( Proteins ( ( are ( ( long chains ) ( of ( ( amino acids ) ( folded ( into ( three ( dimensional shapes ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNPS Proteins)) (VP (VBP are) (NP (NP (JJ long) (NNS chains)) (PP (IN of) (NP (NP (JJ amino) (NNS acids)) (VP (VBN folded) (PP (IN into) (NP (CD three) (JJ dimensional) (NNS shapes)))))))) (. .)))
Proteins are long chains of amino acids folded into three dimensional shapes.
(ROOT (S (NP (NNPS Proteins)) (VP (VBP are) (NP (NP (JJ long) (NNS chains)) (PP (IN of) (NP (JJ amino) (NNS acids))))) (. .)))