( ( A gas ) ( ( ( does not ) ( have ( ( ( a ( definite shape ) ) or ) volume ) ) ) . ) )
(ROOT (S (NP (DT A) (NN gas)) (VP (VBZ does) (RB not) (VP (VB have) (NP (NP (DT a) (JJ definite) (NN shape)) (CC or) (NP (NN volume))))) (. .)))
A gas does not have a definite shape or volume.
(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.