( ( ( Each molecule ) ( of ( carbon dioxide ) ) ) ( ( has ( ( ( the ( chemical formula ) ) ( CO 2 ) ) ( which ( means ( that ( it ( is ( ( made up ) ( of ( ( ( ( one atom ) ( of carbon ) ) and ) ( ( two atoms ) ( of oxygen ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT Each) (NN molecule)) (PP (IN of) (NP (NN carbon) (NN dioxide)))) (VP (VBZ has) (NP (NP (DT the) (JJ chemical) (NN formula)) (NP (NNP CO) (CD 2)) (SBAR (WHNP (WDT which)) (S (VP (VBZ means) (SBAR (IN that) (S (NP (PRP it)) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (NP (NP (CD one) (NN atom)) (PP (IN of) (NP (NN carbon)))) (CC and) (NP (NP (CD two) (NNS atoms)) (PP (IN of) (NP (NN oxygen))))))))))))))) (. .)))
Each molecule of carbon dioxide has the chemical formula CO 2 which means that it is made up of one atom of carbon and two atoms of oxygen.
(ROOT (S (NP (NNP Carbon) (NN dioxide) (NNS molecules)) (VP (VBP consist) (PP (IN of) (NP (NP (DT a) (JJ central) (NN carbon) (NN atom)) (VP (VBN bonded) (PP (TO to) (NP (CD two) (NN oxygen) (NNS atoms))))))) (. .)))