( ( Increasing ( ( the Volume ) ( of ( a ( gas 3 ) ) ) ) ) . )
(ROOT (S (VP (VBG Increasing) (NP (NP (DT the) (NN Volume)) (PP (IN of) (NP (DT a) (NN gas) (CD 3))))) (. .)))
Increasing the Volume of a gas 3.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (PRP you)) (VP (VBP add) (NP (NP (NNS moles)) (PP (IN of) (NP (NP (NN gas)) (PP (TO to) (NP (DT a) (NN baloon)))))) (PP (IN by) (S (VP (VBG blowing) (NP (PRP it)) (PRT (RP up)))))))) (, ,) (NP (DT the) (NN volume)) (VP (VBZ increases)) (. .)))