( ( A gas ) ( ( has ( neither ( ( ( ( a ( fixed volume ) ) , ) or ) ( a ( definite shape ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN gas)) (VP (VBZ has) (NP (DT neither) (NP (DT a) (JJ fixed) (NN volume)) (, ,) (CC or) (NP (DT a) (JJ definite) (NN shape)))) (. .)))
A gas has neither a fixed volume, or a definite 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.