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parse tree POS tag dependency tree surface text n-gram Charles’s law ……….V/T=k………………...…. V……………………………………. ………………………….T………… …..k………….……………………. ………………p 0 ………………….. ……………………………………… ……………………………………… ……pV=nRT………………..….. …………………………….…….n …R………………………………… documents collection contextual description extractor V/T = k a modern statement of Charles’s law k a constant V the volume of the gas T the temperature of the gas (measured in Kelvin) pV=nRT the modern statement of the ideal gas law n the amount of substance of the gas sample R the gas constant p 0 the pressure math formulas/expressions and their descriptions

Yokoさん

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parse tree

POS tag

dependency tree

surface text

n-gram

Charles’s law

……….V/T=k………………...….V…………………………………….………………………….T……………..k………….…………………….………………p0…………………..……………………………………………………………………………………pV=nRT………………..…..…………………………….…….n…R…………………………………

documents collectioncontextual description

extractor

V/T = ka modern statement

of Charles’s law

ka constant

Vthe volume of the gas

Tthe temperature of the

gas (measured in Kelvin)

pV=nRTthe modern

statement of the ideal gas law

nthe amount of substance

of the gas sample

Rthe gas

constant

p0the pressure

math formulas/expressionsand their descriptions