( ( ( ( volume 3 ) ( ( The measure ) ( of ( ( the amount ) ( of space ) ) ) ) ) ( ( a sample ) ( of ( matter occupies ) ) ) ) . )
(ROOT (NP (NP (NN volume) (CD 3)) (NP (NP (DT The) (NN measure)) (PP (IN of) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN space)))))) (NP (NP (DT a) (NN sample)) (PP (IN of) (NP (NN matter) (NNS occupies)))) (. .)))
volume 3 The measure of the amount of space a sample of matter occupies.
(ROOT (S (NP (DT The) (NN term) (NN volume)) (VP (VBZ means) (SBAR (S (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN space) (NN matter)))) (VP (VBZ takes) (PRT (RP up)))))) (. .)))