( ( As ( ( ( the temperature ) ( of ( a gas ) ) ) ( is increased ) ) ) ( , ( ( ( ( ( ( the volume ) ( of ( a gas ) ) ) increases ) and ) ( conversely ( , ( ( as ( ( ( the temperature ) ( of ( a gas ) ) ) ( is decreased ) ) ) ( , ( ( ( the volume ) ( of ( that gas ) ) ) decreases ) ) ) ) ) ) . ) ) )
(ROOT (S (SBAR (IN As) (S (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (DT a) (NN gas)))) (VP (VBZ is) (VP (VBN increased))))) (, ,) (S (NP (NP (DT the) (NN volume)) (PP (IN of) (NP (DT a) (NN gas)))) (VP (VBZ increases))) (CC and) (S (ADVP (RB conversely)) (, ,) (SBAR (IN as) (S (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (DT a) (NN gas)))) (VP (VBZ is) (VP (VBN decreased))))) (, ,) (NP (NP (DT the) (NN volume)) (PP (IN of) (NP (DT that) (NN gas)))) (VP (VBZ decreases))) (. .)))
As the temperature of a gas is increased, the volume of a gas increases and conversely, as the temperature of a gas is decreased, the volume of that gas decreases.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (NN temperature) (NNS increases)) (PP (CC but) (NP (NP (NN amount)) (PP (IN of) (NP (NP (NN gas)) (CC and) (NP (PRP$ its) (NN pressure))))))) (VP (VBP are) (ADJP (JJ constantvolume))))) (NP (NNS increases)) (VP (VBZ happens) (PP (TO to) (NP (NP (DT the) (NN volume)) (PP (IN of) (NP (DT the) (NN gas)))))) (. .)))