          9966: body,equivalent,food,force,forces,magnitude,tension
        !          9967: 
        !          9968: inertia,kg,masses,moment
        !          9969: angular,constant,force,motion,newtons,radius,speed
        !          9970: acceleration,angular,centripetal,gravity,motion
        !          9971: 
        !          9972: angular,dynamics
        !          9973: 
        !          9974: 
        !          9975: 
        !          9976: 
        !          9977: radius,nucleus
        !          9978: energy,distance,particle,collision,nucleus
        !          9979: average,energy
        !          9980: activity,units
        !          9981: radioactive
        !          9982: carbon,units
        !          9983: energy,mass,decay
        !          9984: maximum,energy,decays,kinetic,mass,particles
        !          9985: carbon,decays,activity,units
        !          9986: number,mass,product,light
        !          9987: heat,growth,energy,temperature,water,radiation,specific,mass,units
        !          9988: average,units
        !          9989: radiation,distance,radioactive,rays,gamma
        !          9990: photons,co,minimum,activity,beta,energy,mass,decays,energies,particle,gamma
        !          9991: activity,volume,solution,units
        !          9992: period,activity,component,mass,engine,volume,isotope,radioactive
        !          9993: number,carbon,decays,units,decay
        !          9994: energy,fission
        !          9995: number,average,energy,fission
        !          9996: efficiency,mass,fission,power,conversion,plant
        !          9997: frictional,average,fission,engine,efficiency,water,isotope
        !          9998: energy,nuclei,water,hydrogen,mass,units
        !          9999: kinetic,energy,photon,proton
        !          10000: number,momentum,line,law,reactions,charge,angular,conservation
        !          10001: number,line,charge,processes,conservation,process
        !          10002: number,line,electromagnetic,conserved,charge,processes,process
        !          10003: ac,conserved,processes
        !          10004: line,states,particles
        !          10005: thermal,atom,kinetic,energy,fission,half,neutron,collision,collisions
        !          10006: energy,efficiency,average,mass,fission,nuclear,power,conversion,constant
        !          10007: 
        !          10008: 
        !          10009: limit,log,slope,sin,graphical,ln,identity,tan,exp,differentiate,tangent,inverse,graph,polynomial,cos,trigonometric,function,polynomials,curve
        !          10010: 
        !          10011: 
        !          10012: 
        !          10013: 
        !          10014: 
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        !          10086: 
        !          10087: 
        !          10088: 
        !          10089: 
        !          10090: 
        !          10091: 
        !          10092: 
        !          10093: resonance,introduction
        !          10094: 
        !          10095: 
        !          10096: 
        !          10097: reference,welcome,syllabus,help,index
        !          10098: syllabus,course
        !          10099: physics,exam,units
        !          10100: 
        !          10101: 
        !          10102: 
        !          10103: 
        !          10104: 
        !          10105: 
        !          10106: 
        !          10107: spring,exam
        !          10108: 
        !          10109: 
        !          10110: 
        !          10111: 
        !          10112: center,free,phy,charge,spring,physics,series
        !          10113: 
        !          10114: 
        !          10115: 
        !          10116: 
        !          10117: 
        !          10118: 
        !          10119: 
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        !          10142: 
        !          10143: 
        !          10144: 
        !          10145: 
        !          10146: 
        !          10147: 
        !          10148: exam,units
        !          10149: exam,units
        !          10150: unit,wave,exam
        !          10151: 
        !          10152: 
        !          10153: 
        !          10154: 
        !          10155: 
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        !          10196: 
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        !          10199: 
        !          10200: 
        !          10201: 
        !          10202: 
        !          10203: 
        !          10204: 
        !          10205: 
        !          10206: minimum,maximum,solution,constant
        !          10207: 
        !          10208: bases,logarithm,base,logarithms
        !          10209: derivatives
        !          10210: 
        !          10211: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          10212: 
        !          10213: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          10214: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          10215: trigonometry,angle,cosine,tangent,sine
        !          10216: acceleration,contact,forces,gravitational,internal,external,force,noncontact,resultant,weight
        !          10217: coordinate,center,free,system,components,orientation,orient,component,diagram,forces,body,force,mass,act,diagrams,onebody,acting
        !          10218: coordinate,application,of,Newton,magnitude,result,system,components,surface,acceleration,newtons,s,component,angles,forces,angle,normal,force,axes,axis,second,ratio,resultant,law,weight,magnitudes,lawnewtons,accelerating,gravity
        !          10219: 
        !          10220: 
        !          10221: 
        !          10222: 
        !          10223: 
        !          10224: 
        !          10225: 
        !          10226: 
        !          10227: 
        !          10228: 
        !          10229: 
        !          10230: 
        !          10231: 
        !          10232: 
        !          10233: cavendish,balance,newtons,newton,gravitation,law
        !          10234: 
        !          10235: force,mass,ratio,weight,gravitational
        !          10236: radius,parallel,acceleration,earth,sun,period,mass,weight,orbital,gravitational,gravity
        !          10237: G,centerofmass,cavendish,newtons,earth,newton,gravitation,moon,universal
        !          10238: conic,planetary,revolution,centripetal,solar,system,constant,acceleration,newtons,momentum,motion,perigee,period,gravitation,force,keplers,univ,kinematical,law,central,angular,velocity,apogee,section,laws,universal,eccentricity
        !          10239: point,masses,acceleration,newtons,asymmetries,newton,uniform,pointlike,mass,law,nonuniform,density
        !          10240: 
        !          10241: motions,planetary,solar,system,motion,copernicus,johannes,kepler,ptolemy,planets,laws,heliocentric
        !          10242: semimajor,motions,elliptical,first,motion,perigee,ellipses,Kepler,keplers,third,kepler,law,ellipse,apogee,elliptic
        !          10243: conservation,newtons,square,momentum,vector,newton,inverse,gravitation,inversesquare,force,comet,kinematical,central,angular,comets,radial,inversesquarelaw,halleys,universal
        !          10244: 
        !          10245: conic,circle,perigee,force,parabola,central,ellipse,apogee,section,hyperbola,eccentricity
        !          10246: constant,reference,earth,sun,distance,force,field,frame,gravitational
        !          10247: experiment,principle,newtons,equivalence,passive,einstein,dicke,forces,gravitation,tidal,force,mass,inertial,third,second,galileos,gravitational,active
        !          10248: rotating,centripetal,balance,acceleration,newtons,reference,earth,sun,motion,force,rotates,law,frame,gravitational,accelerating
        !          10249: floats,pendulum,error,masses,kg,car,submerged,equilibrium,acceleration,reference,fluid,earth,motion,forces,distance,mass,archimedes,rotates,field,cart,gravitational,fields,friction,density,gravity,rotating,ferris,spring,engine,centripetal,accelerates,picture,balance,liquid,newtons,rotation,speed,float,sun,newton,force,plane,metal,weigh,weight,block,frame,accelerating,buoyant
        !          10250: principle,newtons,einsteins,newton,galileo,forces,force,inertial,universalacceleration,explanation,measurement
        !          10251: newtons,newton,galileo,gravitation,galileos,gravitational,universal,falling
        !          10252: masses,acceleration,newtons,gravitation,mass,frictionless,inertial,gravitational,gravity
        !          10253: noninertialframe,circular,centripetal,principle,relativity,equivalence,einsteins,motion,einstein,forces,force,inertial,noninertial,frame,relativistic,gravity
        !          10254: principle,relativity,einsteins,nonlocal,fall,elevator,freely,local,observer,falling,gravity
        !          10255: ferris,artificial,plasma,principle,acceleration,equivalence,wheel,centrifuge,centrifugal,field
        !          10256: kreuzer,kreuzers,principle,newtons,passive,gravitation,mass,gravitational,active
        !          10257: pendulum,constant,torsion,passive,forces,accuracy,force,mass,centrifugal,inertial,pendulums,gravity
        !          10258: 
        !          10259: 
        !          10260: 
        !          10261: 
        !          10262: 
        !          10263: 
        !          10264: 
        !          10265: 
        !          10266: 
        !          10267: 
        !          10268: 
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        !          10270: 
        !          10271: 
        !          10272: 
        !          10273: 
        !          10274: 
        !          10275: 
        !          10276: 
        !          10277: 
        !          10278: 
        !          10279: 
        !          10280: 
        !          10281: 
        !          10282: 
        !          10283: 
        !          10284: 
        !          10285: 
        !          10286: 
        !          10287: 
        !          10288: 
        !          10289: 
        !          10290: 
        !          10291: 
        !          10292: 
        !          10293: 
        !          10294: 
        !          10295: le,length,ne,ring,error,st,color,engine,string,number,height,black,ge,gt,image,loop
        !          10296: 
        !          10297: 
        !          10298: 
        !          10299: 
        !          10300: 
        !          10301: 
        !          10302: 
        !          10303: 
        !          10304: 
        !          10305: 
        !          10306: 
        !          10307: 
        !          10308: 
        !          10309: 
        !          10310: 
        !          10311: 
        !          10312: 
        !          10313: 
        !          10314: 
        !          10315: 
        !          10316: 
        !          10317: 
        !          10318: 
        !          10319: 
        !          10320: 
        !          10321: 
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        !          10324: 
        !          10325: 
        !          10326: 
        !          10327: 
        !          10328: 
        !          10329: 
        !          10330: 
        !          10331: 
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        !          10339: 
        !          10340: 
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        !          10360: 
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        !          10364: 
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        !          10380: 
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        !          10399: 
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        !          10409: 
        !          10410: 
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        !          10427: 
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        !          10439: 
        !          10440: 
        !          10441: 
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        !          10446: 
        !          10447: 
        !          10448: 
        !          10449: 
        !          10450: 
        !          10451: 
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        !          10453: 
        !          10454: 
        !          10455: 
        !          10456: 
        !          10457: 
        !          10458: 
        !          10459: 
        !          10460: 
        !          10461: 
        !          10462: 
        !          10463: 
        !          10464: 
        !          10465: 
        !          10466: 
        !          10467: 
        !          10468: st,le,color,length,ne,height,ge,ring,engine,string,gt,image
        !          10469: 
        !          10470: le,length,ne,ring,error,st,black,color,ge,engine,string,gt,image,loop
        !          10471: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          10472: 
        !          10473: 
        !          10474: 
        !          10475: 
        !          10476: 
        !          10477: 
        !          10478: 
        !          10479: 
        !          10480: 
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        !          10482: 
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        !          10485: 
        !          10486: 
        !          10487: 
        !          10488: 
        !          10489: 
        !          10490: 
        !          10491: 
        !          10492: 
        !          10493: 
        !          10494: 
        !          10495: 
        !          10496: graphical,vector,trigonometric
        !          10497: 
        !          10498: 
        !          10499: 
        !          10500: 
        !          10501: 
        !          10502: 
        !          10503: 
        !          10504: 
        !          10505: 
        !          10506: 
        !          10507: 
        !          10508: 
        !          10509: 
        !          10510: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          10511: 
        !          10512: 
        !          10513: 
        !          10514: 
        !          10515: 
        !          10516: 
        !          10517: 
        !          10518: 
        !          10519: 
        !          10520: 
        !          10521: 
        !          10522: 
        !          10523: 
        !          10524: 
        !          10525: 
        !          10526: 
        !          10527: 
        !          10528: 
        !          10529: 
        !          10530: 
        !          10531: 
        !          10532: 
        !          10533: 
        !          10534: 
        !          10535: 
        !          10536: 
        !          10537: 
        !          10538: 
        !          10539: 
        !          10540: 
        !          10541: 
        !          10542: 
        !          10543: 
        !          10544: 
        !          10545: 
        !          10546: 
        !          10547: 
        !          10548: 
        !          10549: 
        !          10550: 
        !          10551: 
        !          10552: 
        !          10553: 
        !          10554: 
        !          10555: 
        !          10556: 
        !          10557: 
        !          10558: 
        !          10559: 
        !          10560: 
        !          10561: 
        !          10562: 
        !          10563: 
        !          10564: 
        !          10565: 
        !          10566: 
        !          10567: 
        !          10568: 
        !          10569: 
        !          10570: 
        !          10571: 
        !          10572: 
        !          10573: 
        !          10574: 
        !          10575: 
        !          10576: 
        !          10577: 
        !          10578: 
        !          10579: 
        !          10580: 
        !          10581: 
        !          10582: 
        !          10583: 
        !          10584: 
        !          10585: 
        !          10586: 
        !          10587: 
        !          10588: 
        !          10589: 
        !          10590: 
        !          10591: 
        !          10592: 
        !          10593: 
        !          10594: 
        !          10595: 
        !          10596: 
        !          10597: 
        !          10598: products,unit,product,vectors,components,vector,cartesian,scalar
        !          10599: two,product,addition,triad,of,subtraction,axes,subtract,coordinate,zero,vectors,components,vector,component,cartesian,terms,sum,scalar,cross,in
        !          10600: product,right,of,hand,magnitude,zero,dot,vector,rule,scalar,cross
        !          10601: trigonometry,determination,two,product,addition,of,result,subtraction,resultant,magnitude,vectors,vector,definition,sum,geometric,trigonometric
        !          10602: of,quantity,magnitude,direction,vector,scalar
        !          10603: product,sines,of,cosines,components,component,cosine,law,terms,scalar,in
        !          10604: unit,length,magnitude,direction,vectors,vector,exam,units
        !          10605: number,angle,unit,product,addition,angles,co,magnitude,direction,vectors,components,vector,physics,calculus
        !          10606: 
        !          10607: length,height,error,black,color,engine,string,image,loop
        !          10608: trigonometry,angle,line,work,degrees,angles,lines,magnitude,direction,components,vector,component,perpendicular
        !          10609: contact,component,motion,law,laws,surface,newtons,force,noncontact,second,resultant,onebody
        !          10610: direction,components,acceleration,forces,parallel,surface,diagram,force,velocity
        !          10611: magnitude,components,acceleration,forces,parallel,accelerates,surface,diagram,force,plane,tension,incline,velocity,onebody,accelerating
        !          10612: coordinate,system,acceleration,contact,component,mass,trajectories,diagram,force,resultant,diagrams
        !          10613: vectors,acceleration,frictional,straightline,vector,mass,unknown,friction,trajectories,diagram,force,resultant
        !          10614: 
        !          10615: 
        !          10616: 
        !          10617: 
        !          10618: 
        !          10619: 
        !          10620: 
        !          10621: 
        !          10622: 
        !          10623: 
        !          10624: 
        !          10625: 
        !          10626: 
        !          10627: 
        !          10628: 
        !          10629: 
        !          10630: 
        !          10631: 
        !          10632: 
        !          10633: 
        !          10634: 
        !          10635: 
        !          10636: 
        !          10637: 
        !          10638: 
        !          10639: 
        !          10640: 
        !          10641: 
        !          10642: 
        !          10643: 
        !          10644: 
        !          10645: 
        !          10646: 
        !          10647: 
        !          10648: 
        !          10649: 
        !          10650: 
        !          10651: 
        !          10652: 
        !          10653: 
        !          10654: 
        !          10655: 
        !          10656: 
        !          10657: 
        !          10658: 
        !          10659: 
        !          10660: 
        !          10661: 
        !          10662: 
        !          10663: 
        !          10664: 
        !          10665: 
        !          10666: 
        !          10667: 
        !          10668: 
        !          10669: 
        !          10670: 
        !          10671: 
        !          10672: 
        !          10673: 
        !          10674: 
        !          10675: 
        !          10676: 
        !          10677: 
        !          10678: 
        !          10679: 
        !          10680: 
        !          10681: 
        !          10682: 
        !          10683: 
        !          10684: 
        !          10685: 
        !          10686: 
        !          10687: 
        !          10688: 
        !          10689: 
        !          10690: 
        !          10691: 
        !          10692: 
        !          10693: 
        !          10694: 
        !          10695: 
        !          10696: 
        !          10697: 
        !          10698: 
        !          10699: 
        !          10700: 
        !          10701: 
        !          10702: 
        !          10703: 
        !          10704: 
        !          10705: 
        !          10706: reference,exam,units
        !          10707: number,period,unit,force,vectors,vector,exam
        !          10708: maximum,reference,refer,formula,exam,units
        !          10709: minimum,number,work,independent,structure,processes,solution,physics,exam
        !          10710: period,error,processes,spring,physics,exam,units
        !          10711: period,error,processes,spring,physics,exam,units
        !          10712: exam
        !          10713: spring
        !          10714: spring
        !          10715: 
        !          10716: 
        !          10717: reference,spring,physics,exam,units
        !          10718: number,exam,units
        !          10719: maximum,number,reference,period,refer,unit,length,field,work,error,specific,average,ev,solution,max,practice,physics,exam,weight,units
        !          10720: reference,work,formula,free,average,lab,exam,units
        !          10721: maximum,number,unit,nt,equivalent,ac,block,co,ev,ex,max,physics,exam,weight,units
        !          10722: 
        !          10723: motion,satellite,reactions,wave,linear,lorentz,velocity,contraction
        !          10724: pipe,frequencies,direction,superposition,amplitude,longitudinal,mass,unit,length,harmonics,elastic,waves,stretched,wave,wavelength,organ,sound,string,solid,air,transverse,tension,velocity,fundamental,frequency
        !          10725: 
        !          10726: pipe,modes,frequencies,amplitude,distribution,harmonics,waves,wave,organ,sound,string,nodes,overtones,wavelengths,transverse,harmonic,overtone,pressure,velocity,fundamental
        !          10727: normal,modes,frequencies,harmonics,wavelengths,wire
        !          10728: running,normal,modes,frequencies,pipes,waves,wavelengths,transverse,standing
        !          10729: error,black,color,length,height,engine,string,image
        !          10730: 
        !          10731: 
        !          10732: 
        !          10733: 
        !          10734: error,black,color,length,height,engine,string,image,loop
        !          10735: 
        !          10736: error,black,color,length,height,engine,string,image,loop
        !          10737: 
        !          10738: error,black,color,length,height,engine,string,image,loop
        !          10739: 
        !          10740: error,black,color,length,height,engine,string,image,loop
        !          10741: 
        !          10742: error,period,black,color,length,height,engine,string,image,loop
        !          10743: 
        !          10744: error,period,black,color,length,height,engine,string,image,loop
        !          10745: 
        !          10746: error,black,color,length,height,engine,string,image,loop
        !          10747: 
        !          10748: error,black,color,length,height,engine,string,image,loop
        !          10749: error,black,color,length,height,engine,string,image,loop
        !          10750: error,black,color,length,height,engine,string,image,loop
        !          10751: 
        !          10752: error,black,color,length,height,engine,string,image,loop
        !          10753: 
        !          10754: error,black,color,length,height,engine,string,image,loop
        !          10755: 
        !          10756: error,period,black,color,length,height,engine,string,image,loop
        !          10757: 
        !          10758: error,black,color,length,height,engine,string,image,loop
        !          10759: 
        !          10760: 
        !          10761: error,black,color,length,height,engine,string,image,loop
        !          10762: 
        !          10763: error,period,black,color,length,height,engine,string,image,loop
        !          10764: 
        !          10765: error,black,color,length,height,engine,string,image,loop
        !          10766: 
        !          10767: error,black,color,length,height,engine,string,image,loop
        !          10768: 
        !          10769: error,black,color,length,height,engine,string,image,loop
        !          10770: 
        !          10771: error,black,color,length,height,engine,string,image,loop
        !          10772: 
        !          10773: error,black,color,length,height,engine,string,image,loop
        !          10774: error,black,color,length,height,engine,string,image,loop
        !          10775: error,black,color,length,height,engine,string,image,loop
        !          10776: 
        !          10777: error,black,color,length,height,engine,string,image,loop
        !          10778: error,engine,image,black,color,length,height,loop
        !          10779: 
        !          10780: error,black,color,length,height,engine,string,image,loop
        !          10781: 
        !          10782: error,engine,string,image,black,color,length,height,loop
        !          10783: 
        !          10784: 
        !          10785: 
        !          10786: error,engine,image,black,color,length,height,loop
        !          10787: 
        !          10788: error,engine,image,black,color,length,height,loop
        !          10789: 
        !          10790: error,black,color,length,height,engine,image,loop
        !          10791: 
        !          10792: 
        !          10793: 
        !          10794: error,black,color,length,height,engine,image,loop
        !          10795: 
        !          10796: error,black,color,length,height,engine,image,loop
        !          10797: amplitude,derivatives,wavelength
        !          10798: solution,amplitude,number,constant,speed,harmonic,displacement,period,position,sinusoidal,field,angular,velocity,phase,frequency,wave,wavelength
        !          10799: direction,amplitude,sinusoidal,waves,wavelength,displacement,hz,frequency
        !          10800: functions,rate
        !          10801: amplitude,displacement,hz,period,plane,sinusoidal,waves,phase,frequency,wave,wavelength
        !          10802: harmonic,motion,equations,equation,differential,frequency,wave
        !          10803: sign,positive,negative,unit,constant,significant,graph,units
        !          10804: amplitude,constant,harmonic,motion,period,waves,angular,phase,frequency,wave,wavelength
        !          10805: sound,vibrations,amplitude,transmission,speed,physics,unit,waves,wave,light,mechanical
        !          10806: traveling,travel,wave
        !          10807: amplitude,number,wavefunction,period,function,phase,frequency,wave,wavelength
        !          10808: wave
        !          10809: maximum,amplitude,number,motion,oscillation,distance,sinusoidal,field,waves,cycle,wave,wavelength,solution,constant,speed,harmonic,medium,series,phase,oscillations
        !          10810: ordinary,Derivatives,derivatives,Partial,derivative
        !          10811: 
        !          10812: kg,gas,transverse,waves,velocity,frequency,wave,units,wavelength,wire,linear,density
        !          10813: series,spring,physics
        !          10814: period,addition,spring,exam
        !          10815: number,spring,exam,units
        !          10816: 
        !          10817: exam,units
        !          10818: unit,transverse,waves,sound,string,exam
        !          10819: tycho,planetary,of,cavendish,Newton,Copernicus,Brahe,constant,s,motion,Johannes,copernicus,brahe,Kepler,gravitation,johannes,kepler,Henry,Tycho,gravitational,Cavendish,universal
        !          10820: co,cavendish,torque,experiment,balance,apparatus,oscillation,forces,gravitation,force,proportionality,angular,frequency,gravitational,Cavendish,attraction,restoring
        !          10821: 
        !          10822: earth,sun,period,mass,orbital
        !          10823: constant,newtons,newton,gravitation,universally,law,gravitational,universal
        !          10824: constant,newtons,newton,gravitation,gravitational,universal
        !          10825: 
        !          10826: centripetal,center,acceleration,earth,orbit,period,satellite,orbital
        !          10827: circular,centripetal,constant,acceleration,newtons,earth,sun,orbit,period,gravitation,body,orbital,gravitational
        !          10828: circular,centripetal,acceleration,newtons,earth,sun,orbit,period,satellite,gravitation,orbital,gravitational
        !          10829: planetary,centripetal,solar,system,newtons,motion,newton,inversesquare,force,orbits,keplers,law,inversesquarelaw,planets,laws,heliocentric
        !          10830: planetary,perturb,acceleration,gravitation,inertia,inertial,planet,perturbations,gravitational
        !          10831: motion,average,line,dependent,independent,constant,physics,graph,velocity
        !          10832: 
        !          10833: 
        !          10834: orbit,law,fields,square,force,derivation
        !          10835: components,vector,component,angle,product,law,addition,diagram
        !          10836: magnitude,direction,vectors,components,acceleration,reference,vector,motion,position,linear,physics,frame,velocity,units
        !          10837: magnitude,vectors,acceleration,reference,vector,distance,position,air,speed,plane,frame,velocity,units
        !          10838: magnitude,direction,vectors,acceleration,reference,vector,collide,distance,position,perpendicular,particle,particles,speed,plane,collision,velocity
        !          10839: vectors,acceleration,reference,motion,position,linear,velocity,dynamics,relative
        !          10840: current,kinetic,energy,cartesian,field,power,potential,electrostatic,beam,electrons
        !          10841: G,g,newtons,gravitation,force,mass,law,gravitational,universal
        !          10842: G,MKS,parallax,circular,centripetal,Newton,action,g,acceleration,newtons,motion,newton,forces,gravitation,force,third,gravitational,attraction,gravity
        !          10843: G,radius,cavendish,earth,gravitation,force,attractive,weight,gravitational
        !          10844: centerofmass,center,earth,forces,gravitation,moon,gravitational
        !          10845: circular,centripetal,constant,acceleration,square,motion,satellites,inverse,orbit,freefall,satellite,freely,circularorbit,gravitational,universal,gravity
        !          10846: taylors,derivatives,series
        !          10847: differentiation,series,power,expansion
        !          10848: exponential,differentiate,differentiation,taylors,series,power,expansion
        !          10849: 
        !          10850: 
        !          10851: equilibrium,forces,torque,diagram,force
        !          10852: equilibrium,nonconcurrent,forces,static,force,concurrent
        !          10853: parallel,torque,inclined,components,plane,tension,incline,perpendicular
        !          10854: of,center,forces,force,centers,calculus,weight,gravity
        !          10855: parallel,magnitude,degrees,torque,direction,inclined,components,component,angles,forces,angle,force,plane,tension,incline,weight,perpendicular
        !          10856: torque,equilibrium,nonconcurrent,component,forces,static,force,beam,concurrent,weight
        !          10857: action,equilibrium,reaction,diagram,motion,forces,static,force,third,diagrams,onebody
        !          10858: components,component,motion,forces,static,cartesian,law,rigid,Newton,for,first,body,force,concurrent
        !          10859: rigid,torque,center,nonconcurrent,forces,force,lever,resultant,concurrent
        !          10860: 
        !          10861: masses,circular,magnitude,center,free,components,equilibrium,acceleration,reference,vector,torques,component,area,distribution,forces,sphere,angle,static,distance,mass,length,perpendicular,density,work,gravity,solution,torque,surface,constant,rotation,diagram,angles,external,body,force,plane,centers,calculus,tension
        !          10862: masses,magnitude,torque,center,vectors,equilibrium,nonconcurrent,diagram,forces,static,body,force,mass,concurrent,density,gravity
