( Gases ( ( ( do not ) ( have ( ( ( a ( definite shape ) ) nor ) ( a ( definite volume ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Gases)) (VP (VBP do) (RB not) (VP (VB have) (NP (NP (DT a) (JJ definite) (NN shape)) (CC nor) (NP (DT a) (JJ definite) (NN volume))))) (. .)))
Gases do not have a definite shape nor a definite volume.
(ROOT (S (NP (NP (DT The) (NN gas) (NN form)) (PP (IN of) (NP (NN matter)))) (VP (VBZ has) (NP (NP (ADVP (DT neither)) (DT a) (JJ definite) (NN shape)) (CC nor) (NP (DT a) (JJ definite) (NN volume)))) (. .)))