( Now ( ( discuss ( how ( ( a gas ) ( has ( ( ( no ( definite volume ) ) or ) shape ) ) ) ) ) . ) )
(ROOT (S (ADVP (RB Now)) (VP (VB discuss) (SBAR (WHADVP (WRB how)) (S (NP (DT a) (NN gas)) (VP (VBZ has) (NP (NP (DT no) (JJ definite) (NN volume)) (CC or) (NP (NN shape))))))) (. .)))
Now discuss how a gas has no definite volume or shape.
(ROOT (S (NP (NNP Gas)) (VP (VBZ has) (NP (NP (DT no) (JJ definite) (NN volume)) (CC and) (NP (DT no) (JJ definite) (NN shape)))) (. .)))
Gas has no definite volume and no definite shape.