( ( ( Volume ( The amount ) ) ( of space ) ) ( ( ( ( occupied ( in ( three dimensions ) ) ) and ) ( expressed ( in ( cubic units ) ) ) ) . ) )
(ROOT (S (NP (NP (NN Volume) (DT The) (NN amount)) (PP (IN of) (NP (NN space)))) (VP (VP (VBD occupied) (PP (IN in) (NP (CD three) (NNS dimensions)))) (CC and) (VP (VBD expressed) (PP (IN in) (NP (JJ cubic) (NNS units))))) (. .)))
Volume The amount of space occupied in three dimensions and expressed in cubic units.
(ROOT (S (NP (NN Volume)) (VP (VBZ is) (NP (NP (DT a) (NN measure)) (PP (IN of) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN space)))))) (SBAR (IN that) (S (NP (NP (DT a) (NN substance)) (CC or) (NP (DT an) (NN object))) (VP (VBZ occupies))))) (. .)))