( ( ( The ( important part ) ) ( in ( the ( sperm whale ) ) ) ) ( ( is ( ( ( the ( sperm oil ) ) , ) ( that ( came ( from ( ( ( the blubber ) and ) ( the head ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ important) (NN part)) (PP (IN in) (NP (DT the) (NN sperm) (NN whale)))) (VP (VBZ is) (NP (NP (DT the) (NN sperm) (NN oil)) (, ,) (SBAR (WHNP (WDT that)) (S (VP (VBD came) (PP (IN from) (NP (NP (DT the) (NN blubber)) (CC and) (NP (DT the) (NN head))))))))) (. .)))
The important part in the sperm whale is the sperm oil, that came from the blubber and the head .
(ROOT (S (NP (NP (DT The) (NN head)) (PP (IN of) (NP (DT the) (NN sperm)))) (VP (VBZ contains) (NP (DT the) (NN nucleus))) (. .)))
The head of the sperm contains the nucleus.