( ( A gas ) ( ( has ( ( ( neither ( a ( definite volume ) ) ) nor ) ( a ( definite shape ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN gas)) (VP (VBZ has) (NP (NP (ADVP (DT neither)) (DT a) (JJ definite) (NN volume)) (CC nor) (NP (DT a) (JJ definite) (NN shape)))) (. .)))
A gas has neither a definite volume nor a definite shape.
(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)))) (. .)))