( ( Volume Space ) ( ( occupied ( in ( three dimensions ) ) ) . ) )
(ROOT (S (NP (NNP Volume) (NNP Space)) (VP (VBD occupied) (PP (IN in) (NP (CD three) (NNS dimensions)))) (. .)))
Volume Space occupied in three dimensions.
(ROOT (S (NP (DT The) (NN term) (NN volume)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB describe) (S (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN space)))) (ADJP (VBN occupied) (PP (IN by) (NP (NP (DT a) (NN sample)) (PP (IN of) (NP (NN matter)))))))))))) (. .)))