( ( ( 42 ( heavy chains ) ) ( ( The ( two ( larger polypeptides ) ) ) ( of ( an ( antibody subunit ) ) ) ) ) . )
(ROOT (NP (NP (CD 42) (JJ heavy) (NNS chains)) (NP (NP (DT The) (CD two) (JJR larger) (NNS polypeptides)) (PP (IN of) (NP (DT an) (NN antibody) (NN subunit)))) (. .)))
42 heavy chains The two larger polypeptides of an antibody subunit.
(ROOT (S (NP (NNP Insulin)) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (CD two) (JJ polypeptide) (NNS chains))))) (. .)))