( ( Composition ( wherein ( ( a ( carbon atom ) ) ( bonded ( to ( the ( hydroxy ( or ( ether oxygen ) ) ) ) ) ) ) ) ) ( ( is ( part ( of ( a ( benzene ring ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Composition)) (SBAR (WHADVP (WRB wherein)) (S (NP (DT a) (NN carbon) (NN atom)) (VP (VBZ bonded) (PP (TO to) (NP (DT the) (NN hydroxy) (CC or) (NN ether) (NN oxygen))))))) (VP (VBZ is) (NP (NP (NN part)) (PP (IN of) (NP (DT a) (JJ benzene) (NN ring))))) (. .)))
Composition wherein a carbon atom bonded to the hydroxy or ether oxygen is part of a benzene ring.
(ROOT (S (NP (NNS Ethers)) (VP (VBP are) (VP (VBN composed) (PP (IN of) (NP (NP (DT an) (NN oxygen) (NN atom)) (SBAR (WHNP (WDT that)) (S (VP (VBZ forms) (NP (JJ single) (NNS bonds)) (PP (IN with) (NP (CD two) (NN carbon) (NNS atoms)))))))))) (. .)))