        !          10863: diagram,onebody
        !          10864: objects,parallel,object,torque,center,nonconcurrent,extended,component,equations,forces,force,centers,resultant,concurrent,gravity
        !          10865: center,free,torques,forces,mass,density,gravity,parallel,surface,constant,diagram,exam,body,force,tension
        !          10866: masses,torque,center,components,equilibrium,nonconcurrent,forces,static,force,mass,centers,position,concurrent,gravity
        !          10867: motionless,object,equilibrium,extended,static,force,centers,gravity
        !          10868: on,torque,components,equilibrium,extended,vector,component,conditions,forces,force
        !          10869: point,center,mass,equations
        !          10870: 
        !          10871: symbol
        !          10872: magnitude,direction,number,acceleration,vector,motion,average,digits,position,dimension,graphs,speed,significant,graph,instantaneous,velocity
        !          10873: acceleration,average,distance,constant,speed,accelerate,instantaneous,velocity
        !          10874: maximum,acceleration,average,position,accelerates,speed,displacement,weight,accelerate,instantaneous,velocity
        !          10875: components,trajectory,positive,orbit,negative,position,law,field,expansion,solution,square,satellite,force,series,velocity,process
        !          10876: kinematics,constant,acceleration,speed,displacement,average,instantaneous,velocity,units,dimension
        !          10877: kinematics,one,dimension
        !          10878: displacement
        !          10879: slope,average,instantaneous,velocity,instant
        !          10880: acceleration,average,position,gravity,higher,derivatives,derivative,instantaneous,velocity
        !          10881: integral,acceleration,displacement,average,position,velocity
        !          10882: constant,acceleration
        !          10883: 
        !          10884: communicate,communicating,communication
        !          10885: coordinates,acceleration,component,velocity
        !          10886: maximum,vectors,specific,trajectory,acceleration,vector,component,motion,position,unit,height,dimension,constant,displacement,van,ray,velocity
        !          10887: inclined,acceleration,average,distance,position,velocity
        !          10888: parallel,particle,minimum,direction,components,trajectory,constant,acceleration,vector,component,motion,displacement,average,distance,position,variables,unit,timedependent,instantaneous,velocity,units,gravity
        !          10889: force,analytically,acceleration,graphical,techniques
        !          10890: example,acceleration,graphical,graphically,integration,constant,analytical
        !          10891: twodimensional,projectile,vectors,components,trajectory,vector,component,motion,dimensions,van
        !          10892: kinematics,two,dimensions,dimension
        !          10893: vectors,components,acceleration,vector,component,displacement,position,velocity
        !          10894: range,path,projectile,ballistic,trajectory,parabolic,motion
        !          10895: ray
        !          10896: tangential,circular,differentiation,degrees,slope,chain,acceleration,vector,motion,period,rule,unit,product,radians,addition,perpendicular
        !          10897: particle,circular,chain,vectors,kinematics,acceleration,vector,motion,displacement,uniform,period,rule,angular,velocity
        !          10898: trajectory,acceleration,speed,cartesian
        !          10899: path,circular,center,vectors,acceleration,speed,motion,uniform,position,angular,velocity
        !          10900: tangential,circular,kinematics,constant,vector,motion,period,angular,radial,velocity,frequency
        !          10901: tangential,circular,particles,acceleration,vector,motion,uniform,radial,velocity
        !          10902: tangential,radius,coordinate,circular,polar,trajectory,kinematics,acceleration,speed,vector,motion,unit,radial
        !          10903: tangential,circular,constant,speed,motion,uniform,radially
        !          10904: tangential,circular,si,motion,period,hertz,unit,angular,cycle,speed,uniform,rotational,frequency,units
        !          10905: radius,circular,acceleration,motion,forces,speed,curvature,force
        !          10906: 
        !          10907: tangential,acceleration,tangent,vector,positive,unit,perpendicular,velocity
        !          10908: system,reference,motion,forces,laws,linear,solar,sun,newton,dynamics
        !          10909: vectors,acceleration,reference,vector,motion,angle,position,length,linear,velocity,relative
        !          10910: vectors,reference,vector,motion,position,addition,linear,frame,velocity
        !          10911: 
        !          10912: reference,motion,position,observer,frame
        !          10913: motion,law,addition,relativistic,laws,light,linear,galilean,relativity,lorentz,velocity,transformation
        !          10914: 
        !          10915: invariance,law,addition,galilean,relativity,lorentz,velocity,derivation,transformation
        !          10916: reference,position,law,addition,laws,relativity,lorentz,velocity,derivation,transformation
        !          10917: reference,relativity,lorentz,transformation
        !          10918: law,addition,relativistic,laws,relativity,speed,lorentz,velocity,transformation
        !          10919: 
        !          10920: law,addition,relativistic,galilean,relativity,lorentz,velocity,transformation
        !          10921: time,reference,rest,twin,paradox,length,relativistic,independent,lorentz,dilation,laboratory,frame,contraction
        !          10922: 
        !          10923: paradox,twin
        !          10924: time,paradox,twin,space,lorentz,dilation,frame,velocity,pion,contraction
        !          10925: time,twin,paradox,length,dilation,contraction
        !          10926: length,lorentz,dilation,contraction
        !          10927: time,direction,reference,motion,rest,lab,position,length,law,relativity,lorentz,lifetime,dilation,frame,velocity,contraction
        !          10928: reference,twin,paradox,length,relativistic,relativity,lorentz,dilation,frame,spacetime,contraction
        !          10929: 
        !          10930: trigonometry,angle,line,triangle,surface
        !          10931: masses,sliding,motion,forces,coefficient,law,laws,friction,constant,newtons,force,nonsliding,kinematic
        !          10932: circular,magnitude,center,vectors,components,trajectory,kinematics,number,reference,vector,component,earth,motion,mass,position,unit,law,field,gravitational,independent,particles,newtons,newton,satellite,body,force,dynamics
        !          10933: direction,vectors,components,acceleration,frictional,vector,forces,unit,law,surface,newtons,diagram,force,incline,block,velocity,onebody
        !          10934: slide,gas,direction,vectors,components,acceleration,frictional,vector,angle,negative,coefficient,unit,law,friction,solution,surface,newtons,speed,diagram,slides,force,resistance,tension,incline,weight,block,velocity,onebody,units
        !          10935: normal,tangential,example,acceleration,frictional,positive,forces,kinetic,static,negative,law,friction,inclined,newtons,force,plane,block,velocity
        !          10936: tangential,sliding,frictional,kinetic,static,normal,friction,force,nonsliding
        !          10937: tangential,sliding,friction,hand,rubbing,force,nonsliding
        !          10938: transition,sliding,kinetic,static,coefficient,friction,nonsliding
        !          10939: direction,components,equilibrium,acceleration,component,motion,forces,negative,law,perpendicular,friction,gravity,parallel,surface,constant,newtons,diagram,force,plane,incline,weight,block,velocity
        !          10940: zero,direction,rocket,acceleration,motion,negative,jet,speed
        !          10941: 
        !          10942: trigonometry,components,acceleration,vector,forces,surface,diagram,force,frictionless,tension
        !          10943: radius,circular,acceleration,motion,forces,period,centrifugal,rotating,banking,centripetal,surface,force,velocity,frequency
        !          10944: radius,forces,static,centrifugal,friction,parallel,centripetal,rotation,diagram,body,force,resultant,weight
        !          10945: radius,circular,component,motion,ball,forces,period,static,mass,perpendicular,friction,gravity,parallel,string,centripetal,surface,rotation,speed,diagram,satellite,body,force,frictionless,rotational,tension,weight
        !          10946: circular,acceleration,circle,motion,angle,rotating,banking,centripetal,force
        !          10947: circular,uniform,force
        !          10948: circular,centripetal,acceleration,motion,uniform
        !          10949: acceleration,curves,angle,gravity,of,banking,ideal,due,curve
        !          10950: circular,banked,acceleration,motion,force,weightlessness,perception,due,gravitational,gravity
        !          10951: pendulum,Foucault,Coriolis,centrifugal,station,space,centripetal,force,perception
        !          10952: 
        !          10953: acceleration,angle,centrifugal,banking,centripetal,ideal,force
        !          10954: weight
        !          10955: unit,work,physics,exam,units
        !          10956: 
        !          10957: 
        !          10958: 
        !          10959: exam,units,oscillations
        !          10960: kinematics,relativistic,exam,units
        !          10961: momentum,energy,relativistic,exam,units
        !          10962: motion,harmonic,exam,units
        !          10963: exam,units
        !          10964: body,exam,units
        !          10965: body,exam,units
        !          10966: relativistic,exam,units
        !          10967: unit,vector,exam,calculus
        !          10968: unit,electric,exam
        !          10969: energy,unit,field,electrostatic,exam
        !          10970: energy,unit,exam
        !          10971: waves,light,particle,exam,units
        !          10972: unit,relativistic,exam
        !          10973: unit,exam
        !          10974: unit,newtons,law,exam
        !          10975: conserved,exam,units
        !          10976: unit,exam
        !          10977: unit,exam
        !          10978: exam,units
        !          10979: coulombs,unit,law,exam
        !          10980: experiment,unit,exam
        !          10981: unit,field,force,exam
        !          10982: relativistic,exam,units
        !          10983: relativity,exam,units
        !          10984: momentum,energy,relativistic,exam,units
        !          10985: block,exam,units
        !          10986: unit,field,magnetic,exam
        !          10987: energy,unit,hydrogen,atomic,exam
        !          10988: reflected,color,light,exam,units
        !          10989: unit,fields,force,derivation,exam
        !          10990: motion,unit,field,orbital,force,exam
        !          10991: block,vectors,exam,units
        !          10992: gravitational,circular,exam,units
        !          10993: fields,force,electric,exam,units
        !          10994: motion,electric,potential,exam,units
        !          10995: unit,conserved,exam
        !          10996: unit,exam
        !          10997: unit,exam
        !          10998: unit,charge,potential,exam
        !          10999: exam,units
        !          11000: unit,series,exam
        !          11001: unit,satellite,exam
        !          11002: photons,color,exam,units
        !          11003: unit,series,exam
        !          11004: unit,vectors,exam
        !          11005: unit,exam
        !          11006: motion,unit,body,rotational,exam
        !          11007: unit,exam
        !          11008: motion,energy,unit,potential,exam
        !          11009: capacitors,capacitance,unit,exam
        !          11010: particles,exam,units
        !          11011: unit,exam
        !          11012: unit,particle,exam
        !          11013: forces,magnetic,exam,units
        !          11014: unit,exam
        !          11015: unit,exam
        !          11016: magnetic,exam,units
        !          11017: unit,exam
        !          11018: unit,conduction,exam
        !          11019: unit,refraction,spherical,exam
        !          11020: unit,exam,oscillations
        !          11021: unit,circuits,exam
        !          11022: unit,exam
        !          11023: unit,color,exam
        !          11024: kinematics,exam,units
        !          11025: newtons,circular,law,exam,units
        !          11026: unit,charges,potential,exam
        !          11027: exam,units
        !          11028: amperes,unit,law,exam
        !          11029: unit,exam
        !          11030: photons,atomic,exam,units
        !          11031: strings,heat,unit,diffusion,exam
        !          11032: electrostatics,exam,units
        !          11033: circuits,electric,exam,units
        !          11034: unit,circuits,solution,exam
        !          11035: photoelectric,unit,exam
        !          11036: unit,magnetic,exam
        !          11037: unit,thin,spherical,lenses,exam
        !          11038: unit,exam
        !          11039: unit,mechanical,exam,oscillations
        !          11040: unit,spherical,mirrors,exam
        !          11041: diffraction,unit,exam
        !          11042: motion,unit,exam
        !          11043: motion,unit,circular,kinematics,exam
        !          11044: unit,oscillator,exam
        !          11045: forces,unit,centripetal,exam
        !          11046: law,exam,units
        !          11047: forces,currents,magnetic,exam,units
        !          11048: unit,exam
        !          11049: diffraction,unit,grating,exam
        !          11050: reference,unit,rotating,exam
        !          11051: momentum,energy,electromagnetic,unit,waves,exam
        !          11052: structure,atomic,exam,units
        !          11053: energy,unit,gravitational,potential,exam
        !          11054: unit,exam
        !          11055: unit,doppler,exam
        !          11056: unit,exam,electron
        !          11057: unit,reactions,laws,particle,conservation,exam
        !          11058: unit,waves,interference,exam
        !          11059: unit,waves,exam
        !          11060: unit,force,exam,lorentz
        !          11061: unit,circuits,rc,solution,exam
        !          11062: unit,exam
        !          11063: unit,exam,lorentz
        !          11064: motion,unit,dynamics,laws,particle,exam
        !          11065: unit,exam
        !          11066: capacitance,law,exam,units
        !          11067: diffraction,waves,exam,units
        !          11068: momentum,motion,unit,angular,torque,circular,exam
        !          11069: unit,waves,exam
        !          11070: polarization,unit,law,exam
        !          11071: forces,unit,exam
        !          11072: block,harmonic,exam,units,oscillations
        !          11073: diffraction,waves,exam,units
        !          11074: unit,exam
        !          11075: energy,unit,waves,sound,exam,intensity
        !          11076: capacitors,unit,charge,exam
        !          11077: unit,inductance,magnetic,exam
        !          11078: superposition,unit,waves,exam
        !          11079: amperes,law,exam,units
        !          11080: unit,waves,exam
        !          11081: unit,charge,fields,electric,exam
        !          11082: unit,angular,torque,acceleration,exam
        !          11083: unit,atom,exam
        !          11084: unit,field,gravitational,exam
        !          11085: unit,circuit,exam
        !          11086: unit,magnets,exam
        !          11087: unit,displacement,exam
        !          11088: unit,field,gravitational,spherical,mass,exam
        !          11089: particle,exam,units
        !          11090: unit,exam
        !          11091: unit,laser,exam
        !          11092: unit,entropy,exam
        !          11093: energy,particles,exam,units
        !          11094: induction,unit,magnetic,exam
        !          11095: waves,sound,exam,units
        !          11096: vacuum,unit,field,solution,exam
        !          11097: gas,energy,unit,ideal,temperature,exam
        !          11098: unit,light,exam
        !          11099: unit,exam,oscillations
        !          11100: unit,exam,optical
        !          11101: momentum,unit,angular,torque,vector,exam
        !          11102: unit,relativistic,exam
        !          11103: equilibrium,unit,gravity,force,static,mass,exam
        !          11104: unit,interference,exam
        !          11105: quantum,exam,units
        !          11106: unit,magnetic,exam
        !          11107: unit,exam
        !          11108: motion,circular,exam,units
        !          11109: unit,vectors,exam,calculus
        !          11110: thin,microscope,eye,lenses,exam,units
        !          11111: fields,currents,magnetic,exam
        !          11112: motion,body,exam,units
        !          11113: energy,probability,exam,units
        !          11114: unit,circuit,exam
        !          11115: unit,exam
        !          11116: unit,exam
        !          11117: unit,series,exam
        !          11118: unit,exam
        !          11119: unit,field,electric,exam
        !          11120: unit,probability,wave,exam
        !          11121: unit,friction,exam
        !          11122: unit,derivation,exam,lorentz
        !          11123: unit,derivation,exam,decay
        !          11124: unit,exam
        !          11125: unit,interference,exam
        !          11126: unit,mechanical,exam,oscillations
        !          11127: unit,exam,uncertainty
        !          11128: unit,exam
        !          11129: energy,unit,atomic,exam
        !          11130: unit,exam,spectrum
        !          11131: diffraction,unit,exam
        !          11132: energy,unit,energies,relativistic,exam
        !          11133: energy,unit,dimension,exam
        !          11134: simulation,unit,chain,exam
        !          11135: unit,electricity,exam,magnetism
        !          11136: diffraction,interference,exam,units
        !          11137: forces,unit,fundamental,particle,exam
        !          11138: equilibrium,unit,exam
        !          11139: unit,linear,exam,data
        !          11140: unit,exam
        !          11141: snells,unit,law,light,exam,rays
        !          11142: energy,unit,exam
        !          11143: unit,circuits,exam,optical
        !          11144: unit,law,exam
        !          11145: momentum,decays,unit,relativistic,particle,exam
        !          11146: motion,unit,exam
        !          11147: unit,color,exam
        !          11148: unit,force,exam
        !          11149: motion,unit,dynamics,circular,exam
        !          11150: momentum,unit,conservation,exam
        !          11151: unit,derivation,law,newton,exam
        !          11152: unit,relativistic,exam
        !          11153: unit,oscillator,exam
        !          11154: unit,waves,exam
        !          11155: unit,law,thermodynamics,exam
        !          11156: magnets,exam,units
        !          11157: motion,unit,law,harmonic,exam
        !          11158: circuits,exam,optical,units
        !          11159: unit,vector,exam
        !          11160: unit,exam
        !          11161: gravitational,fields,exam,units
        !          11162: waves,exam,units
        !          11163: unit,mirrors,exam
        !          11164: reference,motion,unit,linear,exam
        !          11165: energy,conservation,exam,units
        !          11166: unit,physics,exam
        !          11167: conduction,exam,units
        !          11168: pattern,unit,interference,exam
        !          11169: unit,molecules,exam
        !          11170: unit,exam
        !          11171: energy,mechanical,exam,units
        !          11172: unit,exam
        !          11173: unit,inertia,exam
        !          11174: unit,exam
        !          11175: momentum,energy,unit,derivation,relativistic,exam
        !          11176: experiment,unit,exam
        !          11177: unit,law,exam
        !          11178: unit,field,force,charges,exam
        !          11179: momentum,newtons,block,laws,exam,units
        !          11180: unit,exam
        !          11181: lenses,mirrors,exam,units
        !          11182: unit,relativity,exam
        !          11183: exam,units
        !          11184: unit,relativity,exam
        !          11185: motion,unit,dynamics,kinematics,harmonic,exam
        !          11186: unit,conductor,exam,velocity
        !          11187: unit,color,physics,exam
        !          11188: unit,color,exam
        !          11189: unit,exam
        !          11190: unit,exam
        !          11191: motion,vectors,exam,units
        !          11192: energy,unit,electrostatic,exam
        !          11193: energy,unit,fields,magnetic,exam
        !          11194: electromagnetic,unit,derivation,wave,exam
        !          11195: line,exam,units
        !          11196: unit,linear,exam,oscillations
        !          11197: energy,work,kinetic,conservation,exam,units
        !          11198: wave,interference,exam,units
        !          11199: motion,components,vector,exam,units
        !          11200: waves,exam,units
        !          11201: fields,electric,static,exam
        !          11202: motion,particles,exam,units
        !          11203: unit,doppler,exam
        !          11204: unit,work,power,exam
        !          11205: unit,length,relativity,exam,dilation,contraction
        !          11206: exam,units
        !          11207: motion,exam
        !          11208: quantum,exam,radioactive,units,decay
        !          11209: motion,energy,work,exam
        !          11210: unit,oscillator,solution,exam
        !          11211: unit,states,exam
        !          11212: energy,unit,conservation,exam
        !          11213: unit,spherical,law,exam
        !          11214: unit,charge,force,electric,exam
        !          11215: unit,atom,exam
        !          11216: unit,mass,exam
        !          11217: field,electric,potential,exam,units
        !          11218: induction,unit,laws,exam
        !          11219: unit,radius,acceleration,exam,velocity
        !          11220: unit,dimension,kinematics,exam
        !          11221: unit,exam
        !          11222: photons,unit,exam
        !          11223: unit,exam,resistance
        !          11224: capacitance,electric,exam,units
        !          11225: unit,electric,exam
        !          11226: unit,field,charge,magnetic,exam
        !          11227: exam,optical,units
        !          11228: unit,particles,exam
        !          11229: unit,exam
        !          11230: forces,fundamental,laws,particle,exam,units
        !          11231: unit,vector,exam
        !          11232: radiation,quantum,exam,units
        !          11233: unit,particle,exam
        !          11234: unit,field,magnetic,exam
        !          11235: unit,kirchhoffs,exam
        !          11236: unit,exam
        !          11237: unit,relativistic,exam
        !          11238: unit,quantum,exam
        !          11239: circuits,resistors,electric,emf,exam,units
        !          11240: reflection,mirrors,exam,units
        !          11241: momentum,unit,angular,exam
        !          11242: forces,fields,magnetic,exam,units
        !          11243: diffraction,exam,units
        !          11244: unit,gravitational,force,exam
        !          11245: unit,telescope,microscope,eye,exam
        !          11246: motion,unit,body,rotational,exam
        !          11247: unit,exam
        !          11248: unit,addition,law,relativity,exam,lorentz,velocity
        !          11249: fields,emf,induced,waves,exam,units
        !          11250: wave,interference,exam,units
        !          11251: momentum,angular,exam,units
        !          11252: unit,colors,exam
        !          11253: atoms,exam,electron,units
        !          11254: unit,exam,lorentz
        !          11255: chemical,unit
        !          11256: forces,unit,fundamental,cross,exam
        !          11257: unit,exam
        !          11258: unit,collisions,exam
        !          11259: unit,magnets,exam
        !          11260: unit,exam,spectrum
        !          11261: unit,exam
        !          11262: unit,torque,force,exam
        !          11263: unit,dynamics,kinematics,exam
        !          11264: unit,expansion,series,exam
        !          11265: unit,exam
        !          11266: unit,exam
        !          11267: unit,static,friction,exam
        !          11268: unit,dynamics,exam
        !          11269: energy,unit,potential,exam
        !          11270: archimedes,unit,exam
        !          11271: unit,mass,exam,weight
        !          11272: unit,exam,plane
        !          11273: unit,exam
        !          11274: unit,exam
        !          11275: motion,forces,unit,derivation,exam
        !          11276: color,exam,units
        !          11277: unit,kinematics,relativistic,exam
        !          11278: unit,relativity,exam
        !          11279: unit,exam,calculus
        !          11280: pendulum,circular,magnitude,direction,vectors,reference,vector,motion,velocities,product,angular,relativistic,rotating,nonrotating,surface,rotation,force,plane,rotational,frame,velocity
        !          11281: products,vectors,acceleration,reference,vector,coriolis,angular,rotating,rotation,cross,force,velocity,derivation
        !          11282: rotation,force,coriolis
        !          11283: rotating,pendulum,currents,air,vectors,acceleration,reference,forces,foucault,velocities,pressure,timedependent
        !          11284: exam
        !          11285: radius,circular,vectors,vector,motion,position,angular,observers,linear,rotating,velocity
        !          11286: second,rotating,parallel,apparent,acceleration,newtons,reference,rotation,forces,force,centrifugal,coriolis,frame,velocity,relativistic,gravity
        !          11287: pendulum,circular,reference,component,period,foucault,coriolis,latitude,plane
        !          11288: direction,center,rotating,currents,surface,rotation,satellite,force,pressure
        !          11289: air,meridian,rotation,earth,winds,force,wind
        !          11290: 
        !          11291: pendulum,center,superposition,vectors,components,trajectory,equilibrium,acceleration,frictional,vector,component,area,forces,kinetic,angle,energy,coefficient,unit,power,perpendicular,gravitational,linear,friction,work,gravity,air,inclined,surface,speed,displacement,elevator,force,tension,incline,block,velocity
        !          11292: orbit,position,sun,satellite
        !          11293: vectors,watt,kinetic,energy,power,work,particle,integral,constant,force
        !          11294: center,forces,energy,work,force,frictionless,velocity
        !          11295: minimum,magnitude,momentum,forces,period,kinetic,displaced,energy,mass,position,coefficient,field,power,gravitational,laws,height,friction,work,gravity,inclined,displacement,force,plane,frictionless,incline,collision,units
        !          11296: forces,kinetic,line,energy,power,work,displacement,force
        !          11297: external,energy,force,power,work
        !          11298: effective,work,constant,joule,done,force,SI
        !          11299: integral,displacement,line,infinitesimal,force,work,variable
        !          11300: motion,position,law,solution,newtons,satellite,velocity
        !          11301: watt,kinetic,energy,unit,power
        !          11302: kinetic,energy,unit,work
        !          11303: relation,kinetic,energy,work
        !          11304: 
        !          11305: second,kinematics,acceleration,frictional,kinetic,energy,coefficient,law,power,gravitational,laws,friction,work,gravity,conservation,particles,newtons,potential
        !          11306: energy,conservative,conservation,potential,force,nonconservative
        !          11307: altitude,energy,work,speed,nonconstant,diagram,force,kinetic,freebody,conservation,constant
        !          11308: masses,heat,motion,forces,molecular,energy,chemical,height,conservative,work,force,electrical,mechanical,kinetic,coefficient,power,friction,conservation,potential,bond
        !          11309: onedimensional,motion,energy,conservation
        !          11310: reference,energy,gravitational,function,point,standard,potential
        !          11311: energy,examples,conservation,potential,incline
        !          11312: frictional,forces,energy,gravitational,conservative,work,force,potential
        !          11313: difference,energy,conservative,non,potential,force,mechanical
        !          11314: energy,conservative,force,mechanical,conservation
        !          11315: 
        !          11316: radius,direction,acceleration,frictional,vector,kinetic,energy,mass,unit,differential,gravitational,height,work,gravity,conservation,potential,displacement,force
        !          11317: energy,force,acceleration,particle,potential,velocity
        !          11318: point,acceleration,kinetic,energy,dimension,potential,force,turning,velocity,mechanical,curve
        !          11319: subatomic,electric,masses,accelerators,forces,energy,field,power,energies,gravitational,fields,atomic,accelerated,conservation,potential,electrostatic,force,accelerating
        !          11320: motion,energy,speed,force,function,turning,point,acceleration,kinetic,particle,potential,velocity
        !          11321: energy,function,turning,point,acceleration,kinetic,potential
        !          11322: energy,conservative,potential,force,function
        !          11323: point,motion,kinetic,energy,diagram,points,turning
        !          11324: Intermediate,Value,energy,Theorem,potential,force
        !          11325: energy,conservation,potential,force
        !          11326: energy,potential,force
        !          11327: energy,conservation,potential,function
        !          11328: 
        !          11329: threedimensional,symmetry,energy,potential,force,spherical
        !          11330: 
        !          11331: motion,energy,particle,potential,diagram,graph,points,turning,curve
        !          11332: 
        !          11333: formal,graphical,graph,numerical
        !          11334: 
        !          11335: point,stable,center,amplitude,equilibrium,oscillation,linear,approximation,constant,potential,force,frequency
        !          11336: equilibrium,earth,motion,orbit,potentials,energy,distance,mass,unit,gravitational,separation,potential,sun,frequency,oscillations
        !          11337: pendulum,atom,frequencies,dipole,center,equilibrium,momentum,vector,earth,motion,charges,orbit,hydrogen,forces,potentials,period,nucleons,energy,distance,protons,position,repulsion,length,ion,nuclear,charge,angular,orbital,cycle,gravitational,height,atomic,neutrons,proton,work,neutron,independent,projectile,gases,particle,dielectric,solid,particles,liquid,constant,potential,speed,sun,ions,atoms,temperature,significant,force,oscillates,electron,electrons,frequency,oscillations,formula,dynamics,nucleus
        !          11338: pendulum,bob,force,constant
        !          11339: graphical,formal,solution,method,numerical
        !          11340: shm,pendulum,equilibrium,motion,oscillation,forces,energy,force,oscillator,position,solution,constant,potential,oscillates,oscillations
        !          11341: point,Motion,center,motion,oscillation,Simple,Harmonic,SHM,simple,harmonic,force,frequency,oscillations,restoring
        !          11342: Equilibrium,equilibrium,reduced,oscillation,PSE,of,Point,Stable,point,stable,mass,small,oscillations
        !          11343: pse
        !          11344: formal,pse,Method,force,Finite,constant,derivative,Difference
        !          11345: 
        !          11346: Equilibrium,oscillation,line,PSE,small,linear,approximation,Point,oscillations,Stable
        !          11347: functions,derivatives,function
        !          11348: 
        !          11349: reference,motion,unit,product,angular,independent,torque,angles,vectors,acceleration,vector,conversion,surface,constant,cross,velocity,frequency,units
        !          11350: circular,acceleration,motion,inertia,angular,perpendicular,moment,linear,torque,newtons,displacement,force,rotational,velocity
        !          11351: acceleration,flywheel,inertia,angular,moment,rotating,force
