( ( ( ( ( Gasses ( have ( neither ( ( ( a ( definite shape ) ) nor ) volume ) ) ) ) , ) and ) ( ( both ( of these ) ) ( are ( defined ( by ( ( the ( ( shape and ) volume ) ) ( of ( their container ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Gasses)) (VP (VBP have) (S (NP (CC neither) (NP (DT a) (JJ definite) (NN shape)) (CC nor) (NP (NN volume)))))) (, ,) (CC and) (S (NP (NP (DT both)) (PP (IN of) (NP (DT these)))) (VP (VBP are) (VP (VBN defined) (PP (IN by) (NP (NP (DT the) (NN shape) (CC and) (NN volume)) (PP (IN of) (NP (PRP$ their) (NN container)))))))) (. .)))
Gasses have neither a definite shape nor volume, and both of these are defined by the shape and volume of their container.
(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)))) (. .)))