( ( Proteins Proteins ) ( ( are ( ( compounds ( of ( amino acids ) ) ) ( that ( contain ( ( ( ( carbon ( , ( hydrogen ( , ( oxygen ( , nitrogen ) ) ) ) ) ) and ) ( , ( ( in ( a ( few cases ) ) ) , ) ) ) sulfur ) ) ) ) ) . ) )
(ROOT (S (NP (NNPS Proteins) (NNPS Proteins)) (VP (VBP are) (NP (NP (NNS compounds)) (PP (IN of) (NP (JJ amino) (NNS acids))) (SBAR (WHNP (WDT that)) (S (VP (VBP contain) (NP (NP (NN carbon) (, ,) (NN hydrogen) (, ,) (NN oxygen) (, ,) (NN nitrogen)) (CC and) (PRN (, ,) (PP (IN in) (NP (DT a) (JJ few) (NNS cases))) (, ,)) (NP (NN sulfur)))))))) (. .)))
Proteins Proteins are compounds of amino acids that contain carbon, hydrogen, oxygen, nitrogen and, in a few cases, sulfur.
(ROOT (S (NP (NNP Rna) (CC and) (NNP dna)) (VP (VBP are) (NP (NP (NNS types)) (PP (IN of) (NP (NP (JJ nucleic) (NNS acids)) (VP (VBG containing) (NP (NP (DT the) (NNS elements)) (NP (NN carbon) (, ,) (NN hydrogen) (, ,) (NN oxygen) (, ,) (NN nitrogen) (, ,) (CC and) (NN phosphorus)))))))) (. .)))