        !          11352: circular,direction,acceleration,frictional,period,inertia,angular,moment,friction,rotating,torque,constant,rotation,speed,displacement,force,velocity
        !          11353: motion,circular,uniformity,planets
        !          11354: angular,torque,kinematics,acceleration,linear
        !          11355: tangential,circular,acceleration,vector,angular,linear,rigid,rotator,velocity
        !          11356: tangential,acceleration,inertia,moment,rotating,rigid,torque,rotation
        !          11357: kinematics,angular
        !          11358: 
        !          11359: 
        !          11360: error,black,color,length,height,engine,string,image,loop
        !          11361: 
        !          11362: momentum,motion,angular,torque,rotational,circular,vectors,acceleration,kinetic,conserved,linear,conservation,analog,displacement,velocity
        !          11363: electric,difference,mev,acceleration,joules,kinetic,energy,distance,negative,protons,ev,field,power,proton,work,path,volts,potential,speed,electrostatic,external,force,beam,nuclei,electrons,mechanical
        !          11364: tangential,momentum,torques,flywheel,energy,angular,moment,force,acceleration,kinetic,inertia,velocity
        !          11365: circular,acceleration,frictional,momentum,earth,kinetic,energy,inertia,angular,moment,friction,work,torque,constant,gyroscope,plane,rotational,velocity
        !          11366: kinematics,rotational,dynamics
        !          11367: circular,momentum,motion,kinetic,energy,angular,linear,rigid,conservation,torque,particles,rotation,external,body,rotational
        !          11368: circular,momentum,motion,angular,torque,plane
        !          11369: momentum,motion,flywheel,energy,inertia,angular,moment,rigid,torque,rotation,rotational
        !          11370: momentum,flywheel,kinetic,energy,angular,conservation,torque
        !          11371: nonplanar,rigid
        !          11372: 
        !          11373: circular,momentum,motion,energy,inertia,angular,moment,conservation,torque,body,rotational,dynamics
        !          11374: cavendish,experiment,balance,newtons,gravitation
        !          11375: 
        !          11376: momentum,angular
        !          11377: motion,energy,moment,planar,circular,kinetic,inertia,power,uniform,transfer
        !          11378: momentum,skater,energy,angular,moment,turntable,phonograph,mechanical,inertia,rotating,conservation,frequency
        !          11379: normal,trajectory,acceleration,vector,bearing,rate,times,turning
        !          11380: period,skater,energy,angular,moment,motor,phonograph,torque,speed,ice,rotational,mechanical,direction,kinetic,inertia,rotating,conservation,velocity,frequency
        !          11381: momentum,motion,skater,energy,angular,moment,torque,rotational,dynamics,point,circular,vector,kinetic,inertia,law,power,conservation,rotation
        !          11382: momentum,motion,angular,circular,conservation
        !          11383: momentum,angular,moment,rigid,object,point,circular,additive,inertia
        !          11384: spin,momentum,skater,angular,spinning,torque,ice,conservation
        !          11385: flywheel,energy,torque,rotational,kinetic,power,constant,rotation,supplied
        !          11386: direction,acceleration,length,changing
        !          11387: 
        !          11388: circular,magnitude,nonplanar,momentum,vector,motion,velocities,product,angular,conservation,cross
        !          11389: conservation
        !          11390: radius,point,magnitude,direction,reference,vector,position
        !          11391: direction,vector,length,motional,velocity
        !          11392: radius,trajectory,kinematics,acceleration,vector,component,bearing,rate,position,perpendicular,parallel,curvature,turning,velocity
        !          11393: vectors,trajectory,acceleration,vector,io
        !          11394: skaters,direction,trajectory,history,motion,skating,speed,ice,motional
        !          11395: vectors,trajectory,kinematics,acceleration,vector,motion,bearing,angle,skater,position,speed,ice,io,instantaneous,velocity
        !          11396: skaters,direction,trajectory,kinematics,acceleration,vector,motion,length,trajectories,velocity,dynamics
        !          11397: kinematics,dynamics
        !          11398: 
        !          11399: difference,energy,field,conservation,potential,electrostatic,changes
        !          11400: magnitude,vectors,trajectory,acceleration,vector,forces,angle,rate,velocities,angular,speed,velocity
        !          11401: cavendish,Newton,newtons,gravitation,Cavendish
        !          11402: 
        !          11403: sound,string,solid,gas,solution,amplitude,modulus,acceleration,transverse,newtons,speed,harmonic,displacement,stress,force,sinusoidal,medium,youngs,waves,stretched,strain,frequency,wave,wavelength
        !          11404: sound,transverse,exam,velocities,tension,waves,velocity,density
        !          11405: difference,change,definition,small,of,times,delta,properties
        !          11406: sound,string,oscillator,transverse,displacement,area,hydrogen,period,velocities,pressure,tension,length,waves,stretched,velocity,frequency,wave,wavelength,wire,density,work
        !          11407: string,segment,eq,equation,wave
        !          11408: gas,modulus,longitudinal,capacity,elasticity,stress,bulk,eq,pressure,waves,equation,definition,velocity,strain,wave,density
        !          11409: sound,string,gas,heat,modulus,transverse,newtons,capacity,stress,static,temperature,force,pressure,ratio,youngs,waves,strain,wave,density
        !          11410: transverse,waves,wave
        !          11411: transverse,waves,equation,wave
        !          11412: rod,modulus,longitudinal,longitudal,stress,youngs,waves,equation,strain,Young,wave,Hooke
        !          11413: 
        !          11414: modulus,longitudinal,stress,bulk,youngs,waves,wave,compressions,sound,string,transverse,strain
        !          11415: si,magnitude,number,period,digits,unit,product,length,clock,dependent,independent,significant,units
        !          11416: rate,rates,unit
        !          11417: 
        !          11418: front,waves,decibel,power,wave,plane,spherical,intensity,frequency
        !          11419: strings,oscillator,amplitude,energy,sinusoidal,propagate,waves,power,wavelength,sound,string,transverse,speed,tension,intensity,propagating
        !          11420: constructive,coherent,pattern,maximum,free,maxima,net,destructive,wave,disturbance,path,interference,sources,spherical,intensity,central,phase
        !          11421: radius,strings,oscillator,amplitude,db,joules,component,motion,oscillation,period,energy,distance,sinusoidal,waves,stretched,angular,power,wave,wavelength,density,sound,string,particles,transverse,newtons,potential,speed,force,spherical,tension,intensity,frequency,decibels
        !          11422: propagation,energy,propagates,level,elastic,waves,angular,power,wave,sound,intensity,levels,frequency,decibels
        !          11423: energy,elastic,waves,power,wave,sound,plane,spherical,intensity
        !          11424: equilibrium,acoustic,oscillation,energy,elastic,waves,stretched,wave,sound,string,transverse,harmonic,displacement,pressure,medium,intensity
        !          11425: waves,definition,wave,plane,intensity
        !          11426: fronts,waves,wave,spherical
        !          11427: 
        !          11428: front,db,waves,decibel,wave,sound,plane,intensity
        !          11429: Energy,Elastic,Waves,energy,Density,density
        !          11430: Doppler,Light,broadening,red,spectral,light,blueshifted,spectra,Effect,Shift,effect,lines,shift
        !          11431: 
        !          11432: length,height,error,black,color,engine,string,image,loop
        !          11433: error,doppler,sound,hz,frequency
        !          11434: broadening,wavelength,doppler,sound,speed,shift,frequency,relative
        !          11435: error,st,le,black,length,string,gt,err,loop
        !          11436: star,frequencies,doppler,sound,sun,hz,frame,frequency,derivation
        !          11437: source,Doppler,wavelength,doppler,sound,speed,effect,moving,shift,frame,frequency,relative
        !          11438: frequencies,motion,distance,waves,wavelets,wave,wavelength,doppler,train,sound,speed,hz,traveling,medium,frame,velocity,frequency,derivation,formula
        !          11439: motion,wave,doppler,light,sound,effect,frame
        !          11440: motion,velocities,wave,doppler,light,sound,shift,frame,velocity,frequency
        !          11441: equilibrium,motion,acoustic,elastic,wave,doppler,sound,volume,speed,force,medium,restoring
        !          11442: 
        !          11443: energy,broadening,doppler,speed,effect,shift,frequency,relative
        !          11444: 
        !          11445: square,derivation
        !          11446: coherent,minimum,maximum,wave,disturbance,wavelength,wavelengths,intensity
        !          11447: constructive,coherent,frequencies,minimum,pattern,maximum,distance,maxima,waves,destructive,wave,disturbance,wavelength,sound,interference,wavelengths,constant,hz,graph,speakers,intensity,speaker,phase,frequency,amplifier
        !          11448: coherent,minimum,maximum,amplitude,intensities,maxima,waves,wave,rotating,interference,spherical,intensity,phasor,phase
        !          11449: pattern,amplitude,unit,waves,wave,wavelength,interference,sources,phase,frequency
        !          11450: definitions,skills,relations,supplementary,techniques
        !          11451: phasors,amplitude,components,component,oscillation,waves,angular,rotating,interference,plane,phasor,velocity,phase,frequency
        !          11452: pipe,pipes,waves,wave,transverse,longitudal,standing
        !          11453: coordinate,sign,trigonometry,form,base,magnitude,distributive,system,notation,exponent,Cartesian,associative,th,order,angle,line,common,similar,algebraic,cosine,Pythagorean,operations,equation,addition,power,radian,measure,fraction,origin,proportional,triangle,symbol,algebra,intersecting,tangent,simplest,operation,intersect,acute,theorem,scientific,fractions,axes,rad,lines,iv,property,symbols,geometry,commutative,sine,denominator
        !          11454: radius,circular,reference,area,angle,distance,coefficient,length,degree,solution,degrees,powers,algebra,angles,trogonometry,water,frame,geometry
        !          11455: constructive,difference,coherent,minimum,maximum,average,period,intensities,maxima,waves,net,destructive,wave,interference,spherical,intensity,phase,frequency
        !          11456: onedimensional,superposition,amplitude,node,Waves,amplitudes,waves,wave,wavelength,String,Transverse,Standing,nodes,wavelengths,transverse,frequency
        !          11457: coherent,minimum,pattern,maximum,twosource,maxima,waves,wave,wavelength,path,interference,minima,wavelengths,plane,intensity,central,phase
        !          11458: runnung,modes,boundary,conditions,normal,standing,mode
        !          11459: 
        !          11460: constructive,difference,coherent,pattern,maximum,lane,maxima,spectral,waves,destructive,wave,interference,phase
        !          11461: strings,frequencies,maximum,boundary,amplitude,conditions,th,node,position,sinusoidal,harmonics,waves,stretched,wave,wavelength,string,nodes,antinodes,harmonic,standing,displacement,condition,overtone,fundamental,frequency,formula
        !          11462: minimum,average,oscillation,period,intensities,waves,net,wave,disturbance,interference,timeaveraged,timeindependent,intensity
        !          11463: 
        !          11464: reference,angle,line,distance,unit,charge,wavelength,newtons,speed,focal,force,phase,formula,error,direction,vectors,vector,earth,charges,waves,laws,solution,surface,square,sun,image,frequency
        !          11465: magnitude,direction,vectors,components,vector,unit,product,length,addition
        !          11466: vectors
        !          11467: minimum,maximum,line,chain,solution,constant,exam,graph
        !          11468: minimum,maximum,line,maxima,product,chain,graph
        !          11469: differentiation,phenomena,of,integration,quantitative,qualitative,physical,description,derivatives
        !          11470: natural,differentiation,algebraic,value,product,COS,of,properties,logarithmic,ratio,polynomial,function,logarithm,TAN,co,base,limit,a,chain,e,p,x,functions,rule,logarithms,limiting,definition,terms,exponential,table,theorem,sum,inverse,derivatives,SIN,derivative,different,second,trigonometric,procedure,binomial,plotting,ARCTAN,exponentials
        !          11471: sign,minimum,maximum,positive,curves,line,derivativesecond,maxima,equation,of,minima,tangent,function,coordinate,point,zero,slope,graphical,negative,eq,straight,coordinates,derivatives,graph,derivative,second,curve
        !          11472: integrands,part,technique,integrating,independent,limits,of,integral,indefinite,integration,techniques,under,parts,substitution,integrals,integrand,limit,area,definite,for,evaluating,inverse,derivatives,integrated,derivative,integrate,trigonometric,curve,variable
        !          11473: 
        !          11474: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          11475: 
        !          11476: 
        !          11477: length,height,error,black,color,engine,string,image,loop
        !          11478: 
        !          11479: length,height,error,black,color,engine,string,image,loop
        !          11480: 
        !          11481: length,height,error,black,color,engine,string,image,loop
        !          11482: 
        !          11483: length,height,error,black,color,engine,string,image,loop
        !          11484: 
        !          11485: length,height,error,black,color,engine,string,image,loop
        !          11486: 
        !          11487: period,length,height,error,black,color,engine,string,image,loop
        !          11488: 
        !          11489: period,length,height,error,black,color,engine,string,image,loop
        !          11490: 
        !          11491: length,height,error,black,color,engine,string,image,loop
        !          11492: 
        !          11493: period,length,height,error,black,color,engine,string,image,loop
        !          11494: length,height,error,black,color,engine,string,image,loop
        !          11495: 
        !          11496: period,length,height,error,black,color,engine,string,image,loop
        !          11497: length,height,error,black,color,engine,string,image,loop
        !          11498: 
        !          11499: period,length,height,error,black,color,engine,string,image,loop
        !          11500: 
        !          11501: length,height,error,black,color,engine,string,image,loop
        !          11502: 
        !          11503: 
        !          11504: length,height,error,black,color,engine,string,image,loop
        !          11505: 
        !          11506: length,height,error,black,color,engine,string,image,loop
        !          11507: 
        !          11508: length,height,error,black,color,engine,string,image,loop
        !          11509: 
        !          11510: 
        !          11511: length,height,error,black,color,engine,string,image,loop
        !          11512: 
        !          11513: length,height,error,db,black,color,engine,string,image,loop
        !          11514: 
        !          11515: period,length,height,error,black,color,engine,string,image,loop
        !          11516: 
        !          11517: 
        !          11518: length,height,error,black,color,engine,string,image,loop
        !          11519: 
        !          11520: length,height,error,black,color,engine,string,image,loop
        !          11521: 
        !          11522: period,length,height,error,black,color,engine,string,image,loop
        !          11523: 
        !          11524: length,height,error,black,color,engine,string,image,loop
        !          11525: 
        !          11526: length,height,error,black,color,engine,string,image,loop
        !          11527: 
        !          11528: length,height,error,black,color,engine,string,image,loop
        !          11529: 
        !          11530: length,height,error,black,color,engine,string,image,loop
        !          11531: 
        !          11532: length,height,error,black,color,engine,string,image,loop
        !          11533: 
        !          11534: length,height,error,black,color,engine,string,image,loop
        !          11535: 
        !          11536: length,height,error,black,color,engine,string,image,loop
        !          11537: 
        !          11538: length,height,error,black,color,engine,string,image,loop
        !          11539: 
        !          11540: 
        !          11541: length,error,black,string,loop
        !          11542: le,length,ne,height,ring,error,st,black,color,ge,engine,string,gt,image,loop
        !          11543: connected,forces,of,newtons,diagram,force,axes,frictionless,diagrams,application,components,vector,s,mass,law,Newton,massless,sum,second,onebody,bodies
        !          11544: forces
        !          11545: 
        !          11546: length,error,black,string,loop
        !          11547: 
        !          11548: length,height,error,black,color,string,image,loop
        !          11549: 
        !          11550: length,height,error,black,color,engine,string,image,loop
        !          11551: 
        !          11552: length,height,error,black,color,engine,string,image,loop
        !          11553: 
        !          11554: length,height,error,black,color,engine,string,image,loop
        !          11555: 
        !          11556: length,height,error,black,color,engine,string,image,loop
        !          11557: 
        !          11558: length,height,error,black,color,engine,string,image,loop
        !          11559: 
        !          11560: length,height,error,black,color,engine,string,image,loop
        !          11561: 
        !          11562: length,height,error,black,color,engine,string,image,loop
        !          11563: 
        !          11564: length,height,error,black,color,engine,string,image,loop
        !          11565: 
        !          11566: length,height,error,black,color,engine,string,image,loop
        !          11567: 
        !          11568: length,height,error,black,color,engine,string,image,loop
        !          11569: 
        !          11570: length,height,error,black,color,engine,string,image,loop
        !          11571: 
        !          11572: period,length,height,error,black,color,engine,string,image,loop
        !          11573: 
        !          11574: length,height,error,black,color,engine,string,image,loop
        !          11575: 
        !          11576: length,height,error,black,color,engine,string,image,loop
        !          11577: 
        !          11578: 
        !          11579: length,height,error,black,color,engine,string,image,loop
        !          11580: period,solution,specific,physics
        !          11581: 
        !          11582: error,black,color,length,height,engine,string,image,loop
        !          11583: 
        !          11584: error,black,color,length,height,engine,string,image,loop
        !          11585: 
        !          11586: error,black,color,length,height,engine,string,image,loop
        !          11587: 
        !          11588: error,black,color,length,height,engine,string,image,loop
        !          11589: 
        !          11590: error,black,color,length,height,engine,string,image,loop
        !          11591: 
        !          11592: error,black,color,length,height,engine,string,image,loop
        !          11593: 
        !          11594: error,black,color,length,height,engine,string,image,loop
        !          11595: 
        !          11596: error,black,color,length,height,engine,string,image,loop
        !          11597: 
        !          11598: error,black,color,length,height,engine,string,image,loop
        !          11599: 
        !          11600: error,black,color,length,height,engine,string,image,loop
        !          11601: 
        !          11602: error,black,color,length,height,engine,string,image,loop
        !          11603: 
        !          11604: error,black,color,length,height,engine,string,image,loop
        !          11605: 
        !          11606: error,black,color,length,height,engine,string,image,loop
        !          11607: 
        !          11608: error,black,color,length,height,engine,string,image,loop
        !          11609: 
        !          11610: error,black,color,length,height,engine,string,image,loop
        !          11611: 
        !          11612: error,black,color,length,height,engine,string,image,loop
        !          11613: 
        !          11614: error,black,color,length,height,engine,string,image,loop
        !          11615: 
        !          11616: error,black,color,length,height,engine,string,image,loop
        !          11617: 
        !          11618: 
        !          11619: error,black,color,length,height,string,image,loop
        !          11620: 
        !          11621: error,black,color,length,height,engine,string,image,loop
        !          11622: 
        !          11623: error,black,color,length,height,engine,string,image,loop
        !          11624: 
        !          11625: error,black,color,length,height,engine,string,image,loop
        !          11626: 
        !          11627: error,black,color,length,height,engine,string,image,loop
        !          11628: 
        !          11629: error,black,color,length,height,engine,string,image,loop
        !          11630: 
        !          11631: error,black,length,string,loop
        !          11632: 
        !          11633: length,height,error,black,color,engine,string,image,loop
        !          11634: 
        !          11635: error,black,length,string,sun,loop
        !          11636: 
        !          11637: 
        !          11638: error,black,color,length,height,string,image,loop
        !          11639: 
        !          11640: error,black,color,length,height,engine,string,image,loop
        !          11641: 
        !          11642: error,black,color,length,height,engine,string,image,loop
        !          11643: 
        !          11644: error,black,color,length,height,engine,string,image,loop
        !          11645: 
        !          11646: error,black,color,length,height,engine,string,image,loop
        !          11647: 
        !          11648: error,black,color,length,height,engine,string,image,loop
        !          11649: 
        !          11650: error,black,color,length,height,engine,string,image,loop
        !          11651: 
        !          11652: error,black,color,length,height,engine,string,image,loop
        !          11653: 
        !          11654: error,black,color,length,height,engine,string,image,loop
        !          11655: 
        !          11656: error,black,color,length,height,engine,string,image,loop
        !          11657: 
        !          11658: error,black,color,length,height,engine,string,image,loop
        !          11659: 
        !          11660: error,black,color,length,height,engine,string,image,loop
        !          11661: 
        !          11662: error,black,color,length,height,engine,string,image,loop
        !          11663: 
        !          11664: error,period,black,color,length,height,engine,string,image,loop
        !          11665: 
        !          11666: error,black,color,length,height,engine,string,image,loop
        !          11667: 
        !          11668: error,black,color,length,height,engine,string,image,loop
        !          11669: 
        !          11670: error,black,color,length,height,engine,string,image,loop
        !          11671: 
        !          11672: error,black,color,length,height,engine,string,image,loop
        !          11673: 
        !          11674: error,black,color,length,height,engine,string,image,loop
        !          11675: 
        !          11676: exam,physics
        !          11677: work,position,law,laws,exam,coulombs,number,newtons,practice,physics
        !          11678: work,position,laws,exam,number,practice,physics
        !          11679: number,lines,derivation,flow,vectors,vector,digits,solution,physics,significant,units
        !          11680: physics,exam
        !          11681: exam,physics
        !          11682: exam,physics
        !          11683: charge,field,fields,area,physics
        !          11684: minimum,frictional,work,friction,constant,line,gravity,force,structure,physics
        !          11685: number,forces,work,degrees,ray,direction,vectors,digits,lens,velocities,light,air,solution,practice,physics,units,glass
        !          11686: law,laws,light,solution,exam,ohms,physics,frequency
        !          11687: maximum,period,unit,addition,work,independent,physics,exam,block,units
        !          11688: work,speed,error,physics
        !          11689: physics
        !          11690: physics
        !          11691: 
        !          11692: 
        !          11693: length,error,color,engine,string,height,black,image,loop
        !          11694: 
        !          11695: length,error,black,string,loop
        !          11696: 
        !          11697: 
        !          11698: 
        !          11699: 
        !          11700: 
        !          11701: 
        !          11702: 
        !          11703: 
        !          11704: 
        !          11705: physics
        !          11706: 
        !          11707: center,number,chemical,product,co,laser,lab,power,processes,physics,plant
        !          11708: 
        !          11709: 
        !          11710: structure,physics
        !          11711: 
        !          11712: fields,efficiency,physics
        !          11713: data
        !          11714: physics
        !          11715: 
        !          11716: 
        !          11717: co
        !          11718: 
        !          11719: 
        !          11720: 
        !          11721: 
        !          11722: 
        !          11723: 
        !          11724: 
        !          11725: 
        !          11726: 
        !          11727: 
        !          11728: 
        !          11729: length,error,black,string,loop
        !          11730: 
        !          11731: length,error,black,string,loop
        !          11732: 
        !          11733: 
        !          11734: 
        !          11735: number,spring,exam,units
        !          11736: reference,work,free,lab,units
        !          11737: 
        !          11738: pattern,experiment,equilibrium,diffraction,reference,momentum,motion,forces,energy,archimedes,decays,unit,length,field,angular,addition,orbital,energies,gravitational,expansion,doppler,fields,work,gravity,dimension,torque,transverse,newtons,satellite,body,force,spherical,rotational,series,block,derivation,dynamics,collisions,mechanical,radius,circular,oscillator,vectors,kinematics,acceleration,vector,static,inertia,mass,law,waves,power,wave,relativistic,linear,friction,rotating,sound,entropy,spring,particle,string,interference,conservation,centripetal,solution,relativity,potential,physics,thermodynamics,exam,lorentz,plane,dilation,intensity,weight,velocity,units,oscillations,data,contraction
        !          11739: 
        !          11740: 
        !          11741: unit,block,color,units
        !          11742: masses,pipe,frequencies,gas,maximum,superposition,trajectory,number,reference,momentum,motion,forces,period,angle,line,energy,maxima,unit,product,length,field,youngs,stretched,net,angular,moment,cycle,wavelength,height,work,dimension,solid,ideal,transverse,newtons,speed,diagram,force,spherical,tension,instantaneous,fundamental,strain,phase,kinematic,dynamics,instant,rt,radius,circular,magnitude,direction,amplitude,vectors,components,kinematics,modulus,acceleration,vector,component,area,average,watt,stress,kinetic,inertia,mass,position,sinusoidal,coefficient,law,harmonics,waves,power,perpendicular,wave,organ,laws,linear,friction,sound,spring,particle,string,gs,pulley,conservation,centripetal,solution,graphs,particles,surface,constant,rotation,potential,harmonic,displacement,plane,graph,medium,velocity,frequency
        !          11743: frequencies,gas,maximum,center,equilibrium,reference,oscillators,motion,ball,forces,period,length,angular,moment,energies,gravitational,expansion,proton,work,independent,solid,equivalent,ideal,balance,diagram,resonance,satellite,states,series,frame,instantaneous,derivation,flow,collisions,thermal,oscillator,magnitude,direction,free,amplitude,components,acceleration,vector,average,kinetic,static,mass,position,law,kelvin,conserved,power,wave,reversible,laws,light,friction,density,reservoir,particle,volume,interference,solution,constant,relativity,sun,resistance,graph,dilation,intensity,units,oscillations,isothermal,contraction,decay,constructive,pendulum,masses,pattern,polar,experiment,heat,trajectory,number,momentum,liquids,oscillation,angle,line,energy,archimedes,decays,maxima,unit,field,net,addition,cycle,destructive,fields,gravity,parallel,gases,torque,newtons,speed,adiabatic,molecules,temperature,body,force,pressure,spherical,lines,rotational,phase,formula,dynamics,mechanical,radius,vectors,specific,kinematics,component,earth,fluid,einstein,inertia,velocities,rotates,waves,reactions,relativistic,isolated,processes,linear,rotating,entropy,spring,separation,conservation,air,graphs,particles,surface,capacity,potential,rotation,square,harmonic,displacement,spheres,external,thermodynamics,lorentz,plane,electron,weight,collision,velocity,frequency,process
        !          11744: number,unit,physics,exam,weight,units
        !          11745: spring,exam
        !          11746: period,addition,spring,exam
        !          11747: second,magnitude,direction,acceleration,vector,motion,angle,mass,unit,law,addition,laws,constant,newtons,force,velocity,kinematic
        !          11748: components,acceleration,motion,forces,laws,newtons,newton,plane,kinematic
        !          11749: kinematics,acceleration,force,weight
        !          11750: series,spring,physics
        !          11751: magnitude,components,acceleration,distance,mass,light,spring,force,weight,velocity
        !          11752: si,superposition,acceleration,motion,mass,law,laws,friction,particle,newtons,velocity,units
        !          11753: s,motion,law,laws,of,Newton
        !          11754: system,sliding,acceleration,reference,motion,law,laws,friction,gravity,Newton,first
        !          11755: superposition,principle,acceleration,motion,forces,mass,law,sigma,Newton,force,weigh,second,weight,summation,related
        !          11756: example,reaction,motion,law,spring,Newton,recoil,action,third
        !          11757: gram,system,centimeter,meter,unit,kilogram,force,seconds,units
        !          11758: applications,object,constant,elevator,force,weight,velocity,accelerating
        !          11759: 
        !          11760: Newtons,second,masses,direction,vectors,components,momentum,vector,area,average,forces,negative,mass,unit,law,conserved,addition,particle,conservation,particles,constant,newtons,speed,force,weight,collision,differentiating
        !          11761: si,vectors,momentum,motion,forces,kinetic,energy,mass,isolated,laws,particle,conservation,particles,constant,newtons,force,collision,velocity,units,dynamics
        !          11762: acceleration,momentum,mass,speed,force,weight,collision,velocity
        !          11763: number,equivalent,spring,exam,units
        !          11764: masses,trigonometry,si,magnitude,direction,vectors,components,acceleration,momentum,vector,component,motion,ball,average,forces,angle,distance,mass,position,velocities,unit,law,conserved,perpendicular,isolated,laws,work,parallel,particle,conservation,degrees,particles,surface,constant,newtons,speed,diagram,external,body,force,ice,frictionless,ratio,weight,collision,velocity,units
        !          11765: sliding,kinetic,coefficient,friction,velocity
        !          11766: momentum,vector,mass,conserved,isolated,laws,principles,conservation,constant,newtons,force,collision
        !          11767: principle,momentum,mass,law,laws,conservation,Newton
        !          11768: momentum,motion,forces,energy,unit,work,transverse,newtons,dynamics,mechanical,circular,vectors,kinematics,position,law,waves,wave,laws,friction,sound,string,harmonic,exam,weight,units
