( ( The ( simplest hydrocarbon ) ) ( ( is ( composed ( of ( ( ( one ( carbon ( atom ( and ( four ( hydrogen atoms ) ) ) ) ) ) , ) ( CH 4 ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJS simplest) (NN hydrocarbon)) (VP (VBZ is) (VP (VBN composed) (PP (IN of) (NP (NP (CD one) (NN carbon) (NN atom) (CC and) (CD four) (NN hydrogen) (NNS atoms)) (, ,) (NP (NNP CH) (CD 4)))))) (. .)))
The simplest hydrocarbon is composed of one carbon atom and four hydrogen atoms, CH 4 .
(ROOT (S (NP (NNS Hydrocarbons)) (VP (VBP are) (VP (VBN made) (PP (IN of) (NP (NP (CD one) (NN carbon)) (CC and) (NP (CD four) (NN hydrogen) (NNS atoms)))))) (. .)))
Hydrocarbons are made of one carbon and four hydrogen atoms.