( ( ( VOLATILE ( ORGANIC COMPOUND ) ) ( -LRB- ( VOC -RRB- ) ) ) ( ( is ( ( any ( volatile ( chemical compound ) ) ) ( which ( contains ( ( the ( element carbon ) ) ( excluding ( ( ( ( ( ( ( ( ( ( ( ( ( methane , ) ( carbon monoxide ) ) , ) ( carbon dioxide ) ) , ) ( carbonic acid ) ) , ) ( metallic ( ( carbides or ) carbonates ) ) ) , ) ( ammonium carbonate ) ) , ) and ) ( exempt compounds ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP VOLATILE) (NNP ORGANIC) (NNP COMPOUND)) (PRN (-LRB- -LRB-) (NP (NNP VOC)) (-RRB- -RRB-))) (VP (VBZ is) (NP (NP (DT any) (JJ volatile) (NN chemical) (NN compound)) (SBAR (WHNP (WDT which)) (S (VP (VBZ contains) (NP (NP (DT the) (NN element) (NN carbon)) (PP (VBG excluding) (NP (NP (NN methane)) (, ,) (NP (NN carbon) (NN monoxide)) (, ,) (NP (NN carbon) (NN dioxide)) (, ,) (NP (JJ carbonic) (NN acid)) (, ,) (NP (JJ metallic) (NNS carbides) (CC or) (NNS carbonates)) (, ,) (NP (NN ammonium) (NN carbonate)) (, ,) (CC and) (NP (JJ exempt) (NNS compounds)))))))))) (. .)))
VOLATILE ORGANIC COMPOUND (VOC) is any volatile chemical compound which contains the element carbon excluding methane, carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, ammonium carbonate, and exempt compounds.
(ROOT (S (NP (NP (NNS Compounds)) (VP (VBG containing) (NP (DT the) (NN element) (NN carbon)))) (VP (VBP are) (NP (NP (DT the) (NN basis)) (PP (IN of) (NP (DT all) (VBN known) (NN life))))) (. .)))
Compounds containing the element carbon are the basis of all known life.