        !          11769: momentum,motion,law,isolated,linear,particle,conservation,Newton,constant,second
        !          11770: principle,momentum,ball,impulse,force,collision,related
        !          11771: system,momentum,two,isolated,particle,conservation,particles,for,force,collision
        !          11772: 
        !          11773: vector,average,integral,averaging,function
        !          11774: 
        !          11775: 
        !          11776: 
        !          11777: momentum,motion,energy,newtons,dynamics,kinetic,particle,conservation
        !          11778: boat,train,recoil,recoils
        !          11779: unit,block,color,units
        !          11780: momentum,energy,bird
        !          11781: momentum,speed,earth,skateboard
        !          11782: clouds,winds,tides,dynamics,nature,waves,particle,hockey
        !          11783: 
        !          11784: momentum,energy,newtons,dynamics,kinetic,mass,law,conserved,laws,particle,conservation,recoils
        !          11785: clouds,winds,tides,dynamics,nature,waves,particle,hockey
        !          11786: total,system,trajectory,momentum,energy,of,mechanical,kinetic,mass,law,isolated,particle,conservation,particles,potential
        !          11787: system,reference,motion,energy,net,mechanics,relationship,of,first,Newtonian,force,third,dynamics,kinetic,classical,law,laws,Newton,second
        !          11788: 
        !          11789: 
        !          11790: unit,work,physics,exam,units
        !          11791: 
        !          11792: le,period,length,ne,height,ring,error,st,black,color,ge,engine,string,gt,image,loop
        !          11793: gas,experiment,equilibrium,reference,momentum,motion,forces,energy,decays,unit,length,field,angular,addition,orbital,energies,gravitational,doppler,fields,work,gravity,dimension,ideal,torque,transverse,newtons,satellite,temperature,body,force,pressure,spherical,rotational,phase,derivation,dynamics,collisions,mechanical,radius,circular,oscillator,vectors,kinematics,acceleration,vector,fluid,earth,kinetic,static,inertia,mass,law,waves,reactions,power,wave,relativistic,laws,linear,friction,rotating,sound,entropy,spring,particle,string,interference,conservation,graphs,surface,relativity,potential,square,harmonic,spheres,physics,thermodynamics,lorentz,plane,dilation,intensity,velocity,oscillations,contraction
        !          11794: unit,block,spring,exam,weight,units
        !          11795: length,height,error,black,color,engine,string,image,loop
        !          11796: 
        !          11797: number,reference,specific,spring,practice,exam
        !          11798: length,height,error,black,color,engine,string,image,loop
        !          11799: 
        !          11800: gas,pattern,experiment,equilibrium,diffraction,reference,momentum,motion,forces,energy,archimedes,decays,unit,length,field,angular,addition,orbital,energies,gravitational,expansion,doppler,fields,work,gravity,dimension,ideal,torque,transverse,newtons,satellite,temperature,body,force,spherical,rotational,series,block,derivation,dynamics,collisions,mechanical,radius,circular,oscillator,vectors,kinematics,acceleration,vector,static,inertia,mass,law,waves,power,wave,relativistic,laws,linear,friction,rotating,sound,entropy,spring,particle,string,interference,conservation,centripetal,solution,relativity,potential,harmonic,physics,thermodynamics,exam,lorentz,plane,dilation,intensity,weight,velocity,oscillations,data,contraction
        !          11801: number,spring,exam,units
        !          11802: gas,experiment,equilibrium,reference,momentum,motion,forces,energy,decays,unit,length,field,angular,addition,orbital,energies,gravitational,doppler,fields,gravity,dimension,ideal,torque,newtons,satellite,temperature,body,force,pressure,spherical,rotational,derivation,dynamics,collisions,mechanical,circular,oscillator,kinematics,acceleration,vector,fluid,earth,static,inertia,mass,law,waves,reactions,wave,relativistic,linear,friction,rotating,sound,entropy,spring,particle,interference,surface,relativity,potential,square,spheres,thermodynamics,lorentz,plane,dilation,intensity,velocity,oscillations,contraction
        !          11803: shm,masses,sign,gas,maximum,trajectory,equilibrium,number,reference,momentum,motion,forces,period,angle,line,energy,distance,maxima,unit,product,length,field,youngs,stretched,net,angular,addition,cycle,wavelength,dependent,height,work,dimension,independent,solid,ideal,transverse,newtons,speed,diagram,angles,force,spherical,frame,instantaneous,strain,phase,br,kinematic,dynamics,instant,rt,radius,circular,si,oscillator,magnitude,direction,amplitude,vectors,specific,components,kinematics,modulus,acceleration,vector,component,area,average,watt,stress,digits,kinetic,mass,position,sinusoidal,coefficient,law,waves,power,wave,isolated,laws,linear,friction,sound,spring,particle,string,gs,pulley,conservation,centripetal,solution,graphs,particles,surface,constant,potential,harmonic,displacement,newton,significant,plane,graph,medium,collision,velocity,frequency,units,data
        !          11804: pipe,frequencies,gas,minimum,maximum,center,superposition,equilibrium,reference,oscillators,motion,ball,forces,period,distance,length,youngs,angular,orbital,moment,energies,wavelength,gravitational,expansion,proton,work,independent,solid,equivalent,ideal,balance,diagram,resonance,satellite,states,tension,series,frame,instantaneous,fundamental,derivation,flow,collisions,thermal,circular,oscillator,magnitude,direction,free,amplitude,components,acceleration,vector,average,stress,kinetic,static,mass,position,sinusoidal,law,harmonics,elastic,kelvin,conserved,power,wave,reversible,organ,laws,light,friction,density,reservoir,particle,string,volume,interference,centripetal,solution,constant,relativity,sun,resistance,graph,dilation,medium,intensity,units,oscillations,isothermal,data,contraction,decay,constructive,pendulum,masses,polar,pattern,experiment,heat,trajectory,number,momentum,liquids,oscillation,angle,line,energy,archimedes,decays,maxima,unit,field,stretched,net,addition,cycle,destructive,doppler,fields,dimension,gravity,parallel,gases,torque,transverse,newtons,speed,adiabatic,molecules,temperature,body,force,pressure,spherical,lines,rotational,strain,phase,formula,dynamics,mechanical,radius,vectors,specific,kinematics,modulus,component,earth,fluid,area,einstein,inertia,velocities,rotates,waves,reactions,perpendicular,relativistic,isolated,processes,linear,rotating,sound,entropy,spring,separation,conservation,air,graphs,particles,surface,capacity,rotation,potential,square,harmonic,displacement,spheres,external,thermodynamics,lorentz,plane,electron,weight,collision,velocity,frequency,process
        !          11805: number,unit,phy,physics,exam,weight,units
        !          11806: 
        !          11807: 
        !          11808: spring,exam
        !          11809: period,addition,spring,exam
        !          11810: vectors,motion
        !          11811: study,mathematical,practice
        !          11812: 
        !          11813: magnitude,number,angle,power,angles,physics
        !          11814: radius,trigonometry,magnitude,number,notation,reference,earth,area,angle,line,product,length,power,perpendicular,radian,degree,digit,solution,equivalent,degrees,surface,angles,rad,ratio,radians,triangles,series,geometry,units,formula,process
        !          11815: radius,trigonometry,form,addition,degree,degrees,algebra,decimal,series,geometry,formula
        !          11816: trigonometry
        !          11817: 
        !          11818: period,length,height,error,black,color,engine,string,image,loop
        !          11819: 
        !          11820: period,length,height,error,black,color,engine,string,image,loop
        !          11821: 
        !          11822: length,height,error,black,color,engine,string,image,loop
        !          11823: 
        !          11824: length,error,color,engine,string,height,black,image,loop
        !          11825: length,height,error,black,color,engine,string,image,loop
        !          11826: 
        !          11827: length,height,error,black,color,engine,string,image,loop
        !          11828: 
        !          11829: length,error,color,engine,string,height,black,image,loop
        !          11830: 
        !          11831: length,error,color,engine,string,height,black,image,loop
        !          11832: period,length,height,error,black,color,engine,string,image,loop
        !          11833: 
        !          11834: 
        !          11835: 
        !          11836: error,black,color,length,height,engine,string,image,loop
        !          11837: 
        !          11838: 
        !          11839: 
        !          11840: error,black,color,length,height,engine,string,image,loop
        !          11841: 
        !          11842: error,black,color,length,height,engine,string,image,loop
        !          11843: length,error,color,engine,string,height,black,image,loop
        !          11844: error,black,color,length,height,engine,string,image,loop
        !          11845: 
        !          11846: error,black,color,length,height,engine,string,image,loop
        !          11847: 
        !          11848: length,error,color,engine,string,height,black,image,loop
        !          11849: error,period,black,color,length,height,engine,string,image,loop
        !          11850: error,black,color,length,height,engine,string,image,loop
        !          11851: length,height,error,black,color,engine,string,image,loop
        !          11852: 
        !          11853: 
        !          11854: error,period,black,color,length,height,engine,string,image,loop
        !          11855: length,error,color,engine,string,height,black,image,loop
        !          11856: error,period,black,color,length,height,engine,string,image,loop
        !          11857: length,error,color,engine,string,height,black,image,loop
        !          11858: 
        !          11859: 
        !          11860: error,period,black,color,length,height,engine,string,image,loop
        !          11861: 
        !          11862: 
        !          11863: 
        !          11864: 
        !          11865: 
        !          11866: length,error,color,engine,string,height,black,image,loop
        !          11867: period,length,error,color,engine,string,height,black,image,loop
        !          11868: 
        !          11869: length,height,error,black,color,engine,string,image,loop
        !          11870: period,length,height,error,black,color,engine,string,image,loop
        !          11871: error,black,color,length,height,engine,string,image,loop
        !          11872: 
        !          11873: 
        !          11874: 
        !          11875: error,period,black,color,length,height,engine,string,image,loop
        !          11876: length,height,error,black,color,engine,string,image,loop
        !          11877: length,height,error,black,color,engine,string,image,loop
        !          11878: 
        !          11879: 
        !          11880: period,length,error,color,engine,string,height,black,image,loop
        !          11881: length,height,error,black,color,engine,string,image,loop
        !          11882: 
        !          11883: 
        !          11884: period,length,error,color,engine,string,height,black,image,loop
        !          11885: 
        !          11886: period,length,error,color,engine,string,height,black,image,loop
        !          11887: error,black,color,length,height,engine,string,image,loop
        !          11888: 
        !          11889: 
        !          11890: 
        !          11891: 
        !          11892: error,black,color,length,height,engine,string,image,loop
        !          11893: error,period,black,color,length,height,engine,string,image,loop
        !          11894: 
        !          11895: error,period,black,color,length,height,engine,string,image,loop
        !          11896: 
        !          11897: 
        !          11898: 
        !          11899: error,period,black,color,length,height,engine,string,image,loop
        !          11900: error,period,black,color,length,height,engine,string,image,loop
        !          11901: length,height,error,black,color,engine,string,image,loop
        !          11902: length,error,color,engine,string,height,black,image,loop
        !          11903: error,black,color,length,height,engine,string,image,loop
        !          11904: 
        !          11905: 
        !          11906: 
        !          11907: 
        !          11908: 
        !          11909: 
        !          11910: error,black,color,length,height,engine,string,image,loop
        !          11911: 
        !          11912: 
        !          11913: length,height,error,black,color,engine,string,image,loop
        !          11914: 
        !          11915: period,length,height,error,black,color,engine,string,image,loop
        !          11916: 
        !          11917: period,length,error,color,engine,string,height,black,image,loop
        !          11918: 
        !          11919: period,length,height,error,black,color,engine,string,image,loop
        !          11920: length,error,color,engine,string,height,black,image,loop
        !          11921: 
        !          11922: error,period,black,color,length,height,engine,string,image,loop
        !          11923: 
        !          11924: 
        !          11925: length,error,color,engine,string,height,black,image,loop
        !          11926: period,length,height,error,black,color,engine,string,image,loop
        !          11927: 
        !          11928: error,black,color,length,height,engine,string,image,loop
        !          11929: 
        !          11930: error,period,black,color,length,height,engine,string,image,loop
        !          11931: 
        !          11932: period,length,height,error,black,color,engine,string,image,loop
        !          11933: 
        !          11934: period,length,error,color,engine,string,height,black,image,loop
        !          11935: 
        !          11936: period,length,error,color,engine,string,height,black,image,loop
        !          11937: length,height,error,black,color,engine,string,image,loop
        !          11938: 
        !          11939: length,height,error,black,color,engine,string,image,loop
        !          11940: minimum,length,relativity,quantum,units
        !          11941: operational,time,length,comparison,measurement,quantity,description,property,procedure
        !          11942: magnitude,unit,constant,significant,graph,units
        !          11943: atom,standard,line,meter,length,definition,measure,measurement,rod,bar
        !          11944: event,time,standard,earth,period,day,definition,clock,measure,atomic,measurement,simultaneous,second,events
        !          11945: quantities,si,system,number,time,standard,consistency,algebraic,pure,meter,unit,length,definition,basic,independent,of,symbol,sec,conversion,algebra,condition,second,SI,standards,symbols,units
        !          11946: total,probable,of,places,decimal,off,specification,random,round,error,figures,fractional,systematic,significant,relative
        !          11947: relation,magnitude,estimate,value,relationships,magnitudes,dependent,independent,relationship,functional,of,quantity,function,relative,variable
        !          11948: number,period,unit,length,si,magnitude,significant,units
        !          11949: magnitude,number,fluid,area,distance,sound,volume,speed,units
        !          11950: si,fluid,area,distance,unit,length,speed,units
        !          11951: si,magnitude,number,area,digits,unit,power,work,volume,significant,units
        !          11952: length,units
        !          11953: 
        !          11954: error,black,color,length,height,string,image,loop
        !          11955: 
        !          11956: 
        !          11957: 
        !          11958: length,height,error,black,color,engine,string,image,loop
        !          11959: length,height,error,black,color,engine,string,image,loop
        !          11960: 
        !          11961: length,height,error,black,color,engine,string,image,loop
        !          11962: 
        !          11963: length,height,error,black,color,engine,string,image,loop
        !          11964: 
        !          11965: 
        !          11966: error,black,color,length,height,engine,string,image,loop
        !          11967: error,black,color,length,height,engine,string,image,loop
        !          11968: 
        !          11969: period,length,error,color,engine,string,height,black,image,loop
        !          11970: length,height,error,black,color,engine,string,image,loop
        !          11971: 
        !          11972: 
        !          11973: error,black,color,length,height,engine,string,image,loop
        !          11974: motion,energy,unit,gravitational,body,dynamics,circular,waves,sound,exam,intensity,weight,units
        !          11975: number,equivalent,spring,exam,units
        !          11976: series,spring,physics
        !          11977: 
        !          11978: gas,experiment,equilibrium,reference,momentum,motion,forces,energy,decays,unit,length,field,angular,addition,energies,gravitational,fields,gravity,ideal,torque,satellite,temperature,body,force,pressure,spherical,rotational,derivation,dynamics,collisions,mechanical,oscillator,kinematics,vector,fluid,earth,static,inertia,mass,law,waves,reactions,wave,relativistic,linear,friction,rotating,entropy,spring,particle,interference,surface,relativity,potential,square,spheres,physics,thermodynamics,lorentz,plane,dilation,velocity,oscillations,contraction
        !          11979: unit,work,physics,exam,units
        !          11980: unit,block,spring,exam,weight,units
        !          11981: compare,sign,interpretation,magnitude,slope,graphical,to,line,rate,infinitesimal,change,definition,compared,vs,of,infinite,mathematical,precision,scientific,graph,derivative,function,relative
        !          11982: form,slope,growth,formulas,rate,change,of,for,properties,derivative,polynomial,function,formula
        !          11983: coordinate,used,total,average,to,rate,position,uniformly,change,definition,from,small,of,constant,displacement,changing,enough,function,velocity,find
        !          11984: motion,average,period,line,constant,graph,velocity,formula
        !          11985: exponential,function
        !          11986: gas,positive,motion,distance,unit,speed,temperature,ice,graph,water,velocity,units
        !          11987: radiation,number,positive,cells,motion,ball,distance,negative,carbon,unit,length,work,photosynthesis,volume,air,solution,graphs,particles,surface,constant,atoms,molecules,temperature,body,plane,graph,radioactive,velocity,formula,decay
        !          11988: calculus
        !          11989: magnitude,number,positive,average,line,distance,negative,position,carbon,velocities,unit,focus,work,graphs,constant,practice,graph,ratio,weight,velocity,units
        !          11990: 
        !          11991: error,black,color,length,height,engine,string,image,loop
        !          11992: 
        !          11993: error,black,color,length,height,engine,string,image,loop
        !          11994: 
        !          11995: 
        !          11996: 
        !          11997: error,black,color,length,height,engine,string,image,loop
        !          11998: error,black,color,length,height,engine,string,image,loop
        !          11999: error,black,color,length,height,engine,string,image,loop
        !          12000: 
        !          12001: error,black,color,length,height,engine,string,image,loop
        !          12002: 
        !          12003: 
        !          12004: error,black,color,length,height,engine,string,image,loop
        !          12005: error,black,color,length,height,engine,string,image,loop
        !          12006: 
        !          12007: error,black,color,length,height,engine,string,image,loop
        !          12008: 
        !          12009: error,black,color,length,height,engine,string,image,loop
        !          12010: 
        !          12011: error,black,color,length,height,engine,string,image,loop
        !          12012: error,black,color,length,height,engine,string,image,loop
        !          12013: 
        !          12014: 
        !          12015: error,period,black,color,length,height,engine,string,image,loop
        !          12016: 
        !          12017: error,black,color,length,height,engine,string,image,loop
        !          12018: error,period,black,color,length,height,engine,string,image,loop
        !          12019: 
        !          12020: 
        !          12021: 
        !          12022: error,period,black,color,length,height,engine,string,image,loop
        !          12023: 
        !          12024: error,period,black,color,length,height,engine,string,image,loop
        !          12025: error,black,color,length,height,engine,string,image,loop
        !          12026: 
        !          12027: 
        !          12028: error,black,color,length,height,engine,string,image,loop
        !          12029: error,black,color,length,height,engine,string,image,loop
        !          12030: 
        !          12031: error,black,color,length,height,engine,string,image,loop
        !          12032: error,black,color,length,height,engine,string,image,loop
        !          12033: error,black,color,length,height,engine,string,image,loop
        !          12034: 
        !          12035: error,black,color,length,height,engine,string,image,loop
        !          12036: 
        !          12037: 
        !          12038: 
        !          12039: error,black,color,length,height,engine,string,image,loop
        !          12040: 
        !          12041: error,black,color,length,height,engine,string,image,loop
        !          12042: 
        !          12043: 
        !          12044: error,black,color,length,height,engine,string,image,loop
        !          12045: 
        !          12046: error,black,color,length,height,engine,string,image,loop
        !          12047: 
        !          12048: 
        !          12049: 
        !          12050: trigonometry,motion,chemical,polarization,unit,nucleic,addition,atoms,molecules,proteins,vectors,vector,position,light,acids,displacement
        !          12051: system,reference,refer,systems,path,of,axes,symbols,frame,coordinate,point,direction,a,vector,position,definition,origin,particle,displacement,dimensionality
        !          12052: positive,unit,length,magnitude,direction,vectors,vector,graph,units
        !          12053: equality,two,angle,of,zero,vectors,vector,position,definition,between,equal,scalar,positional
        !          12054: unit,of,a,components,angstrom,vector,definition,numericalcomponents,multiple
        !          12055: number,unit,work,magnitude,direction,vectors,vector,particle,constant,displacement,velocity,units
        !          12056: addition,of,properties,zero,vectors,vector,definition,sum
        !          12057: number,reference,angle,unit,product,length,addition,speed,diagram,frame,magnitude,vectors,vector,position,displacement,physics
        !          12058: of,subtraction,symbols,subtract,vectors,vector,rule,definition,for,displacement,rules
        !          12059: vector,equation
        !          12060: number,reference,positive,angle,unit,addition,diagram,frame,magnitude,direction,vectors,vector,negative,position,processes,displacement
        !          12061: center,distance,length,atoms,block,atom,magnitude,vectors,vector,perpendicular,displacement
        !          12062: magnitude,vectors,vector,position,diagram,displacement
        !          12063: distance,unit,molecule,work,diagram,atoms,atom,circular,magnitude,direction,vectors,vector,earth,hydrogen,position,organic,constant,sun,displacement,plane,velocity
        !          12064: number,positive,angle,line,unit,length,addition,parallel,diagram,frame,magnitude,direction,vectors,vector,negative,position,practice,displacement
        !          12065: number,positive,angle,line,unit,length,addition,parallel,diagram,frame,magnitude,direction,vectors,vector,negative,position,practice,displacement,units
        !          12066: unit,addition,vectors,vector,position,displacement
        !          12067: number,unit,work,magnitude,direction,vectors,vector,particle,constant,displacement,velocity,units
        !          12068: 
        !          12069: length,height,error,black,color,engine,string,image,loop
        !          12070: length,height,error,black,color,engine,string,image,loop
        !          12071: 
        !          12072: 
        !          12073: 
        !          12074: 
        !          12075: 
        !          12076: 
        !          12077: 
        !          12078: 
        !          12079: length,height,error,black,color,engine,string,image,loop
        !          12080: length,height,error,black,color,engine,string,image,loop
        !          12081: length,height,error,black,color,engine,string,image,loop
        !          12082: 
        !          12083: 
        !          12084: 
        !          12085: length,height,error,black,color,engine,string,image,loop
        !          12086: 
        !          12087: 
        !          12088: 
        !          12089: length,height,error,black,color,engine,string,image,loop
        !          12090: 
        !          12091: 
        !          12092: 
        !          12093: error,black,color,length,height,engine,string,image,loop
        !          12094: length,height,error,black,color,engine,string,image,loop
        !          12095: 
        !          12096: error,black,color,length,height,engine,string,image,loop
        !          12097: 
        !          12098: length,height,error,black,color,engine,string,image,loop
        !          12099: length,height,error,black,color,engine,string,image,loop
        !          12100: length,height,error,black,color,engine,string,image,loop
        !          12101: 
        !          12102: 
        !          12103: length,height,error,black,color,engine,string,image,loop
        !          12104: length,height,error,black,color,engine,string,image,loop
        !          12105: 
        !          12106: length,height,error,black,color,engine,string,image,loop
        !          12107: error,black,color,length,height,engine,string,image,loop
        !          12108: 
        !          12109: length,height,error,black,color,engine,string,image,loop
        !          12110: 
        !          12111: 
        !          12112: 
        !          12113: length,height,error,black,color,engine,string,image,loop
        !          12114: length,height,error,black,color,engine,string,image,loop
        !          12115: length,height,error,black,color,engine,string,image,loop
        !          12116: length,height,error,black,color,engine,string,image,loop
        !          12117: 
        !          12118: length,height,error,black,color,engine,string,image,loop
        !          12119: 
        !          12120: length,height,error,black,color,engine,string,image,loop
        !          12121: 
        !          12122: length,height,error,black,color,engine,string,image,loop
        !          12123: length,height,error,black,color,engine,string,image,loop
        !          12124: length,height,error,black,color,engine,string,image,loop
        !          12125: length,height,error,black,color,engine,string,image,loop
        !          12126: 
        !          12127: 
        !          12128: 
        !          12129: 
        !          12130: length,height,error,black,color,engine,string,image,loop
        !          12131: 
        !          12132: 
        !          12133: length,height,error,black,color,engine,string,image,loop
        !          12134: length,height,error,black,color,engine,string,image,loop
        !          12135: length,height,error,black,color,engine,string,image,loop
        !          12136: length,height,error,black,color,engine,string,image,loop
        !          12137: length,height,error,black,color,engine,string,image,loop
        !          12138: 
        !          12139: length,height,error,black,color,engine,string,image,loop
        !          12140: 
        !          12141: length,height,error,black,color,engine,string,image,loop
        !          12142: 
        !          12143: 
        !          12144: length,height,error,black,color,engine,string,image,loop
        !          12145: length,height,error,black,color,engine,string,image,loop
        !          12146: length,height,error,black,color,engine,string,image,loop
        !          12147: 
        !          12148: 
        !          12149: 
        !          12150: 
        !          12151: period,length,height,error,black,color,engine,string,image,loop
        !          12152: 
        !          12153: 
        !          12154: length,height,error,black,color,engine,string,image,loop
        !          12155: length,height,error,black,color,engine,string,image,loop
        !          12156: 
        !          12157: 
        !          12158: length,height,error,black,color,engine,string,image,loop
        !          12159: 
        !          12160: 
        !          12161: period,length,height,error,black,color,engine,string,image,loop
        !          12162: length,height,error,black,color,engine,string,image,loop
        !          12163: 
        !          12164: 
        !          12165: length,height,error,black,color,engine,string,image,loop
        !          12166: length,height,error,black,color,engine,string,image,loop
        !          12167: 
        !          12168: length,height,error,black,color,engine,string,image,loop
        !          12169: 
        !          12170: length,height,error,black,color,engine,string,image,loop
        !          12171: 
        !          12172: length,height,error,black,color,engine,string,image,loop
        !          12173: length,height,error,black,color,engine,string,image,loop
        !          12174: length,height,error,black,color,engine,string,image,loop
        !          12175: 
        !          12176: length,height,error,black,color,engine,string,image,loop
        !          12177: length,height,error,black,color,engine,string,image,loop
        !          12178: 
        !          12179: length,height,error,black,color,engine,string,image,loop
        !          12180: length,height,error,black,color,engine,string,image,loop
        !          12181: length,height,error,black,color,engine,string,image,loop
        !          12182: 
        !          12183: length,height,error,black,color,engine,string,image,loop
        !          12184: 
        !          12185: length,height,error,black,color,engine,string,image,loop
        !          12186: 
        !          12187: period,length,height,error,black,color,engine,string,image,loop
        !          12188: 
        !          12189: length,height,error,black,color,engine,string,image,loop
        !          12190: length,height,error,black,color,engine,string,image,loop
        !          12191: 
        !          12192: 
        !          12193: length,height,error,black,color,engine,string,image,loop
        !          12194: 
        !          12195: error,black,color,length,height,engine,string,image,loop
        !          12196: 
        !          12197: 
        !          12198: 
        !          12199: error,black,color,length,height,string,image,loop
        !          12200: 
        !          12201: error,black,color,length,height,engine,string,image,loop
        !          12202: 
        !          12203: length,height,error,black,color,engine,string,image,loop
        !          12204: 
        !          12205: error,black,color,length,height,engine,string,image,loop
        !          12206: 
        !          12207: error,black,color,length,height,string,image,loop
        !          12208: 
        !          12209: error,black,color,length,height,engine,string,image,loop
        !          12210: 
        !          12211: error,black,color,length,height,engine,string,image,loop
        !          12212: 
        !          12213: error,black,color,length,height,string,image,loop
        !          12214: 
        !          12215: 
        !          12216: error,black,color,length,height,engine,string,image,loop
        !          12217: length,height,error,black,color,engine,string,image,loop
