( ( ( Gas solubility ) ( in water ) ) ( ( decreases ( when ( ( the temperature ) ( goes up ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Gas) (NN solubility)) (PP (IN in) (NP (NN water)))) (VP (VBZ decreases) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NN temperature)) (VP (VBZ goes) (PRT (RP up)))))) (. .)))
Gas solubility in water decreases when the temperature goes up.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (DT the) (NN solubility)) (PP (IN of) (NP (NP (NNS gases)) (PP (IN in) (NP (NNS liquids)))))) (VP (VBZ changes) (PP (IN with) (NP (VBG increasing) (NN temperature)))))) (, ,) (NP (PRP it)) (VP (VBZ decreases)) (. .)))