( ( The ( final product ) ) ( ( ( ( may ( be ( formed ( from ( ( a ( heterocyclic reactant ) ) ( having ( ( a ( nitrogen atom ) ) ( as ( a ( ring member ) ) ) ) ) ) ) ) ) ) or ) ( may ( be ( formed ( from ( a ( nonheterocyclic ( nitrogen-containing compound ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ final) (NN product)) (VP (VP (MD may) (VP (VB be) (VP (VBN formed) (PP (IN from) (NP (NP (DT a) (JJ heterocyclic) (NN reactant)) (VP (VBG having) (NP (NP (DT a) (NN nitrogen) (NN atom)) (PP (IN as) (NP (DT a) (NN ring) (NN member)))))))))) (CC or) (VP (MD may) (VP (VB be) (VP (VBN formed) (PP (IN from) (NP (DT a) (JJ nonheterocyclic) (JJ nitrogen-containing) (NN compound))))))) (. .)))
The final product may be formed from a heterocyclic reactant having a nitrogen atom as a ring member or may be formed from a nonheterocyclic nitrogen-containing compound.
(ROOT (S (NP (DT A) (JJ heterocyclic) (NN compound)) (VP (VBZ contains) (NP (NP (NNS atoms)) (PP (IN of) (NP (NP (QP (CD two) (CC or) (JJR more)) (JJ different) (NNS elements)) (PP (IN in) (NP (PRP$ its) (NN ring) (NN structure))))))) (. .)))