        !          12218: error,black,color,length,height,engine,string,image,loop
        !          12219: 
        !          12220: 
        !          12221: 
        !          12222: error,black,color,length,height,engine,string,image,loop
        !          12223: 
        !          12224: error,black,color,length,height,engine,string,image,loop
        !          12225: 
        !          12226: length,height,error,black,color,engine,string,image,loop
        !          12227: period,length,height,error,black,color,engine,string,image,loop
        !          12228: 
        !          12229: error,black,color,length,height,engine,string,image,loop
        !          12230: 
        !          12231: error,black,color,length,height,engine,string,image,loop
        !          12232: 
        !          12233: error,black,color,length,height,engine,string,image,loop
        !          12234: 
        !          12235: 
        !          12236: 
        !          12237: length,height,error,black,color,engine,string,image,loop
        !          12238: length,height,error,black,color,engine,string,image,loop
        !          12239: 
        !          12240: 
        !          12241: error,black,color,length,height,engine,string,image,loop
        !          12242: error,black,color,length,height,engine,string,image,loop
        !          12243: 
        !          12244: 
        !          12245: 
        !          12246: error,black,color,length,height,engine,string,image,loop
        !          12247: 
        !          12248: 
        !          12249: 
        !          12250: error,black,color,length,height,engine,string,image,loop
        !          12251: length,height,error,black,color,engine,string,image,loop
        !          12252: period,length,height,error,black,color,engine,string,image,loop
        !          12253: error,black,color,length,height,engine,string,image,loop
        !          12254: 
        !          12255: error,black,color,length,height,engine,string,image,loop
        !          12256: 
        !          12257: length,height,error,black,color,engine,string,image,loop
        !          12258: 
        !          12259: 
        !          12260: length,height,error,black,color,engine,string,image,loop
        !          12261: 
        !          12262: length,height,error,black,color,engine,string,image,loop
        !          12263: error,black,color,length,height,engine,string,image,loop
        !          12264: error,black,color,length,height,engine,string,image,loop
        !          12265: 
        !          12266: 
        !          12267: error,black,color,length,height,engine,string,image,loop
        !          12268: error,black,color,length,height,engine,string,image,loop
        !          12269: error,black,color,length,height,engine,string,image,loop
        !          12270: period,length,height,error,black,color,engine,string,image,loop
        !          12271: 
        !          12272: 
        !          12273: 
        !          12274: period,length,height,error,black,color,engine,string,image,loop
        !          12275: 
        !          12276: 
        !          12277: 
        !          12278: length,height,error,black,color,engine,string,image,loop
        !          12279: 
        !          12280: length,height,error,black,color,engine,string,image,loop
        !          12281: error,black,color,length,height,engine,string,image,loop
        !          12282: length,height,error,black,color,engine,string,image,loop
        !          12283: 
        !          12284: 
        !          12285: length,height,error,black,color,engine,string,image,loop
        !          12286: 
        !          12287: length,height,error,black,color,string,image,loop
        !          12288: 
        !          12289: error,black,color,length,height,engine,string,image,loop
        !          12290: number,spring,exam,units
        !          12291: gas,pattern,experiment,equilibrium,diffraction,reference,momentum,motion,forces,energy,archimedes,decays,unit,length,field,angular,addition,orbital,energies,gravitational,expansion,doppler,fields,gravity,ideal,torque,newtons,satellite,temperature,body,force,spherical,rotational,series,block,derivation,dynamics,collisions,mechanical,circular,oscillator,kinematics,acceleration,vector,static,gravitation,inertia,mass,law,waves,relativistic,linear,friction,rotating,sound,entropy,spring,particle,interference,solution,relativity,potential,thermodynamics,exam,lorentz,plane,dilation,intensity,weight,velocity,oscillations,data,contraction
        !          12292: number,unit,physics,exam,weight,units
        !          12293: 
        !          12294: 
        !          12295: displacement,force,curve
        !          12296: shm,oscillator,maximum,amplitude,equilibrium,acceleration,motion,period,energy,distance,mass,position,law,angular,linear,graphs,constant,newtons,potential,harmonic,displacement,force,velocity,phase,frequency
        !          12297: shm,equilibrium,period,position,constant,displacement,oscillations
        !          12298: shm,oscillating,equilibrium,positive,motion,period,energy,angular,force,acceleration,displaced,linear,spring,vibrations,potential,harmonic,displacement,frequency,oscillations
        !          12299: law,solids,elasticity,Hooke
        !          12300: differentiate,mev,mass,ev,hz,weight
        !          12301: shm,motion,energy,spring,harmonic,displacement,force,dynamics,restoring
        !          12302: oscillator,initial,angular,space,SHM,velocity,phase,frequency
        !          12303: Motion,equilibrium,motion,energy,position,Simple,Harmonic,SHM,simple,potential,harmonic,force,restoring
        !          12304: elastic,spring,force,Hooke,restoring
        !          12305: amplitude,equation,angular,spring,SHM,displacement,frequency
        !          12306: harmonic
        !          12307: equilibrium,initial,force,phase,restoring,limit,position,elastic,linear,for,SHM,constant,Hooke
        !          12308: 
        !          12309: 
        !          12310: 
        !          12311: length,height,error,black,color,engine,string,image,loop
        !          12312: 
        !          12313: length,height,error,black,color,engine,string,image,loop
        !          12314: length,height,error,black,color,engine,string,image,loop
        !          12315: 
        !          12316: length,height,error,black,color,engine,string,image,loop
        !          12317: length,height,error,black,color,engine,string,image,loop
        !          12318: 
        !          12319: length,height,error,black,color,engine,string,image,loop
        !          12320: 
        !          12321: length,height,error,black,color,engine,string,image,loop
        !          12322: 
        !          12323: length,height,error,black,color,engine,string,image,loop
        !          12324: 
        !          12325: oscillator,period,kinetic,energy,angular,potential,displacement,force,velocity
        !          12326: oscillator,reference,positive,angle,negative,harmonic,displacement,phase
        !          12327: shm,maximum,motion,period,energy,angular,force,phase,circular,oscillator,amplitude,specific,acceleration,kinetic,position,particle,particles,potential,harmonic,displacement,graph,velocity,frequency
        !          12328: shm,maximum,amplitude,period,kinetic,energy,mass,position,angular,cycle,potential,displacement,velocity,frequency
        !          12329: shm,maximum,equilibrium,motion,period,energy,angular,cycle,force,phase,amplitude,kinetic,particle,potential,harmonic,displacement,oscillates,frequency
        !          12330: shm,oscillators,motion,period,energy,force,phase,dynamics,acceleration,kinetic,mass,potential,harmonic,displacement,velocity
        !          12331: Motion,oscillator,oscillatory,motion,Simple,Harmonic,SHM,simple,SHO,harmonic,vibrational,Oscillator
        !          12332: amplitude,hertz,cosine,angular,spring,SHM,displacement,SI,sine,phase,frequency
        !          12333: second,equilibrium,energy,newtons,kinetic,SHM,displacement
        !          12334: 
        !          12335: shm,motion,period,angular,cycle,phase,oscillator,amplitude,position,harmonic,displacement,velocity,frequency
        !          12336: motion,harmonic
        !          12337: 
        !          12338: 
        !          12339: period,length,height,error,black,color,engine,string,image,loop
        !          12340: 
        !          12341: length,height,error,black,color,engine,string,image,loop
        !          12342: 
        !          12343: 
        !          12344: 
        !          12345: period,length,height,error,black,color,engine,string,image,loop
        !          12346: 
        !          12347: length,height,error,black,color,engine,string,image,loop
        !          12348: 
        !          12349: length,height,error,black,color,engine,string,image,loop
        !          12350: length,height,error,black,color,engine,string,image,loop
        !          12351: 
        !          12352: length,height,error,black,color,engine,string,image,loop
        !          12353: period,length,height,error,black,color,engine,string,image,loop
        !          12354: 
        !          12355: length,height,error,black,color,engine,string,image,loop
        !          12356: 
        !          12357: 
        !          12358: 
        !          12359: 
        !          12360: length,height,error,black,color,engine,string,image,loop
        !          12361: 
        !          12362: length,height,error,black,color,engine,string,image,loop
        !          12363: 
        !          12364: length,height,error,black,color,engine,string,image,loop
        !          12365: 
        !          12366: length,height,error,black,color,engine,string,image,loop
        !          12367: 
        !          12368: unit,block,color,units
        !          12369: gas,experiment,equilibrium,reference,momentum,motion,forces,energy,decays,unit,length,field,angular,addition,orbital,energies,gravitational,doppler,fields,gravity,dimension,ideal,torque,newtons,satellite,temperature,body,force,pressure,spherical,rotational,derivation,dynamics,collisions,mechanical,circular,oscillator,kinematics,acceleration,vector,fluid,earth,static,inertia,mass,law,waves,reactions,wave,relativistic,linear,friction,rotating,sound,entropy,spring,particle,interference,surface,relativity,potential,square,spheres,physics,thermodynamics,lorentz,plane,dilation,intensity,velocity,oscillations,contraction
        !          12370: masses,pipe,frequencies,gas,minimum,superposition,momentum,motion,period,energy,distance,unit,length,field,youngs,stretched,net,angular,orbital,moment,cycle,wavelength,gravitational,work,dimension,solid,torque,transverse,newtons,speed,satellite,force,spherical,rotational,tension,fundamental,strain,dynamics,radius,circular,amplitude,vectors,modulus,acceleration,vector,area,stress,kinetic,inertia,mass,sinusoidal,law,harmonics,elastic,waves,conserved,power,perpendicular,wave,organ,laws,linear,density,sound,spring,particle,string,conservation,centripetal,particles,surface,constant,rotation,harmonic,displacement,plane,medium,intensity,velocity,frequency,data
        !          12371: frequencies,gas,maximum,center,equilibrium,reference,oscillators,motion,ball,forces,period,length,angular,moment,energies,gravitational,expansion,proton,work,independent,solid,equivalent,ideal,balance,diagram,resonance,satellite,states,series,frame,instantaneous,derivation,flow,collisions,thermal,oscillator,magnitude,direction,free,amplitude,components,acceleration,vector,average,kinetic,static,mass,position,law,kelvin,conserved,power,wave,reversible,laws,light,friction,density,reservoir,particle,volume,interference,solution,constant,relativity,sun,resistance,graph,dilation,intensity,units,oscillations,isothermal,contraction,decay,constructive,pendulum,masses,pattern,polar,experiment,heat,trajectory,number,momentum,liquids,oscillation,angle,line,energy,archimedes,decays,maxima,unit,field,net,addition,cycle,destructive,fields,gravity,parallel,gases,torque,newtons,speed,adiabatic,molecules,body,temperature,force,pressure,lines,spherical,rotational,phase,formula,dynamics,mechanical,radius,specific,vectors,kinematics,component,earth,fluid,einstein,inertia,velocities,rotates,waves,reactions,relativistic,isolated,processes,linear,rotating,entropy,spring,separation,conservation,air,graphs,particles,surface,capacity,potential,rotation,harmonic,square,displacement,spheres,external,thermodynamics,lorentz,plane,electron,weight,collision,velocity,frequency,process
        !          12372: length,height,error,black,color,string,image,loop
        !          12373: 
        !          12374: length,height,error,black,color,engine,string,image,loop
        !          12375: 
        !          12376: error,db,black,color,length,height,engine,string,image,loop
        !          12377: 
        !          12378: length,height,error,black,color,engine,string,image,loop
        !          12379: 
        !          12380: length,error,color,engine,string,height,black,image,loop
        !          12381: 
        !          12382: length,height,error,black,color,engine,string,image,loop
        !          12383: 
        !          12384: length,height,error,black,color,engine,string,image,loop
        !          12385: 
        !          12386: length,height,error,black,color,engine,string,image,loop
        !          12387: 
        !          12388: length,error,color,engine,string,height,black,image,loop
        !          12389: 
        !          12390: length,error,color,engine,string,height,black,image,loop
        !          12391: 
        !          12392: length,error,color,engine,string,height,black,image,loop
        !          12393: 
        !          12394: error,black,color,length,height,engine,string,image,loop
        !          12395: 
        !          12396: error,black,color,length,height,engine,string,image,loop
        !          12397: 
        !          12398: length,height,error,black,color,engine,string,image,loop
        !          12399: length,height,error,black,color,engine,string,image,loop
        !          12400: 
        !          12401: length,height,error,black,color,engine,string,image,loop
        !          12402: 
        !          12403: error,black,color,length,height,engine,string,image,loop
        !          12404: 
        !          12405: 
        !          12406: period,length,height,error,black,color,engine,string,image,loop
        !          12407: 
        !          12408: length,height,error,black,color,engine,string,image,loop
        !          12409: 
        !          12410: length,height,error,black,color,engine,string,image,loop
        !          12411: 
        !          12412: error,black,color,length,height,engine,string,image,loop
        !          12413: 
        !          12414: length,height,error,black,color,engine,string,image,loop
        !          12415: 
        !          12416: error,period,black,color,length,height,engine,string,image,loop
        !          12417: 
        !          12418: 
        !          12419: length,height,error,black,color,engine,string,image,loop
        !          12420: 
        !          12421: length,height,error,black,color,engine,string,image,loop
        !          12422: 
        !          12423: length,height,error,black,color,engine,string,image,loop
        !          12424: 
        !          12425: length,error,color,engine,string,height,black,image,loop
        !          12426: 
        !          12427: error,black,color,length,height,engine,string,image,loop
        !          12428: 
        !          12429: period,length,height,error,black,color,engine,string,image,loop
        !          12430: 
        !          12431: length,height,error,black,color,engine,string,image,loop
        !          12432: 
        !          12433: error,black,color,length,height,engine,string,image,loop
        !          12434: 
        !          12435: error,black,color,length,height,engine,string,image,loop
        !          12436: 
        !          12437: error,black,color,length,height,engine,string,image,loop
        !          12438: 
        !          12439: length,height,error,black,color,engine,string,image,loop
        !          12440: 
        !          12441: length,height,error,black,color,engine,string,image,loop
        !          12442: 
        !          12443: error,black,color,length,height,engine,string,image,loop
        !          12444: 
        !          12445: error,black,color,length,height,engine,string,image,loop
        !          12446: error,black,color,length,height,engine,string,image,loop
        !          12447: 
        !          12448: error,black,color,length,height,engine,string,image,loop
        !          12449: 
        !          12450: error,black,color,length,height,engine,string,image,loop
        !          12451: 
        !          12452: error,black,color,length,height,engine,string,image,loop
        !          12453: 
        !          12454: 
        !          12455: length,height,error,black,color,engine,string,image,loop
        !          12456: 
        !          12457: error,black,color,length,height,engine,string,image,loop
        !          12458: 
        !          12459: length,height,error,black,color,engine,string,image,loop
        !          12460: 
        !          12461: error,period,black,color,length,height,engine,string,image,loop
        !          12462: 
        !          12463: error,black,color,length,height,engine,string,image,loop
        !          12464: 
        !          12465: length,height,error,black,color,engine,string,image,loop
        !          12466: 
        !          12467: error,black,color,length,height,engine,string,image,loop
        !          12468: 
        !          12469: error,black,color,length,height,engine,string,image,loop
        !          12470: 
        !          12471: length,height,error,black,color,engine,string,image,loop
        !          12472: 
        !          12473: error,black,color,length,height,engine,string,image,loop
        !          12474: 
        !          12475: length,height,error,black,color,engine,string,image,loop
        !          12476: 
        !          12477: error,black,color,length,height,engine,string,image,loop
        !          12478: 
        !          12479: error,black,color,length,height,engine,string,image,loop
        !          12480: 
        !          12481: error,black,color,length,height,engine,string,image,loop
        !          12482: 
        !          12483: error,black,color,length,height,engine,string,image,loop
        !          12484: 
        !          12485: error,black,color,length,height,engine,string,image,loop
        !          12486: 
        !          12487: error,period,black,color,length,height,engine,string,image,loop
        !          12488: 
        !          12489: error,period,black,color,length,height,engine,string,image,loop
        !          12490: 
        !          12491: length,height,error,black,color,engine,string,image,loop
        !          12492: 
        !          12493: 
        !          12494: error,black,color,length,height,engine,string,image,loop
        !          12495: 
        !          12496: error,black,color,length,height,engine,string,image,loop
        !          12497: 
        !          12498: error,black,color,length,height,engine,string,image,loop
        !          12499: 
        !          12500: error,period,black,color,length,height,engine,string,image,loop
        !          12501: 
        !          12502: error,black,color,length,height,engine,string,image,loop
        !          12503: 
        !          12504: error,black,color,length,height,engine,string,image,loop
        !          12505: 
        !          12506: error,black,color,length,height,engine,string,image,loop
        !          12507: 
        !          12508: error,black,color,length,height,engine,string,image,loop
        !          12509: 
        !          12510: error,black,color,length,height,engine,string,image,loop
        !          12511: 
        !          12512: error,black,color,length,height,engine,string,image,loop
        !          12513: 
        !          12514: error,black,color,length,height,engine,string,image,loop
        !          12515: 
        !          12516: error,black,color,length,height,engine,string,image,loop
        !          12517: 
        !          12518: error,black,color,length,height,engine,string,image,loop
        !          12519: 
        !          12520: error,black,color,length,height,engine,string,image,loop
        !          12521: 
        !          12522: error,black,color,length,height,engine,string,image,loop
        !          12523: 
        !          12524: error,black,color,length,height,engine,string,image,loop
        !          12525: 
        !          12526: error,black,color,length,height,engine,string,image,loop
        !          12527: 
        !          12528: error,black,color,length,height,engine,string,image,loop
        !          12529: 
        !          12530: error,black,color,length,height,engine,string,image,loop
        !          12531: 
        !          12532: error,black,color,length,height,engine,string,image,loop
        !          12533: 
        !          12534: error,black,color,length,height,engine,string,image,loop
        !          12535: 
        !          12536: error,black,color,length,height,engine,string,image,loop
        !          12537: 
        !          12538: 
        !          12539: 
        !          12540: error,period,black,color,length,height,engine,string,image,loop
        !          12541: 
        !          12542: error,black,color,length,height,string,image,loop
        !          12543: 
        !          12544: error,black,color,length,height,engine,string,image,loop
        !          12545: 
        !          12546: error,black,color,length,height,engine,string,image,loop
        !          12547: 
        !          12548: error,black,color,length,height,engine,string,image,loop
        !          12549: 
        !          12550: length,height,error,black,color,engine,string,image,loop
        !          12551: 
        !          12552: error,black,color,length,height,engine,string,image,loop
        !          12553: 
        !          12554: error,black,color,length,height,engine,string,image,loop
        !          12555: 
        !          12556: error,black,color,length,height,engine,string,image,loop
        !          12557: 
        !          12558: error,black,color,length,height,engine,string,image,loop
        !          12559: 
        !          12560: error,black,color,length,height,engine,string,image,loop
        !          12561: 
        !          12562: error,black,color,length,height,engine,string,image,loop
        !          12563: error,black,color,length,height,engine,string,image,loop
        !          12564: 
        !          12565: error,black,color,length,height,engine,string,image,loop
        !          12566: 
        !          12567: error,black,color,length,height,engine,string,image,loop
        !          12568: 
        !          12569: error,period,black,color,length,height,engine,string,image,loop
        !          12570: 
        !          12571: error,black,color,length,height,engine,string,image,loop
        !          12572: 
        !          12573: error,black,color,length,height,engine,string,image,loop
        !          12574: 
        !          12575: 
        !          12576: error,black,color,length,height,engine,string,image,loop
        !          12577: 
        !          12578: error,period,black,color,length,height,engine,string,image,loop
        !          12579: 
        !          12580: length,height,error,black,color,engine,string,image,loop
        !          12581: 
        !          12582: error,black,color,length,height,engine,string,image,loop
        !          12583: 
        !          12584: error,black,color,length,height,engine,string,image,loop
        !          12585: 
        !          12586: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12587: 
        !          12588: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12589: 
        !          12590: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12591: 
        !          12592: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12593: 
        !          12594: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12595: 
        !          12596: error,st,le,period,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12597: 
        !          12598: error,ge,ring,engine,string,gt,st,le,image,black,color,length,ne,height,loop
        !          12599: 
        !          12600: 
        !          12601: error,black,color,length,height,engine,string,image,loop
        !          12602: 
        !          12603: error,black,color,length,height,engine,string,image,loop
        !          12604: 
        !          12605: 
        !          12606: error,black,color,length,height,string,image,loop
        !          12607: 
        !          12608: error,black,color,length,height,engine,string,image,loop
        !          12609: 
        !          12610: error,black,color,length,height,engine,string,image,loop
        !          12611: 
        !          12612: assembling,potential,charges,energy,electron,charge,proton
        !          12613: error,period,black,color,length,height,engine,string,image,loop
        !          12614: 
        !          12615: error,black,color,length,height,engine,string,image,loop
        !          12616: 
        !          12617: error,black,color,length,height,engine,string,image,loop
        !          12618: 
        !          12619: error,period,black,color,length,height,engine,string,image,loop
        !          12620: 
        !          12621: error,black,color,length,height,engine,string,image,loop
        !          12622: 
        !          12623: error,black,color,length,height,engine,string,image,loop
        !          12624: 
        !          12625: error,period,black,color,length,height,engine,string,image,loop
        !          12626: 
        !          12627: error,period,black,color,length,height,engine,string,image,loop
        !          12628: 
        !          12629: error,period,black,color,length,height,engine,string,image,loop
        !          12630: 
        !          12631: error,period,black,color,length,height,engine,string,image,loop
        !          12632: 
        !          12633: error,period,black,color,length,height,engine,string,image,loop
        !          12634: 
        !          12635: error,period,black,color,length,height,engine,string,image,loop
        !          12636: 
        !          12637: error,period,black,color,length,height,engine,string,image,loop
        !          12638: 
        !          12639: error,period,black,color,length,height,engine,string,image,loop
        !          12640: 
        !          12641: error,period,black,color,length,height,engine,string,image,loop
        !          12642: 
        !          12643: error,black,color,length,height,engine,string,image,loop
        !          12644: 
        !          12645: 
        !          12646: error,black,color,length,height,engine,string,image,loop
        !          12647: 
        !          12648: error,black,color,length,height,engine,string,image,loop
        !          12649: 
        !          12650: error,black,color,length,height,engine,string,image,loop
        !          12651: 
        !          12652: error,black,color,length,height,engine,string,image,loop
        !          12653: 
        !          12654: error,black,color,length,height,engine,string,image,loop
        !          12655: 
        !          12656: error,black,color,length,height,engine,string,image,loop
        !          12657: 
        !          12658: error,black,color,length,height,engine,string,image,loop
        !          12659: 
        !          12660: 
        !          12661: error,black,color,length,height,string,image,loop
        !          12662: error,black,color,length,height,engine,string,image,loop
        !          12663: 
        !          12664: error,frictional,black,color,length,height,gravity,engine,string,image,force,loop
        !          12665: 
        !          12666: error,frictional,period,black,color,length,height,engine,string,torque,image,loop
        !          12667: 
        !          12668: error,black,color,length,height,gravity,engine,string,image,loop
        !          12669: 
        !          12670: error,black,color,length,height,engine,string,image,force,loop
        !          12671: 
        !          12672: error,black,color,length,height,gravity,engine,string,image,force,loop
        !          12673: 
        !          12674: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12675: 
        !          12676: error,black,color,length,height,engine,string,image,loop
        !          12677: 
        !          12678: error,period,black,color,length,height,engine,string,image,loop
        !          12679: 
        !          12680: error,black,color,length,height,engine,string,image,loop
        !          12681: 
        !          12682: error,black,color,length,height,engine,string,image,loop
        !          12683: 
        !          12684: error,black,color,length,height,engine,string,image,loop
        !          12685: 
        !          12686: error,number,black,color,length,height,engine,string,image,loop
        !          12687: 
        !          12688: error,black,color,length,height,engine,string,image,loop
        !          12689: 
        !          12690: error,black,color,length,height,engine,string,image,loop
        !          12691: 
        !          12692: error,black,color,length,height,engine,string,image,loop
        !          12693: 
        !          12694: Gauss,s,gauss's,surface,law,field,charge,gaussian,density
        !          12695: electric,coulombs,surface,law,field,fields,gaussian
        !          12696: gauss,s, Gauss's, Gaussian, gaussian,electric,particles,surface,force,gausss,law,field,charge,gravitational,density
        !          12697: electric,distribution,distributions,spherical,charge,symmetric
        !          12698: triangle,component,equilateral
        !          12699: coulombs,charges,interaction,field,charge,coulomb
        !          12700: normal,cylindrical,integral,surface,symmetry,plane,surfaces,planar,planes,charge,gaussian
        !          12701: charges,charge,force,resultant
        !          12702: coulombs,components,equilibrium,acceleration,charged,electrostatic,charges,forces,force,resultant,charge
        !          12703: point,electric,coulombs,charges,static,charge,gravitational,electrostatic,force
        !          12704: electric,particle,charged,interaction,interactions,electromagnetic,charge
        !          12705: electric,s,static,gravitation,Coulomb,coefficient,law,twobody,charge,coulomb,gravitational,proton,electrostatic,force,electron
        !          12706: example,pair,charges,pairs,force,Coulomb,charge
        !          12707: 
        !          12708: electric,coulombs,constant,charged,electrostatic,charges,forces,force,charge,coulomb
        !          12709: 
        !          12710: 
        !          12711: 
        !          12712: error,black,length,string,loop
        !          12713: 
        !          12714: error,black,length,string,loop
        !          12715: 
        !          12716: 
        !          12717: error,black,length,string,loop
        !          12718: 
        !          12719: 
        !          12720: error,black,length,string,loop
        !          12721: 
        !          12722: 
        !          12723: fields
        !          12724: electric,particle,coulombs,particles,constant,charged,uniform,force,lines,actionatadistance,field,charge
        !          12725: current,electric,battery,electronvolt,coulombs,particles,mev,potential,electrostatic,forces,kinetic,energy,force,resistance,mass,electronvolts,beam,ev,field,volt,power,ampere,work
        !          12726: electric,acceleration,charges,field,charge
        !          12727: electric,acceleration,charges,field,charge,accelerate
