( Processes ( ( wherein ( ( the ( heterocyclic compound ) ) ( contains ( nitrogen ( in ( the ring ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Processes)) (VP (VBD wherein) (SBAR (S (NP (DT the) (JJ heterocyclic) (NN compound)) (VP (VBZ contains) (NP (NP (NN nitrogen)) (PP (IN in) (NP (DT the) (NN ring)))))))) (. .)))
Processes wherein the heterocyclic compound contains nitrogen in the ring.
(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))))))) (. .)))