( ( ( 317 ( light chains ) ) ( ( The ( two ( ( smaller polypeptide ) chains ) ) ) ( in ( an ( antibody subunit ) ) ) ) ) . )
(ROOT (NP (NP (CD 317) (JJ light) (NNS chains)) (NP (NP (DT The) (CD two) (ADJP (JJR smaller) (JJ polypeptide)) (NNS chains)) (PP (IN in) (NP (DT an) (NN antibody) (NN subunit)))) (. .)))
317 light chains The two smaller polypeptide chains in 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))))) (. .)))