        !          12728: electric,components,motion,field,charge,gravitational,uniform,force,derivation
        !          12729: coulombs,electrostatic,force,at,field
        !          12730: electric,motion,Field,field,gravitational,of,uniform,force,in,Electric
        !          12731: electrostatics,point,electric,coulombs,line,field,charge,coulomb,force,lines,strength
        !          12732: electric,magnitude,direction,specific,components,component,charges,field,charge,equivalent,force
        !          12733: 
        !          12734: virtual,electric,vector,uniform,force,lines,actionatadistance,field,charge,nonuniform
        !          12735: 
        !          12736: error,black,length,string,loop
        !          12737: 
        !          12738: error,black,length,string,loop
        !          12739: 
        !          12740: error,black,length,string,loop
        !          12741: 
        !          12742: error,black,length,string,loop
        !          12743: 
        !          12744: error,black,length,string,loop
        !          12745: 
        !          12746: error,black,length,string,loop
        !          12747: 
        !          12748: error,black,length,string,loop
        !          12749: 
        !          12750: error,black,length,string,loop
        !          12751: 
        !          12752: error,black,length,string,loop
        !          12753: 
        !          12754: error,black,length,string,loop
        !          12755: 
        !          12756: error,black,length,string,loop
        !          12757: 
        !          12758: error,black,length,string,loop
        !          12759: 
        !          12760: error,black,length,string,loop
        !          12761: 
        !          12762: error,black,length,string,loop
        !          12763: 
        !          12764: error,black,length,string,loop
        !          12765: 
        !          12766: electric,charged,potential,electrostatic,charges,energy,force,field,volt
        !          12767: electric,potential,charges,external,energy,field,change,charge,work
        !          12768: electric,separation,magnitude,equivalent,charged,potential,joules,positive,ions,charges,forces,external,kinetic,static,energy,force,ev,electron,field,intensity,conserved,charge,coulomb,fields,electrical,proton,work
        !          12769: charges,energy,charge,conservation,potential,electrostatic,force
        !          12770: force,conservative
        !          12771: energy,field,conservative,conservation,potential,electrostatic,force
        !          12772: point,integral,potential,electrostatic,field,charge,by,work
        !          12773: potential,electrostatic,energy
        !          12774: electric,meter,unit,field,volt,coulomb,newton,joule,units
        !          12775: 
        !          12776: electric,energy,volt,potential,electrostatic
        !          12777: electric,difference,kinetic,energy,field,work,potential,electrostatic,external
        !          12778: 
        !          12779: error,black,color,length,height,engine,string,image,loop
        !          12780: 
        !          12781: error,black,color,length,height,engine,string,image,loop
        !          12782: 
        !          12783: error,st,le,period,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12784: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12785: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12786: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12787: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12788: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12789: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12790: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12791: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12792: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12793: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12794: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12795: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12796: error,st,le,black,color,length,ne,height,ge,ring,engine,string,gt,image,loop
        !          12797: electric,surface,constant,charges,uniform,distribution,force,field,charge,gravitational,density
        !          12798: gauss,s, Gauss's,coulombs,surface,component,distribution,gausss,law,field,charge,gaussian
        !          12799: electric,equimagnitude,surface,component,Gauss,Law,normal,Gaussian,law,field
        !          12800: distribution,Gauss,law,symmetrical,charge
        !          12801: 
        !          12802: closed,surface, gauss's, Gauss's,integral,integration,surface,integrated,gausss,gaussian,closedsurface
        !          12803: 
        !          12804: error,period,black,color,length,height,engine,string,image,loop
        !          12805: 
        !          12806: 
        !          12807: 
        !          12808: error,period,black,color,length,height,engine,string,image,loop
        !          12809: 
        !          12810: error,period,black,color,length,height,engine,string,image,loop
        !          12811: error,black,color,length,height,engine,string,image,loop
        !          12812: error,black,color,length,height,engine,string,image,loop
        !          12813: 
        !          12814: error,period,black,color,length,height,engine,string,image,loop
        !          12815: error,period,black,color,length,height,engine,string,image,loop
        !          12816: 
        !          12817: 
        !          12818: error,period,black,color,length,height,engine,string,image,loop
        !          12819: 
        !          12820: 
        !          12821: error,period,black,color,length,height,engine,string,image,loop
        !          12822: 
        !          12823: error,period,black,color,length,height,engine,string,image,loop
        !          12824: 
        !          12825: error,black,color,length,height,engine,string,image,loop
        !          12826: 
        !          12827: error,black,color,length,height,engine,string,image,loop
        !          12828: 
        !          12829: error,period,black,color,length,height,engine,string,image,loop
        !          12830: electric,parallel,volume,surface,distance,law,field,plates,charge,linear,density
        !          12831: electric,infinite,Sheet,surface,sheet,Charge,plane,Gaussian,field,charge
        !          12832: 
        !          12833: cylinders,cylindrical,cable,sheet,cylinder,line,coaxial,charge,linear
        !          12834: 
        !          12835: error,black,color,length,height,engine,string,image,loop
        !          12836: 
        !          12837: error,black,color,length,height,engine,string,image,loop
        !          12838: 
        !          12839: error,black,color,length,height,engine,string,image,loop
        !          12840: 
        !          12841: 
        !          12842: 
        !          12843: error,black,color,length,height,engine,string,image,loop
        !          12844: error,black,color,length,height,engine,string,image,loop
        !          12845: 
        !          12846: 
        !          12847: error,black,color,length,height,engine,string,image,loop
        !          12848: error,black,color,length,height,engine,string,image,loop
        !          12849: error,black,color,length,height,engine,string,image,loop
        !          12850: error,black,color,length,height,engine,string,image,loop
        !          12851: 
        !          12852: error,black,color,length,height,engine,string,image,loop
        !          12853: 
        !          12854: 
        !          12855: error,black,color,length,height,engine,string,image,loop
        !          12856: 
        !          12857: error,black,color,length,height,engine,string,image,loop
        !          12858: 
        !          12859: 
        !          12860: error,black,color,length,height,engine,string,image,loop
        !          12861: 
        !          12862: error,black,color,length,height,engine,string,image,loop
        !          12863: 
        !          12864: error,black,color,length,height,engine,string,image,loop
        !          12865: 
        !          12866: 
        !          12867: error,black,color,length,height,engine,string,image,loop
        !          12868: 
        !          12869: error,black,color,length,height,engine,string,image,loop
        !          12870: error,black,color,length,height,engine,string,image,loop
        !          12871: error,black,color,length,height,engine,string,image,loop
        !          12872: 
        !          12873: error,black,color,length,height,engine,string,image,loop
        !          12874: 
        !          12875: error,black,color,length,height,engine,string,image,loop
        !          12876: 
        !          12877: error,black,color,length,height,engine,string,image,loop
        !          12878: 
        !          12879: error,black,color,length,height,engine,string,image,loop
        !          12880: 
        !          12881: error,st,le,black,length,string,gt,err,loop
        !          12882: error,st,le,black,length,string,gt,err,loop
        !          12883: error,st,le,black,length,string,gt,err,loop
        !          12884: error,st,le,black,length,string,gt,err,loop
        !          12885: approximation,derivative
        !          12886: taylor,derivatives,series,expansion
        !          12887: expansions,taylors,taylor,atoms,diatomic,distance,force,series,expansion,molecule,atomic
        !          12888: converges,taylors,convergence,taylor,plane,converge,series,power,expansion
        !          12889: approximate,difference,finite,taylors,expansion,approximation,series
        !          12890: trajectory,satellite
        !          12891: satellite
        !          12892: area,satellite
        !          12893: 
        !          12894: error,black,color,length,height,engine,string,image,loop
        !          12895: 
        !          12896: error,black,color,length,height,engine,string,image,loop
        !          12897: 
        !          12898: error,black,color,length,height,engine,string,image,loop
        !          12899: 
        !          12900: difference,conservation,potential,electrostatic,changes,energy,field
        !          12901: electric,volts,conservation,charged,reference,potential,electrostatic,charges,forces,kinetic,energy,force,field,charge,voltage,gravitational,fields,work,gravity
        !          12902: subatomic,Mev,eV,energy,mass,ev,electron,unit,volt,MeV,units,atomic
        !          12903: electric,difference,accelerators,acceleration,beamcurrent,charges,power,accelerated,particle,current,particles,beam,accelerate,accelerating
        !          12904: 
        !          12905: electric,battery,amperes,electron,field,volt,charge,power,electrons,electrical,ampere,proton
        !          12906: resistance,resistivity,atom,conductor,length
        !          12907: conductance,electric,thermal,resistivity,ohms,drift,heat,speed,conductor,average,joule,dissipation,energy,conducting,force,resistance,electron,field,power,velocity,electrons,voltage,conduction,resistor,ohm,conductivity
        !          12908: current,resistivity,resistance,resistor,ohm
        !          12909: dissipated,resistivity,volts,potential,conductor,watt,dissipation,amperes,resistance,volt,power,voltage,conduction,resistor
        !          12910: current,dissipated,electric,difference,resistivity,ohms,potential,dissipation,resistance,field,power,velocity,density
        !          12911: difference,resistivity,ohmic,Law,density,mho,conductivity,conductance,current,non,potential,resistance,Ohm,ohm
        !          12912: ohms,drift,carriers,density,current,Ohm,velocity,mean
        !          12913: dissipated,ionic,heat,current,dissipation,power,heating
        !          12914: 
        !          12915: electric,thermal,resistivity,ohms,heat,lattice,conductor,average,energy,velocities,heating,density,conductivity,conductance,speed,joule,conducting,resistance,velocity,conduction,ohm
        !          12916: currents,ohms,equivalent,parallelconnected,heat,potential,seriesconnected,dissipation,resistance,power,resistors,resistor
        !          12917: parallel,emf,circuits,dissipation,force,resistance,circuit,series,power,resistors,resistor,electromotive,resistances
        !          12918: current,dissipation,power,equivalent,potential,drop,circuit,resistors,resistor
        !          12919: current,difference,heat,potential,dissipation,amperes,resistance,effective,circuit,power,resistors,resistor
        !          12920: parallel,emf,direction,emfs,circuits,force,resistance,circuit,series,addition,resistors,electromotive
        !          12921: electric,emf,direction,direct,chemical,steady,electromotive,current,internal,force,resistance,circuit,Ohm,electrical,resistor,mechanical
        !          12922: nodepotential,node,rule,junction,charge,nodecurrent,currents,nodes,conservation,potential,circuits,circuit,rules
        !          12923: addition,resistances,conductance,parallel,circuits,resistance,circuit,series,resistors,conductances,resistor
        !          12924: parallel,kirkhhoff,circuits,kirkhhoffs,circuit,series
        !          12925: 
        !          12926: current,nodepotential,emf,direct,node,effective,volt,electromotive,nodecurrent,parallel,potential,drop,circuits,force,resistance,circuit,series,resistors,voltage,resistor
        !          12927: electric,discrete,dipole,coulombs,potential,charges,external,energy,cross,field,magnetic,charge,moment,work
        !          12928: electric,dipole,torque,equilibrium,potential,uniform,external,field,moment,work
        !          12929: rotating,electric,particle,dipole,torque,equilibrium,constant,potential,external,energy,field,perpendicular,moment,gravitational,work
        !          12930: point,electric,dipole,energy,field,moment,torque,potential,external,rotational
        !          12931: subatomic,electric,dipole,torque,transmission,potential,external,energy,magnetic,reception,moment,atomic,work
        !          12932: point,electric,dipole,polar,magnitude,potential,charges,plot,points,field,charge,moment,electrical
        !          12933: rotating,electric,dipole,torque,center,rotation,potential,displacement,forces,external,energy,force,rotational,field,work
        !          12934: point,electric,atom,dipole,equilibrium,charges,hydrogen,charge,proton,atoms,electron
        !          12935: 
        !          12936: dipole,power,expansion,series
        !          12937: dipole,integration,trajectory,potential,vector
        !          12938: electric,retardation,effect,force,field,magnetic,charge
        !          12939: 
        !          12940: electric,electricity,force,field,magnetic,fields,magnetism
        !          12941: electric,Maxwell,electricity,particles,interaction,electromagnetic,magnetic,charge,magnetism
        !          12942: electric,particle,coordinates,particles,charged,cartesian,field,magnetic,charge,fields
        !          12943: electric,currents,magnet,field
        !          12944: particle,electricity,charged,charges,forces,effect,force,magnetism
        !          12945: 
        !          12946: electric,field,magnetic,charge
        !          12947: magnitude,direction,screw,vectors,vector,cross,rule,product,rules
        !          12948: vector,electric,trajectory,component,lorentz,force,field,magnetic,fields
        !          12949: electric,induction,speed,motion,static,energy,lorentz,force,field,magnetic,angular,orbital,velocity,fields,tesla
        !          12950: radius,electric,magnitude,direction,trajectory,magnetic,charge,curvature,lorentz,force,electron,velocity
        !          12951: arcs,electric,circular,magnitude,trajectory,speed,component,motion,curvature,lorentz,force,velocities,electron,field,magnetic,velocity,proton
        !          12952: electric,induction,particle,circular,particles,charged,vacuum,speed,helical,vector,motion,uniform,gauge,lorentz,force,selector,field,magnetic,velocity,fields
        !          12953: north,pole,poles,magnet,force,south,field,magnetic
        !          12954: weber,induction,on,Lorentz,Force,vector,forces,lorentz,force,electron,product,gauss,magnetic,tesla
        !          12955: particle,circular,Motion,centripetal,cyclotron,Uniform,helical,motion,uniform,Field,Magnetic,field,magnetic,velocity
        !          12956: vacuum,gauge,ionize,selector,field,velocity,frequency,fields
        !          12957: 
        !          12958: induction,magnet,lorentz,force,field,magnetic,fields,tesla
        !          12959: magnitude,vectors,vector,commute,rule,unit,product,magnetic,parallel,righthand,cross,force
        !          12960: vectors,components,vector,component,cartesian,product,scalar,cross,multiplication
        !          12961: right,hand, screw, rotational, motion,direction,vector,rule,product,rules
        !          12962: righthand,rotation,positive,component,force,product,rotates,field,magnetic,perpendicular,wire,loop
        !          12963: torque,motion,coil,lorentz,force,rotational,field,magnetic,perpendicular,velocity,wire,loop,currentcarrying,mechanical
        !          12964: current,magnitude,torque,forces,external,coil,field,magnetic,loop
        !          12965: current,magnitude,torque,direction,forces,coil,force,rotates,field,magnetic,wire,loop
        !          12966: current,parallel,direction,charges,coil,angle,force,plane,moving,field,magnetic,loop
        !          12967: currents,current,charges,force,moving,charge,velocity
        !          12968: Rectangular,torque,current,motors,coil,Loop,loop,Current
        !          12969: 
        !          12970: parallel,magnitude,vectors,rotation,vector,commute,cross,product,field,perpendicular
        !          12971: vectors,components,vector,component,cross,unit,product,determinant
        !          12972: cross,rotational, right, hand, screw,direction,vector,product
        !          12973: mutually,vector,attractive,electron,charge,perpendicular,numerical
        !          12974: electric,parallel,currents,lorentz,force,field,magnetic,fields
        !          12975: total,charges,force,charge
        !          12976: electric,parallel,circular,currents,magnitude,motion,charges,orbit,forces,force,velocities,field,magnetic,wires,charge,fields
        !          12977: current,forces,field,magnetic,wires,charge,fields,parallel,currents
        !          12978: electric,currents,magnet,field,magnetic,fields,loop
        !          12979: electric,forces,gravitation,force,field,magnetic,charge,compared,gravitational
        !          12980: forces,Wires,magnetic,wires,Current,between,parallel,currents,current,Force,force,Carrying,wire,carrying,currentcarrying
        !          12981: 
        !          12982: electric,charged,momentum,forces,violation,violated,law,field,magnetic,charge,fields,particles,newtons
        !          12983: Ampere,Laplace,Biot-Savart,current,amperelaplacebiotsavart,forces,force,resultant,field,magnetic,fields,loop
        !          12984: current,savart,laplace,currents,amperelaplacebiotsavart,biot,force,field,magnetic,wire,fields,ampere,loop
        !          12985: current,circular,amperelaplacebiotsavart,field,magnetic,loop
        !          12986: current,circular,currents,vectors,amperelaplacebiotsavart,force,field,magnetic,wires,wire,loop
        !          12987: current,point, charge,savart,laplace,circular,amperelaplacebiotsavart,biot,pointcharge,wire,ampere,loop
        !          12988: electric,Biot,Ampere,field,magnetic,Savart,Laplace
        !          12989: element,Biot,current,Law,force,Ampere,field,magnetic,Savart,Laplace
        !          12990: point,circular,current,delta,dirac,pointcharge,field,function,magnetic,charge,loop
        !          12991: current,parallel,two,force,wires,wire,carrying,currentcarrying
        !          12992: 
        !          12993: current,electric,savart,laplace,integral,currents,amperelaplacebiotsavart,biot,spacepoint,law,formula,ampere
        !          12994: point,coulombs,surface,Law,Coulomb,gausss,spherical,law,charge
        !          12995: outside,electric,uniform,distribution,sphere,spherical,inside,field,charge
        !          12996: gauss,s, Gauss's,capacitors,electric,gaussiansurface,surface,sheet,cylinder,distribution,potentials,line,capacitance,planar,coaxial,law,field,charge,fields,gaussian
        !          12997: gauss,s, Gauss's, gaussian, Gaussian,electric,parallel,volume,surface,charged,line,distance,plane,gausss,lines,field,plates,charge,perpendicular,linear,density
        !          12998: distribution,electric,parallel,cylindrical,cable,surface,sheet,line,distributions,gausss,coaxial,law,field,charge,linear,gaussian,density
        !          12999: electric,Gauss,law,field
        !          13000: electric,cylindrical,surface,line,symmetry,Gaussian,field,charge,linear,symmetric,density
        !          13001: electric,cable,surface,cylinder,coaxial,field,charge,density
        !          13002: density,electric,parallel,densities,surface,Charge,Sheets,field,charge,sheets,Parallel
        !          13003: electric,battery,surface,field,plates,charge,density
        !          13004: capacitors,electric,parallel,plate,volume,air,densities,surface,potential,electrostatic,capacitor,energy,distance,capacitance,field,plates,charge,density
        !          13005: difference,parallel,plate,surface,potential,earth,capacitor,charge,density
        !          13006: difference,parallel,circular,plate,air,surface,charged,potential,earth,capacitor,charges,capacitance,field,plates,charge,voltage,density
        !          13007: capacitors,surface,charged,potential,uniform,field,charge,density
        !          13008: capacitor
        !          13009: electric,microscopic,layer,surface,Gauss,Charge,field,charge,Layer
        !          13010: difference,of,layer,potential,uniform,function,charge,test,density
        !          13011: insulator,electric,parallel,insulating,metallic,capacitor,capacitance,field,plates
        !          13012: 
        !          13013: solution
        !          13014: capacitors,electric,parallel,plate,dielectric,conservation,equivalent,constant,potential,capacitor,energy,capacitance,circuit,field,plates,charge,series
        !          13015: parallel,plate,dielectric,constant,capacitor,capacitance,plates
        !          13016: capacitors,parallel,stored,separation,plate,dielectric,air,equivalent,surface,constant,charged,potential,capacitor,energy,exam,capacitance,metal,circuit,capacitances,plates,charge,series,voltage,electrical,work
        !          13017: model,capacitors,electric,parallel,stored,plate,dielectric,dielectrics,charged,insulators,capacitor,energy,capacitance,series,fields,atomic
        !          13018: electronic,parallel,plate,current,capacitor,circuits,energy,capacitance,plates,voltage,circuitry
        !          13019: electric,parallel,cylindrical,stored,plate,relation,current,capacitor,farad,capacitance,gausss,gauss,field,volt,plates,charge,store,voltage
        !          13020: capacitors,parallel,stored,potential,capacitor,energy,charge,series,work
        !          13021: electric,parallel,model,plate,dielectric,table,constant,capacitor,with,breakdown,properties,field,atomic,insulator
        !          13022: 
        !          13023: capacitors,dielectric,constant,capacitor,capacitance
        !          13024: circular,momentum,motion,orbit,mass,field,conserved,angular,orbital,gravitational,laws,conservation,mirror,physics,satellite,force,graph,velocity,derivation
        !          13025: momentum,orbit,position,unit,angular,laws,conservation,graphs,speed,satellite,exam,graph,velocity
        !          13026: circular,orbit,velocities,law,field,graphs,mirror,force
        !          13027: circular,si,direction,center,trajectory,reference,vector,positive,earth,motion,orbit,digits,distance,negative,mass,position,law,field,angular,gravitational,fields,solution,degrees,constant,newtons,square,speed,satellite,force,graph,velocity,units,derivation
        !          13028: radius,circular,center,trajectory,number,momentum,vector,torques,earth,orbit,period,distance,position,velocities,focus,law,field,conserved,angular,thin,isolated,light,graphs,constant,speed,mirror,external,satellite,force,graph,states,fat,velocity
        !          13029: field,force
        !          13030: field,equivalent,mirror,force,plane
        !          13031: polar,orbit,angle,field,square,force,loop
        !          13032: orbit
        !          13033: error,black,color,length,height,engine,string,image,loop
        !          13034: 
        !          13035: error,black,color,length,height,engine,string,image,loop
        !          13036: 
        !          13037: error,period,black,color,length,height,engine,string,image,loop
        !          13038: 
        !          13039: error,black,color,length,height,engine,string,image,loop
        !          13040: 
        !          13041: momentum,motion,energy,law,field,angular,gravitational,fields,conservation,potential,square,body,force,derivation
        !          13042: momentum,energy,law,angular,conservation,potential
        !          13043: amperes,law,toroid
        !          13044: current,solenoids,conductor,vector,toroids,amperes,law,field,magnetic,fields,density,toroid,integral,currents,wire,solenoid
        !          13045: conductor,line,field,magnetic,integral,conducting,wire
        !          13046: circular,conductor,line,amperes,field,magnetic,wires,density,parallel,cylindrical,conducting,plane,coaxial,conductors,wire,loop
        !          13047: conductor,area,cylinder,amperes,law,field,magnetic,density,toroid,infinite,surface,conducting,plane,wire,solenoid
        !          13048: Ampere,law,field,magnetic
        !          13049: line,amperes,rule,field,magnetic,right,integral,currents,current,surface,constant,hand,force,gausss
        !          13050: finite,conductor,cylinder,field,magnetic,cylindrical,infinite,current,plane,wire
        !          13051: field,magnetic,toroid,solenoid,toroidal
        !          13052: cylinder,Ampere,density,current,surface,conducting,hollow
        !          13053: 
        !          13054: current,line,amperes,law,density,toroid,solenoid
        !          13055: component,line,perpendicular,path,integral,tangent
        !          13056: normal,nonplanar,line,amperes,plane,planar,projection
        !          13057: energy,power, time, voltage, resistance,powervoltageresistance,average,energypowertime,cycle,half,sine
        !          13058: faraday,henry,lenzs,induced,static,line,amperes,law,field,magnetic,power,fields,currents,potential,flux,uniform,voltages,force,voltage
        !          13059: library,reserve,readings
        !          13060: faraday,henry,tangential,electric,difference,induced,vector,component,average,field,magnetic,perpendicular,constant,potential
        !          13061: difference,tangential,radius,electric,circular,induced,direction,average,dissipation,law,field,magnetic,power,perpendicular,tesla,work,degrees,potential,square,uniform,loop
        !          13062: faraday,henry, self, inductance,induction,integrand,induced,positive,rate,faradayhenry,field,change,magnetic,power,transferred,flux,voltage,loop
        !          13063: difference,integrand,induced,magnetic,power,transferred,induce,potential,flux,voltage
        !          13064: difference,induction,induced,field,magnetic,integral,potential,flux,lorentz,force,loop
        !          13065: time,changing, surface, integrated,surfaceintegrated,timechanging,faradayhenry,law,coil,Faraday,Henry
        !          13066: time,changing,difference,induction,induced,Lenz,Law,magnetic,potential
        !          13067: induction,torus,magnetic,inductance,units,solenoid,henry
        !          13068: 
        !          13069: faraday,henry, self,difference,lenzs,induction,induced,faradayhenry,inductor,inductance,potential,flux,voltage
        !          13070: self,current,cable,induced,energy,amperes,inductor,inductance,toroid,stored,circuit,coaxial,voltage,solenoid,toroidal,henry
        !          13071: library,unit,reserve,readings
        !          13072: vocabulary
        !          13073: 
        !          13074: cable,energy,flux,coaxial,inductive,solenoid,toroidal
        !          13075: inductance,toroid,solenoid,henry
        !          13076: net,magnetic,inductor,inductance,toroid,self,permeability,inductors,solenoid,toroidal
        !          13077: self,current,cable,inductance,flux,coaxial,electrical,loop
        !          13078: current,dissipated,electric,induced,energy,field,magnetic,inductor,charge,power,work,drop,circuits,circuit,inductive,voltage,flow,inductors
        !          13079: 
        !          13080: self,selfinductance,cable,inductor,inductance,dielectric,coaxial,henry
        !          13081: angle,tangent
        !          13082: graphic,graphics
        !          13083: radius,rings,area,charge,ring,series
        !          13084: electric,circular,charges,distribution,charge,linear,density,volume,surface,potential,electrostatic,continuous,uniform
        !          13085: line,charge,potential
        !          13086: center,distribution,line,charge,density,surface,potential
        !          13087: superposition,charges,potentials,charge,linear,volume,surface,potential,distributions
        !          13088: electric,distribution,charge,work,potential,continuous
        !          13089: discrete,collection,charges,distribution,potentials,charge,electrostatic
        !          13090: discrete,circle,distribution,charge,continuous
        !          13091: electric,superposition,charges,distribution,potentials,charge,linear,potential,electrostatic,distributions
        !          13092: distribution,line,charge,linear,volume,surface
        !          13093: 
        !          13094: charges,distribution,uniformly,charge,linear,density,volume,surface,potential,uniform,distributions
        !          13095: current,electric,drift,charged,conductor,charges,valence,charge,currents,particles,lorentz,velocity,electrons,conduction,electrical
        !          13096: 
        !          13097: drift,hall,effect,lorentz,force,velocity
        !          13098: drift,charges,field,magnetic,charge,hall,velocity
        !          13099: equilibrium,field,charge,perpendicular,density,hall,independent,lorentz,force,carrier,velocity,voltage
        !          13100: drift,hall,effect,velocity
        !          13101: equilibrium,field,magnetic,hall,effect,lorentz,force,velocity,voltage
        !          13102: current,equilibrium,Hall,density,hall,currents,constant,velocity,voltage
        !          13103: 
        !          13104: current,drift,Hall,hall,Constant,holes,constant,electron,velocity
        !          13105: vacuum,battery,internal,resistance,resistors
        !          13106: transmission,capacitance,waves,inductor,inductance,battery,capacitor,resistance,velocity,conduction,resistor
        !          13107: magnetic,susceptibility,dielectric,battery,constant,internal,resistance,voltage
        !          13108: current,cable,transmission,conductor,capacitance,coefficient,waves,magnetic,wave,inductance,dielectric,battery,constant,speed,resistance,coaxial,conductors,voltage
        !          13109: current,propagation,conductor,energy,capacitance,waves,inductance,stored,battery,resistance,circuit,velocity,voltage
        !          13110: drift,transmission,line,velocity
        !          13111: current,circuit,voltage
        !          13112: cable,propagation,transmission,energy,capacitance,inductance,battery,velocity
        !          13113: capacitors,reflected,ohms,direction,coulombs,transmission,conductor,positive,line,coefficient,law,volt,waves,cycle,wave,resistances,volts,battery,ideal,interfere,circuits,reflection,resistance,circuit,lines,ratio,conductors,velocity,voltage,resistor,ohm
        !          13114: transmission,conductor,line,capacitance,light,inductance,air,speed,resistance,groundtosatellitetoground,velocity,derivation,transmissions
        !          13115: 
        !          13116: 
        !          13117: black,color,engine
        !          13118: 
        !          13119: induced,equilibrium,oscillation,period,position,inductor,work,absorber,spring,constant,potential,force,resistance,circuit,velocity,phase,voltage,shock,electrical,resistor,contraction,mechanical
