( ( This gas ) ( ( ( increases ( the ( joint volume ) ) ) ( by ( ( ( 15 to ) 20 ) percent ) ) ) ; ) )
(ROOT (S (NP (DT This) (NN gas)) (VP (VBZ increases) (NP (DT the) (JJ joint) (NN volume)) (PP (IN by) (NP (QP (CD 15) (TO to) (CD 20)) (NN percent)))) (: ;)))
This gas increases the joint volume by 15 to 20 percent;
(ROOT (S (PP (IN From) (NP (NP (NNS observations)) (ADJP (RB as) (JJ simple) (PP (IN as) (S (VP (VBG blowing) (PRT (RP up)) (NP (DT a) (NN balloon)))))))) (, ,) (NP (PRP it)) (VP (VBZ is) (ADJP (JJ clear)) (SBAR (IN that) (S (S (VP (VBG increasing) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN gas)))))) (VP (VBZ increases) (NP (DT the) (NN volume)))))) (. .)))