( 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 (IN If) (S (NP (DT a) (NN solute)) (VP (VBZ is) (NP (DT a) (NN gas))))) (, ,) (S (VP (VBG increasing) (NP (DT the) (NN temperature)))) (VP (MD will) (VP (VB decrease) (NP (PRP$ its) (NN solubility)))) (. .)))