( ( ( ( ( Carbon ( is ( ( the basis ) ( for ( ( all ( life forms ) ) ( on Earth ) ) ) ) ) ) , ) and ) ( ( ( nitrogen and ) oxygen ) ( ( ( make up ) ( the air ) ) ( that ( we breathe ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Carbon)) (VP (VBZ is) (NP (NP (DT the) (NN basis)) (PP (IN for) (NP (NP (DT all) (NN life) (NNS forms)) (PP (IN on) (NP (NNP Earth)))))))) (, ,) (CC and) (S (NP (NN nitrogen) (CC and) (NN oxygen)) (VP (VBP make) (PRT (RP up)) (NP (DT the) (NN air)) (SBAR (IN that) (S (NP (PRP we)) (VP (VB breathe)))))) (. .)))
Carbon is the basis for all life forms on Earth, and nitrogen and oxygen make up the air that we breathe.
(ROOT (S (NP (NNP Carbon)) (VP (VBZ is) (NP (NP (DT the) (NN basis)) (PP (IN of) (NP (NP (DT all) (NN life)) (PP (IN on) (NP (NN earth))))))) (. .)))