( ( Contrast ( ( ( prokaryotic and ) eukaryotic ) cells ) ) . )
(ROOT (S (VP (VB Contrast) (NP (ADJP (JJ prokaryotic) (CC and) (JJ eukaryotic)) (NNS cells))) (. .)))
Contrast prokaryotic and eukaryotic cells.
(ROOT (S (NP (NP (DT The) (JJ main) (NN difference)) (PP (IN between) (NP (ADJP (JJ eukaryotic) (CC and) (JJ prokaryotic)) (NNS cells)))) (VP (VBZ is) (SBAR (IN that) (S (NP (JJ eukaryotic) (NNS cells)) (VP (VBP have) (NP (DT a) (NN nucleus)))))) (. .)))