( Gases ( , ( however ( , ( ( ( decrease ( in solubility ) ) ( with ( ( an increase ) ( in temperature ) ) ) ) . ) ) ) ) )
(ROOT (S (NP (NNS Gases)) (, ,) (ADVP (RB however)) (, ,) (VP (VBD decrease) (PP (IN in) (NP (NN solubility))) (PP (IN with) (NP (NP (DT an) (NN increase)) (PP (IN in) (NP (NN temperature)))))) (. .)))
Gases, however, decrease in solubility with an increase in temperature.
(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)) (. .)))