( ( ( ( Amino Acids ) , ) ( ( ( Proteins , ) and ) Enzymes ) ) . )
(ROOT (NP (NP (NNP Amino) (NNP Acids)) (, ,) (NP (NP (NNPS Proteins)) (, ,) (CC and) (NP (NNP Enzymes))) (. .)))
Amino Acids, Proteins, and Enzymes.
(ROOT (S (NP (JJ Many) (NNS enzymes)) (VP (VBP are) (NP (NP (JJ simple) (NNS proteins)) (VP (VBG consisting) (ADVP (RB entirely)) (PP (IN of) (NP (QP (CD one) (CC or) (JJR more)) (JJ amino) (NN acid) (NNS chains)))))) (. .)))