( ( ( Organic compounds ) ( -LRB- ( ( ( proteins , ) ( ( lipids and ) carbohydrates ) ) -RRB- ) ) ) ( ( contain ( ( the majority ) ( of ( the ( ( carbon and ) nitrogen ) ) ) ) ) ; ) )
(ROOT (S (NP (NP (NNP Organic) (NNS compounds)) (PRN (-LRB- -LRB-) (NP (NP (NNS proteins)) (, ,) (NP (NNS lipids) (CC and) (NNS carbohydrates))) (-RRB- -RRB-))) (VP (VBP contain) (NP (NP (DT the) (NN majority)) (PP (IN of) (NP (DT the) (NN carbon) (CC and) (NN nitrogen))))) (: ;)))
Organic compounds (proteins, lipids and carbohydrates) contain the majority of the carbon and nitrogen;
(ROOT (S (NP (NNS Carbohydrates)) (VP (VBP are) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN type)) (PP (IN of) (NP (JJ organic) (NN compound))))) (. .)))