        !          13120: capacitance,inductance, resistance,oscillation,circuits,circuit,series,oscillations,mechanical
        !          13121: oscillator,components,motion,inductor,charge,potential,harmonic,capacitor,circuits,graph,circuit,series,voltage,mechanical
        !          13122: capacitors,selfinductances,circuits,circuit,series,resistors
        !          13123: ohms,law,inductor,charge,work,potential,capacitor,circuits,circuit,series,voltage,resistor
        !          13124: oscillator,capacitance,charge,stored,spring,potential,capacitor,displacement,circuits,force,circuit,series,mechanical
        !          13125: capacitors,electric,equilibrium,motion,oscillation,period,kinetic,dissipation,displaced,energy,position,sinusoidal,inductor,friction,stored,spring,potential,harmonic,capacitor,circuits,resistance,series,oscillations,electrical,mechanical
        !          13126: circuits,series
        !          13127: 
        !          13128: chargecurrent,charge,voltagecurrent,circuit
        !          13129: 
        !          13130: dc,dcdriven,circuit,series
        !          13131: dc,emf,period,inductor,dcdriven,capacitor,circuit,series,voltage,resistor
        !          13132: capacitor,capacitance, inductor, inductance, resistor, resistance,circuits,circuit,series
        !          13133: 
        !          13134: charges,distribution,symmetry,surfaces,charge,cylindrical,equimagnitude,surface,spherical,planar,symmetric
        !          13135: 
        !          13136: point,concentric,shells,sphere,charge,parallel,infinite,shell,sheet,spheres,spherical
        !          13137: direction,point,electric,cylinder,sphere,surfaces,field,charge,fields,cylindrical,surface,uniform,directions
        !          13138: electric,charges,charge
        !          13139: electric,direction,Rule,Field,rule,field,Direction
        !          13140: cylinders,finite,cylinder,distribution,symmetry,charge,density,cylindrical,infinite,sheet,uniform,plane,distributions,spherical
        !          13141: point,electric,magnitude,distribution,field,charge,Equi,Surface,cylindrical,equi,infinite,surface,Magnitude
        !          13142: 
        !          13143: equi,magnitude,electric,translation,center,longitudinal,symmetry,invariant,bisect,field,fields,translations,cylindrical,surface,plane,spherical,rotational,planar
        !          13144: differentiate
        !          13145: sinusoidal,capacitance, inductance,sinusoidallydriven,sinusoidallyvarying,power,equivalent,potential,resonance,circuits,resistance,circuit,series,phasor,phase,frequency
        !          13146: 
        !          13147: steady,state, time,steadystate,average,dissipation,angle,power,integral,potential,transient,resonance,circuit,spectrums,timeaverage,phase
        !          13148: resonances,LRC,resonance,driven,frequency
        !          13149: driving,sinusoidal, varying, steady, state,oscillating,sinusoidallyvarying,amplitude,steadystate,inductor,independent,potential,capacitor,transient,resistance,circuit,drops,series,phase,voltage,resistor
        !          13150: steady,state,phasors,steadystate,vector,inductor,charge,independent,constant,diagram,capacitor,voltages,coefficients,circuit,diagrams,phasor,phase,voltage,resistor
        !          13151: time,average,period,dissipation,angle,power,integrating,integral,circuit,timeaverage,phase,voltage
        !          13152: full,resonances,frequencies,maximum,resonant,average,narrow,power,height,half,resonance,width,resistance,spectrums,voltage,frequency,spectrum
        !          13153: 
        !          13154: differentiate
        !          13155: vectors,rotates,cycle,diagram,Phasor,diagrams,phasor,rotate
        !          13156: average,hypotenuse,half,circuit,cycles
        !          13157: current,axon,ohms,responses,law,stimuli,potential,resistance,threshold,response,voltage,conduction
        !          13158: axon,axoplasm,conductance,resistance,membrane
        !          13159: current,axon,components,action,potential,passive,resistance,circuit,neurons,voltage,conduction,electrical
        !          13160: axon,messenger,cells,chemical,neuron,action,cell,potential,passive,body,dendrites,neurons,response
        !          13161: long,current,nerves,axon,longitudinal,position,unit,nerve,resistances,parallel,surface,potential,drop,resistance,circuit,membrane,voltage,conduction,electrical,ohm
        !          13162: 
        !          13163: equivalent,potential,resistance,circuit,ladder,derivation,conduction
        !          13164: positive,negative,string
        !          13165: derivative,derivatives,electromagnetic,magnetic,partial,wave,waves
        !          13166: plane,polarized,curl,divergence,electric,electromagnetic,field,fields,gradient,magnetic,maxwells,momentum,monochromatic,planepolarized,polarization,propagation,vector,vectors,wave,wavelength,waves
        !          13167: space,time, plane,,components,electric,electromagnetic,field,fields,frequency,magnetic,maxwells,planepolarized,polarized,spacetime,wave
        !          13168: components,electric,electromagnetic,field,fields,frequency,hz,magnetic,maxwells,monochromatic,plane,polarization,polarized,propagate,propagates,spacetime,vacuum,vector,wave,wavelength,waves
        !          13169: charge,curl,derivatives,electromagnetic,gradient,monochromatic,operator,partial,proof,radio,transmitter,vector,waves
        !          13170: derivative,derivatives,displacement,electric,integral,magnetic,medium,partial,vacuum,vector,vectors,wave,waves
        !          13171: derivative,derivatives,displacement,gradient,integral,medium,partial,propagate,propagates,propagation,vacuum,vector,vectors,wave,waves
        !          13172: space,cartesian,curl,divergence,function,gradient,operates,point,points,scalar,spacepoint
        !          13173: ampere,laplace, biot, savart,Equations,Maxwell,amperelaplacebiotsavart,amperes,integral
        !          13174: equation,polarized,angular,electromagnetic,frequencies,magnetic,monochromatic,plane,planepolarized,polarization,radio,transmitter,wave
        !          13175: 
        !          13176: polarized,circular,electric,electromagnetic,field,frequency,monochromatic,motion,plane,planepolarized,polarization,rotates,vector,wavelength,wavelengths,waves
        !          13177: cross,product,curl,determinant
        !          13178: component,electromagnetic,identity,proof,vector,waves
        !          13179: current,amplitude,density,electric,electromagnetic,energy,field,incident,radiation,wave
        !          13180: current,charge,density,electric,electromagnetic,frequency,intensity,magnetic,momentum,wave,waves
        !          13181: electric,electromagnetic,field,force,incident,intensity,momentum,plane,radiation,wave,waves
        !          13182: wave,current,absorption,density,electromagnetic,energy,fields,pressure,reflection,static,waves
        !          13183: electromagnetic,energy,light,momentum,pressure,speed,transport,wave,waves
        !          13184: capacitor,discharged,energy,field,fields,static
        !          13185: absorption,current,density,electromagnetic,energy,momentum,pressure,reflection,wave
        !          13186: 
        !          13187: current,density,electric,energy,magnetic,momentum
        !          13188: binding,electron,energy,kinetic,photon,photons,proton,wavelength
        !          13189: electric,current, magnetic, time, average, intensity,colors,electromagnetic,frequency,photon,photons,radiation,spectrum
        !          13190: radiation,collision,electromagnetic,frequency,momentum,photon,spectrum,wavelength
        !          13191: atom,color,electron,energy,frequency,hydrogen,kinetic,light,momentum,photon,photons,power,proton,radiation,radio,transition,ultraviolet,wavelength
        !          13192: metric,annihilation,creation,energy,light,momentum,particle,particles,photon,photons,region,regions,spectrum,speed,visible
        !          13193: annihilated,creation,electromagnetic,energy,mechanics,momentum,optical,quantum,relativistic,speed
        !          13194: absorbers,frequency,nano,photon,photons,radio,spectrum,visible,wavelength,wavelengths
        !          13195: radiation,absorbed,absorption,accelerations,acoustic,antenna,charged,electrons,frequency,particle,particles,photon,photons,protons,radiations,wavelength
        !          13196: atomic,energy,ev,frequency,momentum,nuclear,particle,plancks,properties,wave,wavelength
        !          13197: 
        !          13198: femtometer,picometer,nanometer,micrometer,micron,millimeter,meter,kilometer,megameter,gigameter,terameter,petameter
        !          13199: chromaticity,ground,helium,hydrogen,ionized,jumps,photons,quantum,state
        !          13200: interpolation,interpolate,spectrum,visible
        !          13201: atomic,chromaticity,color,diagram,energy,excited,frequency,ground,ion,ionization,level,number,principle,quantization,quantum,spectrometer,state,system,systems,tristimulus,wavelength,wavelengths
        !          13202: atomic,chromaticity,diagram,energy,excited,ground,helium,hydrogen,ion,ionized,level,levels,number,phosphor,photon,photons,quantum,wavelength,wavelengths
        !          13203: chromaticity,absorption,atomic,energy,frequencies,hydrogen,ions,level,levels,optical,spectra,spectrum
        !          13204: energy,levels,photon,photons,quantization,spectra,states
        !          13205: table,atomic,electron,electrons,hydrogen,hydrogenlike,ion,ions,number,periodic,proton,protons
        !          13206: atomic,continuum,corrections,diagram,energy,excited,formula,ground,level,levels,number,quantized,quantum,relativistic,state,states,system
        !          13207: absorption,atom,collisions,emission,emitted,excitation,excitations,excited,frequencies,frequency,hydrogen,jump,jumps,optical,photon,photons,quantum,spectrometers,spectroscopy,spectrum,state,states,ultraviolet
        !          13208: 
        !          13209: hydrogen,atomic,bound,diagram,electron,electrons,energy,excited,ion,ionization,ionized,jump,level,levels,number,oneelectron,particle,particles,principal,protons,quantization,quantized,quantum,spectrometer,state,states,transition
        !          13210: absorber,black,body,chromaticity,emittance,emitter,optical,plancks,pyrometer,spectral,spectrum
        !          13211: black,body,radiates
        !          13212: 
        !          13213: black,body,chromaticity,coordinates,radiated,radiates,radiation,radiator
        !          13214: chromaticity,color,correlation,diagram,emission,emittance,emitter,ideal,mechanism,optical,pyrometer,spectral,spectrum,temperature,tristimulus
        !          13215: radiation,radiator,black,body,emission,mechanics,plancks,quantum
        !          13216: black,blackbody,blacksmith,body,color,colors,emission,emit,emitted,emitter,filament,incandescent,mechanism,spectrum,temperature,tungsten
        !          13217: emittance,incandescent,optical,plancks,pyrometer,radiant,radiated,radiating,radiation,spectra,spectral,spectrum
        !          13218: diagram,blackbody,chromaticity,curve,curves,diagrams,distributions,emitter,spectra,spectral,tristimulus
        !          13219: 
        !          13220: absorb,absorber,absorbs,black,body,distribution,electromagnetic,emits,emitted,emitter,energy,ideal,incandescent,optical,plancks,power,pyrometer,spectra,spectral,watts,wavelength,wavelengths
        !          13221: tristimulus,values
        !          13222: chromaticity,diagram
        !          13223: angle,angles,diagram,incidence,incident,prism,ray,rays,reflected,reflection,refracted,refraction,snells,tangent
        !          13224: angle,critical,geometrical,geometry,incidence,internal,optics,ray,rays,reflection,refraction
        !          13225: incident,index,reflected,refracted,refraction,snells,traverses
        !          13226: normal,apex,incidence,incident,index,prism,prisms,ray,rays,reflected,reflection,refracted,refraction,snells,spectrum,traverses,white
        !          13227: detector,geometrical,light,nonhomogeneous,optics,reflection,refraction,snells
        !          13228: bending,emission,emit,emits,geometric,geometrical,homogeneous,light,lights,luminous,media,medium,nonhomogeneous,optics,photon,photons,reflected
        !          13229: bend,bending,bends,detector,detectors,diode,emission,emitted,mirage,mirages,ray,rays,snells,source,sources
        !          13230: angle,bend,bending,incidence,incident,index,refracted,refraction,snells
        !          13231: internal,reflected,reflection,reflectivity,total
        !          13232: angle,incident,light,rays,reflected,refracted,snells
        !          13233: 
        !          13234: angle,critical,geometrical,incidence,incident,index,internal,optics,ray,rays,reflected,reflection,refracted,refraction,snells,total
        !          13235: real,image,virtual
        !          13236: aberration,axis,center,concave,convex,curvature,descartes,focal,magnification,mirror,mirrors,paraxial,point,principal,radius,spherical
        !          13237: concave,convex,descartes,image,object
        !          13238: real,concave,convex,descartes,focal,image,mirror,mirrors,object,paraxial,point,spherical,virtual
        !          13239: object,concave,convex,descartes,focal,image,nonplanar,point,principal,rays,spherical
        !          13240: concave,convex,image,mirror,mirrors,nonplanar,object,objects,spherical
        !          13241: axis,curvature,focal,parallel,principal,ray,rays,reflection
        !          13242: object,aberration,axis,focus,image,images,magnification,objects,paraxial,principal,spherical
        !          13243: real,Descartes,concave,convex,descartes,focal,image,images,inverted,length,paraxial,planar,point,spherical
        !          13244: focal,paraxial,point,principal,ray,rays
        !          13245: 
        !          13246: aberration,axis,center,central,concave,convex,curvature,descartes,focal,length,mirror,parallel,paraxial,point,principal,ray,rays,spherical
        !          13247: aberration,aperture,exact,paraxial,ray,rays,spherical
        !          13248: Descartes,descartes,paraxial
        !          13249: concave,converging,convex,descartes,diverging,focus,image,object,virtual
        !          13250: real,convex,erect,index,inverted,refraction,virtual
        !          13251: concave,real,converging,convex,curvature,diverging,focal,foci,focus,image,images,index,magnification,point,points,radius,refraction,virtual
        !          13252: real,point,concave,convex,descartes,focal,formation,image,images,magnification,points,virtual
        !          13253: image,index,object,reflection,refraction
        !          13254: index,real,concave,convex,image,images,indexes,paraxial,point,refracted,refracting,refraction,snells,virtual
        !          13255: central,converge,converging,descartes,diverge,diverging,focal,foci,image,images,magnification,object,point,points,principal,ray,rays,refracted,refracting,refraction,refractive
        !          13256: 
        !          13257: concave,convention,converging,convex,curvature,diverging,image,object,optics,sign
        !          13258: Descartes,descartes,paraxial,snells
        !          13259: height,image
        !          13260: image,object
        !          13261: real,converging,descartes,diverging,erect,focal,image,inverted,length,lens,object,thin,virtual
        !          13262: concave,index,lens,refraction,thin,virtual
        !          13263: double,real,concave,converging,convex,curvature,diverge,diverging,erect,focal,image,inverted,length,magnification,object,radii,radius,virtual
        !          13264: point,real,converging,descartes,diverging,focal,length,lens,points,thin,virtual
        !          13265: descartes,glass,lens,plastic,refraction,thin
        !          13266: ray,image,images,index,object,objects,paraxial,rays,refraction
        !          13267: lens,converging,diverging,focal,image,length,lenses,object,point,points,thin
        !          13268: converging,diverging,focal,lens,principal,ray,rays,unrefracted
        !          13269: point,converging,diverging,image,images,lens,magnification,object,objects,point,points,real,virtual
        !          13270: image,lens,object
        !          13271: 
        !          13272: real,converging,descartes,diverging,focal,formula,image,length,lens,lensmakers,object,point,thin,virtual
        !          13273: Descartes,descartes,image,images,index,object,refraction
        !          13274: 
        !          13275: color
        !          13276: brightness,chromaticity,cones,coordinates,diagram,hue,saturation,spectral,spectrum,tristimulus,wavelength
        !          13277: 
        !          13278: chromaticity,coordinates,tristimulus
        !          13279: chromaticity,coordinates,saturated,tristimulus
        !          13280: helmholtz,brightness,chromaticity,cie,cones,diagram,hue,mixing,saturation,wavelength,wavelengths,young,younghelmholtz
        !          13281: young,helmholtz,brightness,chromaticity,cie,color,colorimeter,wavelengths
        !          13282: Helmholtz,Young,color,cone,cones,eye,respond,responds,response,retina,retinal,stimulus,tristimulus,wavelength,wavelengths
        !          13283: Chromaticity,Diagram,brightness,chromaticity,cie,coordinates,diagram,single,tristimulus,wavelength,wavelengths
        !          13284: computational,algebraic,chromaticity,diagram,mixing,mixture,pure,ray,rays,wavelength,wavelengths
        !          13285: RGB,brightness,chromaticity,color,colors,hue,intensity,monitor,phosphor,phosphors,rgb,saturation,white
        !          13286: 
        !          13287: black,brightness,chromaticity,color,colors,components,cones,coordinates,hue,phosphors,rgb,saturated,saturation,spectral,spectrum,tristimulus,wavelength,wavelengths,white
        !          13288: pure,tri stimulus, wavelength, coordinates,chromaticity,color,purecolor,values
        !          13289: 
        !          13290: chromaticity,coordinates,distribution,distributions,tristimulus,wavelength
        !          13291: chromaticity,coordinates,integrated,intensities,light,lights,response,wavelength
        !          13292: chromaticity,coordinates,integrated,intensities,light,lights,response
        !          13293: response,light,chromaticity,coordinates,digitization,intensity,responses,tristimulus
        !          13294: chromaticity,coordinates,distribution,distributions,eye,human,light,spectral,spectrum,sunlight
        !          13295: chromaticity,cone,coordinates,distribution,distributions,incoming,intensity,light,response,responses,spectral,tristimulus
        !          13296: constant,width,band,bands,center,chromaticity,colors,continuous,coordinates,digitization,distribution,intensities,intensity,light,point,rectangular,response,responses,spectral,sunlight,tristimulus
        !          13297: 
        !          13298: chromaticity,coordinates,grass,human,intensity,reflectance,reflectivity,skin,summer,sunlight,tristimulus,value,values,wavelength
        !          13299: simultaneously,emitted,roots,square,squaring
        !          13300: phasor,velocity,angular,central,coherent,constructive,destructive,difference,disturbance,interference,maximum,minimum,path,pattern,phase,source,sources,wave,waves
        !          13301: crest,disturbance,intensity,maximum,minimum,synchronized,wave,wavelength,wavelengths
        !          13302: single,phasor,constructive,destructive,disturbance,disturbances,frequencies,frequency,hyperbola,hyperbolas,interference,phase,singlefrequency,speaker,speakers,synchronized,wave,wavelength,wavelengths,waves
        !          13303: rotating,vectors, phasor, spherical, waves, disturbance,difference,intensities,intensity,maxima,maximum,minima,minimum,path,phase,sources,synchronized,wave
        !          13304: material,dead,interference,light,pattern,source,sources,spots,synchronized,synchronous,wave
        !          13305: amplitude,amplitudes,between,difference,phase,phases,resultant,resulting,sources,synchronized,synchronous,trigonometric,two,wave,waves
        !          13306: amplitude,difference,differences,extremas,interference,maximum,minimum,spherical,wave,waves
        !          13307: Experiment,Interference,Slit,Two,Young,central,coherent,cylindrical,experiment,huygens,interference,maxima,maximum,minima,minimum,order,s,slit,slits,sources,spherical,wave,waves,young,youngs
        !          13308: 
        !          13309: phasor,central,coherent,constructive,destructive,interference,maxima,maximum,minima,minimal,order,pattern,patterns,phase,sources,synchronized,wave
        !          13310: time,Averaged,Intensity,Time,average,averaged,averaging,disturbance,intensities,intensity,wave,waves
        !          13311: minimum,radian,cartesian,coordinate,intensity,maxima,maximum,minima,phase,phasor,phasors,radians,radio,receivers,source
        !          13312: angle,angular,intensity,interferometer,interferometry,maxima,minima,node,phase,phasor,polar,radio,resultant,sensitivity,telescope,zenith
        !          13313: antennas,array,interferometer,phase,phasor,phasors,radio,receiver,receivers
        !          13314: array,fronts,graph,interferometer,linear,phasor,phasors,polar,ratio,receiver,receivers,resultant,wave,waves,zenith
        !          13315: telescope,receiver,antenna,antennas,array,astronomy,coherent,difference,intensity,interferometer,interferometry,jansky,linear,maxima,minima,path,phase,phasors,radio,receivers,sources,telescopes
        !          13316: andromeda,bell,dust,fluorescence,galaxies,galaxy,interference,interferometer,interferometry,interplanetary,jansky,labs,optical,pattern,radio,space,telescope,telescopes,waves
        !          13317: coherent,delta,difference,intensities,intensity,interference,interfering,maxima,maximum,minima,minimum,path,phase,phases,phasor,phasors,radians,sources
        !          13318: amplifier,angle,angles,angular,antenna,antennas,incident,intensity,interferometer,interferometry,node,phase,phasor,phasors,radio,readout,receiver,receivers,segment,sensitivity,wave,youngs
        !          13319: minimum,angular,antenna,array,central,displacement,focus,intensity,interference,maxima,maximum,minima,phase,radio,receivers,resolve,sensitivity,signals,telescope,zenith
        !          13320: 
        !          13321: antenna,receivers, reciever,,angle,angular,extraterrestrial,interferometer,interferometry,meridian,node,radio,sensitivity,source,zenith
        !          13322: 
        !          13323: 
        !          13324: alternate,alternating,angle,angles,interior,law,reflection,vertical
        !          13325: angle,geometrical,image,images,incidence,magnification,optics,parallel,planar,plane,reflected,reflection,tracing,virtual
        !          13326: diagram,incident,mirror,mirrors,plane,ray,reflected
        !          13327: image,images,incident,object,planar,plane,point,ray,rays,reflected,reflection
        !          13328: incident,reflected, real,image,images,incidence,mirror,mirrors,object,objects,planar,plane,reflection,virtual
        !          13329: geometrical,mirror,mirrors,optics,reflection
        !          13330: angle,angles,front,fronts,incidence,incident,ray,rays,reflected,reflecting,reflection,spherical,wave,waves
        !          13331: converge,diverge,diverging,image,images,mirror,mirrors,object,objects,planar,plane,real,reflected,reflection,virtual
        !          13332: graphical,graphically,image,images,parallel,point,points,ray,rays,reflected,reflecting,reflection
        !          13333: 
        !          13334: real,angle,converging,diverging,divert,geometrical,image,incidence,incident,magnification,optical,optics,parallel,planar,plane,ray,rays,reflected,reflecting,reflection,tracing,virtual
        !          13335: camera,cameras,eye,eyepiece,far,fixed,focus,focusing,glass,hypermetropia,image,magnification,magnifying,microscope,microscopes,myopia,near,nerve,objective,optic,pinhole,retina,variable,variablefocus
        !          13336: 
        !          13337: fixed,variable, focus, far,camera,eye,fixedfocus,glass,image,inverted,magnification,magnifying,mechanism,near,pinhole,point,variablefocus
        !          13338: camera,fixed,focus,hole,pin,pinhole,variable
        !          13339: bifocals,camera,cameras,eye,eyes,far,film,fixed,focal,hypermetropia,image,images,invert,inverted,length,myopia,near,point,points,retina,retinal,spherical,trifocals,upright
        !          13340: far,focal,glass,magnification,magnifier,magnifiers,magnifying,near,point
        !          13341: real,power,eyepiece,image,images,invert,inverted,magnification,magnified,magnifier,magnifiers,magnifying,microscope,object
        !          13342: far,variable,camera,cameras,eyepiece,factor,fixed,focus,glass,hypermetropia,image,magnification,magnified,magnifier,magnifying,myopia,near,nerve,objective,optic,pinhole,point,retina,retinal
        !          13343: 
        !          13344: chromaticity,diagram,distribution,illuminance,illuminating,light,reflectance,spectral,tristimulus,wavelength
        !          13345: chromaticity,cie,coordinates,illuminance,reflectance,spectral,tristimulus
        !          13346: chromaticity,colors,coordinates,data,illuminance,objects,perceived,reflectance,reflective,spectral,tristimulus
        !          13347: absorbs,chromaticity,color,colors,coordinates,diagram,illuminance,opaque,perceive,perceived,perception,pure,reflect,reflectance,wavelength
        !          13348: cie,data,distribution,energy,illuminance,illuminating,prism,pure,reflectance,reflectances,reflected,response,responses,spectral,standard,wavelength,wavelengths,white
        !          13349: chromaticity,cie,color,colors,coordinates,distribution,energy,illuminance,intensities,intensity,observer,reflected,standard,stimuli,stimulus,tristimulus
        !          13350: 
        !          13351: cie,illuminance,intensities,intensity,observer,power,radiant,reflectance,response,spectral,standard
        !          13352: wavelength,Chromaticity,Diagram,chromaticity,cie,diagram,pure,wavelengths
        !          13353: grass,illuminannces,ref,refl,reflectance,sand,sea,skin,spectral,tristimulus,values,wavelength
        !          13354: counting,integral,integrals,integration,numerical,square,squares
        !          13355: 
        !          13356: 
        !          13357: 
        !          13358: heres,body
        !          13359: round,figures,density,rounding,rounded,significant
        !          13360: round,figures,density,rounding,rounded,significant
        !          13361: 
        !          13362: 
        !          13363: 
        !          13364: 
        !          13365: heres,body
        !          13366: 
        !          13367: 
        !          13368: 
        !          13369: high,school,deviation,standard,chem,prelaboratory,significant,measurements,mean
        !          13370: 
        !          13371: round,figures,density,rounding,rounded,significant
        !          13372: deviation,standard,chem,sure,prelaboratory,significant,measurements,laboratory,high,school,mean
        !          13373: round,figures,liquids,digits,addition,density,rounding,rounded,significant,mixed,mixture
        !          13374: round,figures,deviation,standard,digits,density,rounding,rounded,significant,units
        !          13375: round,figures,deviation,standard,digits,density,rounding,rounded,significant,units
        !          13376: round,figures,deviation,standard,digits,density,rounding,rounded,significant,units
        !          13377: round,figures,deviation,standard,outlier,digits,samples,rounding,rounded,significant,reject,mean
        !          13378: rounding,figures,digits,density,significant
        !          13379: round,figures,digits,density,rounding,rounded,significant
        !          13380: round,rounded,figures,digits,density,rounding,significant
        !          13381: round,figures,liquids,digits,addition,density,rounding,rounded,significant,mixed,mixture
        !          13382: round,figures,deviation,standard,digits,density,rounding,rounded,significant,units
        !          13383: deviation,rounding,rounded,round,figures,standard,digits,density,significant,units
        !          13384: round,figures,deviation,standard,digits,density,rounding,rounded,significant,units
        !          13385: round,figures,deviation,standard,outlier,digits,samples,rounding,rounded,significant,reject,mean
        !          13386: deviation,standard,lab,chem,sure,prelaboratory,significant,prelab,measurements,laboratory,high,school,mean
        !          13387: unit,correct,entries,symbols,units
        !          13388: liquids,addition,rounding,rounded,mixture,round,figures,digits,density,significant,mixed
        !          13389: round,figures,deviation,standard,outlier,rms,density,significant,units,mean
        !          13390: 
        !          13391: binary,composition,simple,percent,mixture
        !          13392: moles,mass,binary,mol,composition,simple,percent,mixture
        !          13393: moles,component,filter,mass,chemical,change,composition,separation,percent,properties,units,precipitate
        !          13394: 
        !          13395: arrow,gif,reaction,chemical,equation,right,symbol
        !          13396: 
        !          13397: barometric,oxygen,gas,collection,Law,lab,collected,Ideal,vapour,displacement,temperature,tube,pressure,water,levels,partial,Gas
        !          13398: 
        !          13399: 
        !          13400: 
        !          13401: chemical
        !          13402: pipette,volume,volumetric
        !          13403: reaction,complex,ion,reactions,formation,solution,aqueous,dissolves,excess
        !          13404: reaction,complex,ion,reactions,formation,solution,aqueous,dissolves,excess
        !          13405: Lewis,diagram bonding structure
        !          13406: 
        !          13407: 
        !          13408: 
        !          13409: acetic,acid,concentration,endpoint,naoh,solution,standard,standardization,titrated,titration
        !          13410: ionic,reaction,agcl,insoluble,equation,net,reactions,solubilities,aqueous,equations,solutions,solubility,soluble,precipitate
        !          13411: 
        !          13412: naoh,reaction,solution,sodium,titrated,neutralized,acetic,balanced,hydroxide,acid
        !          13413: 
        !          13414: barometric,oxygen,gas,collection,Law,lab,collected,Ideal,vapour,displacement,temperature,tube,pressure,water,levels,partial,Gas
        !          13415: 
        !          13416: 
        !          13417: 
        !          13418: 
        !          13419: 
        !          13420: gas,moles,reaction,hydrogen,reacts,mol,stoichiometry,hydrochloric,aqueous,molecules,excess,magnesium,balanced,acid
        !          13421: gas,moles,Law,mass,Ideal,molar,temperature,absolute,atm
        !          13422: dilutes,dilution,hcl,molarity,pipettes,solution,volumetric
        !          13423: 
        !          13424: aliquot,endpoint,hcl,naoh,neutral,neutralize,titrate,titration,volume
        !          13425: 
        !          13426: cu,consume,minimum,required,experiment,reaction,limiting,reactions,fe,iron,solution,aqueous,ions,excess,react,metal
        !          13427: ionic,products,nitrate,cu,redox,reaction,oxidized,net,aqueous,rod,surface,deposited,coefficients,metal,reactants,copper,balanced,silver
        !          13428: 
        !          13429: 
        !          13430: 
        !          13431: 
        !          13432: 
        !          13433: 
        !          13434: 
        !          13435: rms,round,figures,deviation,outlier,digits,samples,rounding,rounded,significant,reject,mean
        !          13436: 
        !          13437: 
        !          13438: 
        !          13439: experiment,period
        !          13440: 
        !          13441: deviation,rounding,rounded,round,figures,standard,digits,density,significant,units
        !          13442: 
        !          13443: 
        !          13444: 
        !          13445: 
        !          13446: 
        !          13447: 
        !          13448: experiment,period
        !          13449: number,chemical,significant
        !          13450: 
        !          13451: mass,binary,carbonate,composition,sodium,percent,sand,mixture
