( Volume ( ( is ( ( the ( three ( dimensional space ) ) ) ( occupied ( by matter ) ) ) ) . ) )
(ROOT (S (NP (NN Volume)) (VP (VBZ is) (NP (NP (DT the) (CD three) (NN dimensional) (NN space)) (ADJP (VBN occupied) (PP (IN by) (NP (NN matter)))))) (. .)))
Volume is the three dimensional space occupied by matter.
(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)))))))))))) (. .)))