( ( An ether ) ( ( is ( ( an ( organic compound ) ) ( ( having ( ( the ( general ( structure C-O-C ) ) ) ( wherein ( ( ( the ( carbon bonded ) ) ( to ( the ( oxygen atom ) ) ) ) ( ( can not ) ( be ( ( double bonded ) ( to ( ( ( oxygen ( , ( sulfur ( , ( selenium ( , ( or tellurium ) ) ) ) ) ) ) or ) ( triple bonded ) ) ) ) ) ) ) ) ) ) ( to nitrogen ) ) ) ) . ) )
(ROOT (S (NP (DT An) (NN ether)) (VP (VBZ is) (NP (NP (DT an) (JJ organic) (NN compound)) (VP (VBG having) (NP (NP (DT the) (JJ general) (NN structure) (NN C-O-C)) (SBAR (WHADVP (WRB wherein)) (S (NP (NP (DT the) (NN carbon) (VBN bonded)) (PP (TO to) (NP (DT the) (NN oxygen) (NN atom)))) (VP (MD can) (RB not) (VP (VB be) (NP (NP (QP (RB double) (CD bonded))) (PP (TO to) (NP (NP (NN oxygen) (, ,) (NN sulfur) (, ,) (NN selenium) (, ,) (CC or) (NN tellurium)) (CC or) (NP (JJ triple) (NNS bonded)))))))))) (PP (TO to) (NP (NN nitrogen)))))) (. .)))
An ether is an organic compound having the general structure C-O-C wherein the carbon bonded to the oxygen atom cannot be double bonded to oxygen, sulfur, selenium, or tellurium or triple bonded to nitrogen.
(ROOT (S (NP (DT An) (NN ether)) (VP (VBZ is) (NP (NP (DT an) (JJ organic) (NN compound)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (CD two) (NN hydrocarbon) (NNS groups)) (VP (VBP are) (VP (VBG bonded) (PP (TO to) (NP (DT the) (JJ same) (NN oxygen) (NN atom))))))))) (. .)))