        !          13452: chloride,nitrate,barium,reagents,aqueous,potassium,chromate,silver
        !          13453: experiment,percent,sand,mixture,moles,mass,mol,carbonate,composition
        !          13454: chloride,bicarbonate,hydrogen,reagents,sodium,sulfate,hydroxide
        !          13455: acetic,acid,aqueous,hydrochloric,name,nitric,reagent,vinegar
        !          13456: 
        !          13457: example,examples,required,unit,space,correct,spaces,questions,CAPA,entries,casesensitive,symbols,rules,units
        !          13458: 
        !          13459: 
        !          13460: 
        !          13461: 
        !          13462: 
        !          13463: figures,sig,ed,calculation,trailing,rounding,computations,decimal,rounded,zeros,significant,fig,errors
        !          13464: number
        !          13465: significant,units
        !          13466: 
        !          13467: 
        !          13468: 
        !          13469: 
        !          13470: 
        !          13471: 
        !          13472: 
        !          13473: 
        !          13474: 
        !          13475: 
        !          13476: unit,degrees,centi,temperature,Kelvin,conversion,Celcius,kilo,milli,units,conversions
        !          13477: 
        !          13478: 
        !          13479: kg
        !          13480: 
        !          13481: conversion,units
        !          13482: kg,conversion,units
        !          13483: magnitude,temperatures,Kelvin,degrees,conversion,Celcius,temperature,units,absolute
        !          13484: conversion,units
        !          13485: temperatures,temperature,magnitude
        !          13486: kg,mg,ml,mm,degrees,centi,temperature,convert,cm,magnitude,Kelvin,conversion,Celcius,kilo,milli,units,conversions,absolute
        !          13487: 
        !          13488: 
        !          13489: number,significant,units
        !          13490: number,significant,units
        !          13491: number,significant,units
        !          13492: 
        !          13493: 
        !          13494: gas,experiment,period,laws,ideal,acid
        !          13495: experiment,vacuum,period,chemical,chem,gravity
        !          13496: glassware,supplies,laboratory
        !          13497: 
        !          13498: 
        !          13499: 
        !          13500: 
        !          13501: 
        !          13502: 
        !          13503: 
        !          13504: 
        !          13505: 
        !          13506: filter,ceramic,crucibles
        !          13507: 
        !          13508: heat,system,specific,surroundings,mass,calorimetry,calorimeter,temperature,exchange,equilibrate
        !          13509: heat,unit,degrees,temperature,specific,mass,kelvin,celcius,units
        !          13510: 
        !          13511: cm,dm,mass,unit,density,osmium,centi,metal,deci,block,units
        !          13512: atomic,Avogadro,atom,average,mass,density,atoms
        !          13513: 
        !          13514: composition,binary oxide,oxygen,combines,compound,percentage,weight
        !          13515: stoichiometry,limiting reagent chemistry,chemical
        !          13516: ratios,stoichiometry reaction ratio,reactant,mass,reactions
        !          13517: ag,excess,experiment,limiting,mass,percentage,reaction,reagent,yield
        !          13518: mass,ratio,ratios,reaction,step,stoichiometry,twostep
        !          13519: cumulative,limiting,mass,percentage,process,product,reactant,reagent,steps,stoichiometry,threestep,yield,yields
        !          13520: capacity,phase transition ,gaseous,state,heat,specific,boiling,fusion,substance,solid,degrees,vaporization,liquid,melting,states,points,heats
        !          13521: capacity,dispersal dimensional dimensions analysis,difference,heat,specific,hour,downstream,energy,nuclear,power,upstream,density,depth,temperature,plant,water,units,conversions
        !          13522: constant,pressure calorimeter,heat,specific,insulated,heated,surroundings,container,capacity,cools,temperature,metal,water
        !          13523: concentration,concentrations mass solute,number,molarity,ml,molar,solute,aqueous,moles,volume,solution,units
        !          13524: concentration,equation,mass,molarity,reagent,relations,solution,stoichiometry,volume
        !          13525: concentration,limiting,mass,mixing,molar,molarity,precipitation,react,reaction,reagent,solution,solutions,stoichiometry,yield
        !          13526: gas,standard,mass,stp,volume,ideal,degrees,temperature,pressure,units,atm
        !          13527: gas,mass,density,stp,molar,ideal,units
        !          13528: substances,gas,sealed,sublime,Law,substance,dry,volume,solid,ideal,degrees,container,flexible,temperature,ice,pressure,mole,atm
        !          13529: ideal,temperature pressure,gas,density,degrees,hexafluoride,sulfur,atm
        !          13530: KNO3,O2,atm,decomposition,degrees,gas,generation,ideal,mass,mole,moles,nitrate,nitrite,oxygen,potassium,pressure,produced,thermal,volume
        !          13531: atm,degrees,gas,gaseous,pressure,react,reactant,reaction,stoichiometry,temperatures,volume
        !          13532: Dalton,Law fraction gas ideal,gaseous,moles,number,molecules,pressure,partial,mole,mixture,atm
        !          13533: Dalton,s Law Dalton gas gases molar ,total,vessel,pressure,partial,mole,atm
        !          13534: reactant,products,equilibrium,reaction,position,concentration,product,dissociation,molar,degrees,constant,vessel,rightleftharpoons,ratio,equilibrate,relative
        !          13535: equilibrium,reaction,Keq,constant,rightleftharpoons,temperature,reverse
        !          13536: change,ratio ,gas,conditions,kelvin,volume,ideal,container,temperature,pressure
        !          13537: gas,moles,general,volume,ideal,degrees,temperature,pressure,atm
        !          13538: equilibrium,H3O,concentration,OH,ion,dissociation,molar,solution,aqueous,constant,water,units,Kw
        !          13539: magnitude,order,concentration,hydronium,ion,molar,solution,ph,units
        !          13540: H3O,concentration,hydronium,ion,Molar,solution,aqueous,ph
        !          13541: H3O,concentration,hydronium,ion,molar,solution,ph,units
        !          13542: base,log,concentration,hydronium,pH,acid
        !          13543: chips,gas,experiment,collection,apparatus,hydrogen,beaker,collected,eudiometer,mass,laws,dry,solution,ideal,surface,photo,constant,metal,water,acid,erlenmeyer,process,inverted
        !          13544: 
        !          13545: 
        !          13546: deliver,splattering,eudiometer,position,ml,spout,photos,hcl,photo,bottle,pump,dispenser,tube,acid
        !          13547: 
        !          13548: 
        !          13549: 
        !          13550: 
        !          13551: base,acid equivalent H2SO4,ml,hcl,volume,solution,aqueous,koh,neutralize
        !          13552: naoh,standard,molarity,ml,volume,aqueous,Standardization,acid,units,neutralize
        !          13553: Normal,acid,aliquot,equivalent,hydroxide,ml,molarity,naoh,neutralized,normality,sodium,solution,sulfuric,units
        !          13554: reactant,molarity,reaction,carbon,acidic,ion,stoichiometry,dichromate,solution,react,permanganate,RedOx,balanced,acid,units
        !          13555: redox,equation,cuprous,thiosulfate,iodide,molarity,ammoniacal,reaction,cuprate,acidic,stoichiometry,iodine,tetrathionate,basic,solution,cyanide,cyanate,potassium,balanced
        !          13556: moles,equilibrium,reaction,concentration,intial,mol,stoichiometry,ratio
        !          13557: 
        !          13558: constant,equilibrium,hypothetical,chemical,mol,molar,constant,rightleftharpoons,concentrations,units
        !          13559: gaseous,gas,apparent,equilibrium,reaction,mol,Keq,volume,molar,vessel,concentrations,mixture,units,Kp
        !          13560: temperature,pressure Law,substances,gas,sealed,sublime,dry,volume,solid,ideal,degrees,container,flexible,ice,mole,atm
        !          13561: Mass,Volume Keq,system,equilibrium,chemical,molar,degrees,container,constant,rightleftharpoons,concentrations,temperature,mixture,units
        !          13562: composition,Keq mass volume equation reaction,system,equilibrium,chemical,mol,molar,degrees,container,constant,rightleftharpoons,molecules,concentrations,temperature,mixture,units
        !          13563: masses,co,gaseous,gas,equilibrium,component,reaction,dioxide,mass,carbon,law,fraction,additivity,pressures,solid,molar,ideal,degrees,monoxide,constant,rightleftharpoons,percentage,concentrations,temperature,pressure,partial,mole,units,atm
        !          13564: gas,moles,mass,law,mol,kelvin,universal,grams,volume,molar,ideal,constant,molecules,atmospheres,temperature,pressure,mole,liters,absolute,atm
        !          13565: Kelvin,cdeg,degrees,Celcius,temperature,Absolute
        !          13566: subshell,energy,subshells,neutral,atoms,aufbau,ground,electrons,state,valence,electron
        !          13567: 
        !          13568: micro,gram unit mu
        !          13569: daltons,gaseous,gas,component,law,substance,pressures,gases,volume,ideal,pressure,partial,mixture
        !          13570: daltons,gas,specific,collect,equilibrium,liquids,law,evaporate,volume,solid,vapour,vapor,liquid,volatile,temperature,pressure,water,partial,phase,evaporates
        !          13571: 
        !          13572: 
        !          13573: 
        !          13574: 
        !          13575: 
        !          13576: 
        !          13577: 
        !          13578: 
        !          13579: 
        !          13580: 
        !          13581: 
        !          13582: 
        !          13583: 
        !          13584: 
        !          13585: 
        !          13586: 
        !          13587: 
        !          13588: 
        !          13589: 
        !          13590: 
        !          13591: 
        !          13592: 
        !          13593: 
        !          13594: 
        !          13595: 
        !          13596: 
        !          13597: 
        !          13598: 
        !          13599: 
        !          13600: 
        !          13601: 
        !          13602: 
        !          13603: 
        !          13604: 
        !          13605: 
        !          13606: 
        !          13607: 
        !          13608: 
        !          13609: 
        !          13610: 
        !          13611: 
        !          13612: 
        !          13613: 
        !          13614: 
        !          13615: 
        !          13616: 
        !          13617: 
        !          13618: 
        !          13619: 
        !          13620: 
        !          13621: 
        !          13622: 
        !          13623: 
        !          13624: 
        !          13625: 
        !          13626: 
        !          13627: 
        !          13628: 
        !          13629: 
        !          13630: 
        !          13631: 
        !          13632: 
        !          13633: 
        !          13634: 
        !          13635: 
        !          13636: 
        !          13637: 
        !          13638: 
        !          13639: 
        !          13640: 
        !          13641: 
        !          13642: 
        !          13643: 
        !          13644: number,notation,isotopic,protons,electrons,atom,mass,atomic,neutrons,isotope
        !          13645: heat,specific,notation,Chemical,Physical,Ion,Kelvin,unit,change,density,Metric,symbol,conversion,scale,Celcius,Temperature,Isotopes,properties,property,Element,Atom
        !          13646: ionic,ion,charge,ions,electron,symbols,electrons
        !          13647: protons,ion,electrons
        !          13648: protons,ion,ions,symbols,electrons
        !          13649: reaction,chemical,physical,reactions,react,property
        !          13650: chemical,water,physical,change
        !          13651: Table,atom,group,elements,periodic
        !          13652: 
        !          13653: 
        !          13654: 
        !          13655: 
        !          13656: 
        !          13657: 
        !          13658: 
        !          13659: base,concave,experiment,recorded,calibration,standard,apparatus,stopcock,lab,card,technique,flask,burette,volume,solution,photo,practice,hand,calibrated,readings,titration,meniscus,accurate,acid,units,erlenmeyer,reading
        !          13660: experiment,chemical,picture,organic,liquid
        !          13661: 
        !          13662: balance
        !          13663: 
        !          13664: 
        !          13665: 
        !          13666: mass,chemical,paper,pan,boat,measurement,sample,balance,precision,decimal,loading,tare,weigh,analytical
        !          13667: 
        !          13668: 
        !          13669: 
        !          13670: 
        !          13671: 
        !          13672: experiment,chemical,solvent,disposal,bottle,plastic,equipment,bench
        !          13673: 
        !          13674: 
        !          13675: wash,clamp,filter,lab,paper,stand,gravity,funnel,ring,bottle,filtration,glass
        !          13676: 
        !          13677: 
        !          13678: aspirator,clamped,vacuum,apparatus,filter,lab,stand,tap,flask,filtration,sucked,tube,vac
        !          13679: 
        !          13680: 
        !          13681: maximum,number,occupy,subshells,electrons
        !          13682: 
        !          13683: 
        !          13684: 
        !          13685: 
        !          13686: 
        !          13687: 
        !          13688: 
        !          13689: 
        !          13690: 
        !          13691: 
        !          13692: 
        !          13693: 
        !          13694: 
        !          13695: 
        !          13696: 
        !          13697: 
        !          13698: 
        !          13699: 
        !          13700: 
        !          13701: 
        !          13702: 
        !          13703: 
        !          13704: 
        !          13705: 
        !          13706: 
        !          13707: 
        !          13708: 
        !          13709: 
        !          13710: 
        !          13711: 
        !          13712: 
        !          13713: 
        !          13714: 
        !          13715: 
        !          13716: 
        !          13717: 
        !          13718: 
        !          13719: 
        !          13720: 
        !          13721: 
        !          13722: distinguishing,aufbau,electron,elements,subshell
        !          13723: element,periodic,li,elemental,fill,al,aufbau,electron,elements,subshell,symbols,filling
        !          13724: number,energy,orbital,shell,subshells,subshell,electrons,electronic,atom,structure,electron
        !          13725: atomic,elements
        !          13726: Hund,Pauli,atom,unpaired,elements,electrons
        !          13727: element,transition,group,gas,d,f,periodic,p,s,area,inner,representative,elements,block,noble,main
        !          13728: metal,element ,nonmetal,elements
        !          13729: metal,elements
        !          13730: metal,elements,nonmetallic,nonmetal
        !          13731: nomenclature,element,ionic,electronegative,binary,compound,compounds,elements,formula
        !          13732: isoelectronic,configuration,sublevels,electron,isotope
        !          13733: ionic,anion,binary,charge,stoichiometry,composition,compound,ions,compounds,cation,water,formula
        !          13734: nomenclature,common,ion,names,ions,name,polyatomic
        !          13735: ionic,anion,binary,charge,stoichiometry,composition,compound,ions,compounds,cation,water,formula
        !          13736: ionic,anion,binary,charge,stoichiometry,composition,compound,ions,compounds,cation,water,formula
        !          13737: nomenclature,binary compounds
        !          13738: 
        !          13739: 
        !          13740: 
        !          13741: 
        !          13742: 
        !          13743: 
        !          13744: 
        !          13745: 
        !          13746: 
        !          13747: 
        !          13748: 
        !          13749: 
        !          13750: 
        !          13751: 
        !          13752: 
        !          13753: 
        !          13754: 
        !          13755: 
        !          13756: 
        !          13757: 
        !          13758: 
        !          13759: 
        !          13760: 
        !          13761: 
        !          13762: 
        !          13763: 
        !          13764: 
        !          13765: 
        !          13766: 
        !          13767: 
        !          13768: 
        !          13769: 
        !          13770: 
        !          13771: 
        !          13772: 
        !          13773: 
        !          13774: 
        !          13775: 
        !          13776: 
        !          13777: 
        !          13778: 
        !          13779: 
        !          13780: 
        !          13781: 
        !          13782: 
        !          13783: 
        !          13784: 
        !          13785: 
        !          13786: 
        !          13787: 
        !          13788: 
        !          13789: 
        !          13790: 
        !          13791: 
        !          13792: 
        !          13793: 
        !          13794: 
        !          13795: 
        !          13796: 
        !          13797: 
        !          13798: 
        !          13799: 
        !          13800: 
        !          13801: 
        !          13802: 
        !          13803: 
        !          13804: 
        !          13805: 
        !          13806: 
        !          13807: 
        !          13808: 
        !          13809: 
        !          13810: 
        !          13811: 
        !          13812: 
        !          13813: 
        !          13814: 
        !          13815: 
        !          13816: 
        !          13817: 
        !          13818: 
        !          13819: 
        !          13820: 
        !          13821: 
        !          13822: 
        !          13823: 
        !          13824: 
        !          13825: 
        !          13826: 
        !          13827: 
        !          13828: 
        !          13829: 
        !          13830: 
        !          13831: 
        !          13832: 
        !          13833: 
        !          13834: 
        !          13835: 
        !          13836: 
        !          13837: 
        !          13838: 
        !          13839: 
        !          13840: 
        !          13841: 
        !          13842: 
        !          13843: 
        !          13844: 
        !          13845: 
        !          13846: 
        !          13847: 
        !          13848: 
        !          13849: 
        !          13850: 
        !          13851: 
        !          13852: 
        !          13853: 
        !          13854: 
        !          13855: 
        !          13856: 
        !          13857: 
        !          13858: 
        !          13859: 
        !          13860: 
        !          13861: 
        !          13862: 
        !          13863: 
        !          13864: 
        !          13865: 
        !          13866: 
        !          13867: 
        !          13868: 
        !          13869: 
        !          13870: 
        !          13871: 
        !          13872: 
        !          13873: 
        !          13874: 
        !          13875: 
        !          13876: 
        !          13877: 
        !          13878: 
        !          13879: 
        !          13880: 
        !          13881: 
        !          13882: 
        !          13883: 
        !          13884: 
        !          13885: 
        !          13886: 
        !          13887: 
        !          13888: 
        !          13889: 
        !          13890: 
        !          13891: 
        !          13892: 
        !          13893: 
        !          13894: 
        !          13895: 
        !          13896: 
        !          13897: 
        !          13898: 
        !          13899: 
        !          13900: 
        !          13901: 
        !          13902: 
        !          13903: 
        !          13904: 
        !          13905: 
        !          13906: 
        !          13907: 
        !          13908: 
        !          13909: 
        !          13910: 
        !          13911: 
        !          13912: 
        !          13913: 
        !          13914: 
        !          13915: 
        !          13916: 
        !          13917: 
        !          13918: 
        !          13919: 
        !          13920: 
        !          13921: 
        !          13922: 
        !          13923: 
        !          13924: 
        !          13925: 
        !          13926: 
        !          13927: 
        !          13928: 
        !          13929: 
        !          13930: 
        !          13931: 
        !          13932: 
        !          13933: 
        !          13934: 
        !          13935: 
        !          13936: 
        !          13937: 
        !          13938: 
        !          13939: 
        !          13940: 
        !          13941: 
        !          13942: 
        !          13943: 
        !          13944: 
        !          13945: 
        !          13946: 
        !          13947: 
        !          13948: 
        !          13949: 
        !          13950: 
        !          13951: 
        !          13952: 
        !          13953: 
        !          13954: 
        !          13955: 
        !          13956: 
        !          13957: 
        !          13958: 
        !          13959: 
        !          13960: 
        !          13961: 
        !          13962: 
        !          13963: 
        !          13964: 
        !          13965: 
        !          13966: 
        !          13967: 
        !          13968: 
        !          13969: 
        !          13970: 
        !          13971: 
        !          13972: 
        !          13973: 
        !          13974: 
        !          13975: 
        !          13976: 
        !          13977: 
        !          13978: 
        !          13979: 
        !          13980: 
        !          13981: 
        !          13982: 
        !          13983: 
        !          13984: 
        !          13985: 
        !          13986: 
        !          13987: 
        !          13988: 
        !          13989: 
        !          13990: 
        !          13991: 
        !          13992: 
        !          13993: 
        !          13994: atom,dot,diagram,electron,elements,Lewis
        !          13995: 
        !          13996: 
        !          13997: 
        !          13998: 
        !          13999: 
        !          14000: 
        !          14001: 
        !          14002: 
        !          14003: 
        !          14004: nomenclature,binary ionic compounds
        !          14005: element,periodic,electronegativity,electronegative,periodicity,chemical,table,elements
        !          14006: electronegativities,elements
        !          14007: bond,ionic,compounds,co,covalent,bonding
        !          14008: atom,pair,valence,theory,repulsion,nonbonding,environments,shell,shapes,atoms,molecules,geometrical,vsepr,electron,central,bonds,bond
        !          14009: atom,form,arrangement,formulae,theory,bonded,atomic,symbol,ions,shapes,atoms,molecules,geometrical,vsepr,bonds
        !          14010: dipole,moment,Debye,electrostatic,polarity,bonds,electrical,bond
        !          14011: covalent,ionic,nonpolar,atom,electronegativity,bonds
        !          14012: element,ionic,form,valence,chemical,stoichiometry,cationic,anionic,compound,electron,elements,cation,formula
        !          14013: polyatomic,nomenclature name ion,formula
        !          14014: 
        !          14015: compounds,name,nomenclature,acid
        !          14016: Chemistry,Introductory
        !          14017: analysis,substance,composition,percent,empirical,elemental,elements,weight,formula
        !          14018: co,analysis,mass,burned,substance,composition,combustion,compound,empirical,elements,formula
        !          14019: mass,burned,substance,combustion,compound,empirical,elements,formula
        !          14020: air,balanced,co,coefficients,combustion,conventionally,equation,hydrocarbon,hydrocarbons,integer,oxidation,oxygen,redox
        !          14021: balance,balanced,balancing,carbon,carbonates,cation,chemical,co,coefficient,coefficients,conventionally,decomposition,dioxide,equation,formula,forumla,metal,oxide,stoichiometry,symbol,thermal
        !          14022: 
        !          14023: 
        !          14024: 
        !          14025: 
        !          14026: products,Stoichiometry,product,oxide,empirical,react,coefficients,reactants,formula,reaction,mass,Composition,integers
        !          14027: air,balanced,chemical,co,coefficients,combustion,compounds,conventionally,heteroatom,hydrocarbon,integer,oxidation,oxygen,redox,stoichiometry
        !          14028: chemical,coefficients,concept,generic,imprecision,molecules,moles,number,numbers,quantities,react,reaction,significant,stoichiometry
        !          14029: enthalpies,phase, enthalpy, state,gaseous,freezing,gas,boiling,energy,solid,molten,temperature,melting,ice,point,absorbed,liquid,changes
        !          14030: 
        !          14031: position
        !          14032: example,commutation,number,notation,association,unit,space,spaces,questions,homework,string,compound,decimal,casesensitive,enter,quantitative,scientific,symbols,rules,response,units
        !          14033: 
        !          14034: 
        !          14035: arrangement,pairs,molecular,hybridization,pyramidal,octahedral,molecules,planar,atom,pair,lonepairs,square,shapes,lone,bonds
        !          14036: 
        !          14037: 
        !          14038: 
        !          14039: 
        !          14040: 
        !          14041: 
        !          14042: 
        !          14043: 
        !          14044: 
        !          14045: seesaw,bipyramidal,arrangement,pairs,Repulsion,molecular,Shell,hybridization,pyramidal,hybrid,molecules,Pair,atom,Valence,pair,lonepairs,Theory,trigonal,Electron,shapes,lone,bonds
        !          14046: VSEPR,arrangement,pairs,Repulsion,molecular,Shell,hybridization,molecules,Tetrahedron,Pair,atom,Valence,pair,lonepairs,Theory,tetrahedral,Electron,shapes,lone,bonds
        !          14047: VSEPR,arrangement,pairs,Repulsion,molecular,Shell,hybridization,molecules,planar,atom,Valence,pair,lonepairs,Theory,trigonal,Electron,shapes,lone,bonds
        !          14048: Valence,Shell Electron Repulsion ,atom,sp,pairs,molecule,linear,hybridization,lone,bonds
        !          14049: strings,string,image
        !          14050: 
        !          14051: masses,dime,quarter,canadian,mass,submerge,value,coins,dollar,density,nickel,volume,displacement,water,monetary
        !          14052: atom,pairs,trigonal,nonbonding,linear,octahedron,triangle,bipyramid,shapes,molecules,lone,vsepr,central,electrons,bonds,structures
        !          14053: 
        !          14054: 
        !          14055: 
        !          14056: co
        !          14057: balanced,chemical,coefficients,conventional,equation,integers,products,reaction,reagents
        !          14058: reaction,stoichiometry
        !          14059: dipole,London bonding bond attraction,forces,hydrogen,intermolecular,physical,properties,substances
        !          14060: intermolecular,forces heat vaporization condensation,boiling,molecular,point,substances
        !          14061: physical,properties ,boiling,evaporate,forces,intermolecular,mmhg,molecular,point,pressure,substance,vapor,vapour
        !          14062: Solid,liquid gas substance  physical state matter phase heat vapor condensation fusion boil melt enthalpy pressure solution concentration molar stoichiometry limiting reagent intermolecular force hydrogen-bond dipole London molecular molecule
        !          14063: Boyle,degrees,gas,gaseous,ideal,law,mass,molar,mole,pressure,substances,temperature,volume
        !          14064: analysis,elemental,elements,formula,gas,gaseous,mass,molecular,stp
        !          14065: ideal,gas law Boyle volume pressure temperature 
        !          14066: nomenclature,name,acid,acids,chemical,formula
        !          14067: acid,acidandbase,acidbase,acids,base,bases,br,bronstedlowry,co,conjugate,pairs,reaction,reactions
        !          14068: 
        !          14069: Activity,series oxidation reduction displacement,acid,gas,hydrogen,metal,reaction,reactions,steam,water
        !          14070: acid,aqueous,base,concentration,hydronium,hydroxide,pH,solution,solutions
        !          14071: acid,base neutrality nomenclature pH hydroxide hydronium Lowry Bronsted neutralization standardization titration
        !          14072: formal,formula element electron electronegativity ,atom,atoms,compounds,conventional,numbers,oxidation
        !          14073: 
        !          14074: oxidation,reduction agents oxidizing reducing oxidant reductant,oxidized,reactions,reagent,redox,reduced
        !          14075: redox,oxidation reduction balancing chemical equation,balance,coefficients,number,oxidation
        !          14076: 
        !          14077: 
        !          14078: 
        !          14079: 
        !          14080: 
        !          14081: 
        !          14082: 
        !          14083: 
        !          14084: 
        !          14085: 
        !          14086: 
        !          14087: 
        !          14088: 
        !          14089: 
        !          14090: 
        !          14091: 
        !          14092: 
        !          14093: 
        !          14094: 
        !          14095: 
        !          14096: 
        !          14097: 
        !          14098: 
        !          14099: 
        !          14100: 
        !          14101: 
        !          14102: 
        !          14103: 
        !          14104: 
        !          14105: 
        !          14106: 
        !          14107: Balancing,aqueous,balance,base,basic,chemical,equations,hydroxide,in,number,oxidation,reactions,redox,reduction,solution
        !          14108: agent,al,balance,balanced,basic,electrons,fe,number,oxidizing,reaction,redox,reducing,si,solution,transferred
        !          14109: oxidizing,reducing reductant oxidant halr oxidation reduction,agent,halfreaction,reaction,reactions,reducing
        !          14110: 
        !          14111: 
        !          14112: 
        !          14113: 
        !          14114: 
        !          14115: 
        !          14116: 
        !          14117: 
        !          14118: 
        !          14119: 
        !          14120: 
        !          14121: 
        !          14122: 
        !          14123: 
        !          14124: 
        !          14125: 
        !          14126: 
        !          14127: 
        !          14128: 
        !          14129: Physics,Algebra bases
        !          14130: 
        !          14131: 
        !          14132: 
        !          14133: 
        !          14134: 
        !          14135: 
        !          14136: 
        !          14137: 
        !          14138: Physics,Algebra bases
        !          14139: 
        !          14140: 
        !          14141: 
        !          14142: 
        !          14143: color,speed
        !          14144: 
        !          14145: 
        !          14146: 
        !          14147: 
        !          14148: 
        !          14149: 
        !          14150: digits,number,significant,units
        !          14151: 
        !          14152: 
        !          14153: formula,string
        !          14154: data,frame
        !          14155: 
        !          14156: 
        !          14157: 
        !          14158: image,physics
        !          14159: 
        !          14160: 
        !          14161: chemical,string
        !          14162: 
        !          14163: 
        !          14164: 
        !          14165: image,stored
        !          14166: 
        !          14167: 
        !          14168: 
        !          14169: 
        !          14170: 

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