( Gases ( ( have ( no ( definite ( ( shape or ) volume ) ) ) ) . ) )
(ROOT (S (NP (NNS Gases)) (VP (VBP have) (NP (DT no) (JJ definite) (NN shape) (CC or) (NN volume))) (. .)))
Gases have no 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.