( ( Where ( there ( are ( ( no ( direct ( carbon-carbon bonds ) ) ) ( between ( ( ( the ( C ( 6 ( C ( 3 units ) ) ) ) ) and ) ( they ( are ( linked ( by ( an ( ether ( oxygen atom ) ) ) ) ) ) ) ) ) ) ) ) ) ( ( the compound ) ( ( is ( named ( as ( an oxyneolignan ) ) ) ) . ) ) )
(ROOT (S (SBAR (WHADVP (WRB Where)) (S (NP (EX there)) (VP (VBP are) (NP (NP (DT no) (JJ direct) (JJ carbon-carbon) (NNS bonds)) (PP (IN between) (NP (NP (DT the) (NNP C) (CD 6) (NNP C) (CD 3) (NNS units)) (CC and) (S (NP (PRP they)) (VP (VBP are) (VP (VBN linked) (PP (IN by) (NP (DT an) (NN ether) (NN oxygen) (NN atom)))))))))))) (NP (DT the) (NN compound)) (VP (VBZ is) (VP (VBN named) (PP (IN as) (NP (DT an) (NN oxyneolignan))))) (. .)))
Where there are no direct carbon-carbon bonds between the C 6 C 3 units and they are linked by an ether oxygen atom the compound is named as an oxyneolignan.
(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))))))))) (. .)))