( ( This result ) ( ( ( is ( consistent ( with ( ( the ( atomic picture ) ) ( of ( a gas ) ) ) ) ) ) ( since ( ( decreasing ( -LRB- ( increasing -RRB- ) ) ) ( ( ( the volume ) ( of ( the gas ) ) ) ( ( ( ( increases ( -LRB- ( ( decreases -RRB- ) ( ( the number ) ( of ( molecules ( colliding ( with ( the side ) ) ) ) ) ) ) ) ) and ) hence ) ( increases ( -LRB- ( ( decreases -RRB- ) ( the pressure ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN result)) (VP (VBZ is) (ADJP (JJ consistent) (PP (IN with) (NP (NP (DT the) (JJ atomic) (NN picture)) (PP (IN of) (NP (DT a) (NN gas)))))) (PP (IN since) (S (VP (VBG decreasing) (PRN (-LRB- -LRB-) (S (VP (VBG increasing))) (-RRB- -RRB-)) (S (NP (NP (DT the) (NN volume)) (PP (IN of) (NP (DT the) (NN gas)))) (VP (VP (VBZ increases) (S (-LRB- -LRB-) (NP (NNS decreases)) (-RRB- -RRB-) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS molecules)) (VP (VBG colliding) (PP (IN with) (NP (DT the) (NN side))))))))) (CC and) (ADVP (RB hence)) (VP (VBZ increases) (S (-LRB- -LRB-) (NP (NNS decreases)) (-RRB- -RRB-) (NP (DT the) (NN pressure)))))))))) (. .)))
This result is consistent with the atomic picture of a gas since decreasing (increasing) the volume of the gas increases (decreases) the number of molecules colliding with the side and hence increases (decreases) the pressure.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NN gas) (NNS particles)) (VP (VB heat) (PRT (RP up))))) (, ,) (NP (NN pressure)) (VP (VBP increase)) (. .)))