( ( An amine ) ( ( denotes ( ( an ( organic compound ) ) ( ( having ( ( ( ( ( a ( nitrogen ( atom singly ) ) ) or ) ( ( double bonded ) ( to ( a ( carbon atom ) ) ) ) ) and ) ( wherein ( ( ( the ( carbon ( atom bonded ) ) ) ( to ( the ( nitrogen atom ) ) ) ) ( ( is ( devoid ( of ( a ( double bond ) ) ) ) ) ( to ( ( ( oxygen ( , ( sulfur ( , ( selenium ( , ( or tellurium ) ) ) ) ) ) ) or ) ( triple bond ) ) ) ) ) ) ) ) ( to nitrogen ) ) ) ) . ) )
(ROOT (S (NP (DT An) (NN amine)) (VP (VBZ denotes) (NP (NP (DT an) (JJ organic) (NN compound)) (VP (VBG having) (NP (NP (DT a) (NN nitrogen) (NN atom) (NN singly)) (CC or) (NP (NP (QP (RB double) (CD bonded))) (PP (TO to) (NP (DT a) (NN carbon) (NN atom)))) (CC and) (SBAR (WHADVP (WRB wherein)) (S (NP (NP (DT the) (NN carbon) (NN atom) (NN bonded)) (PP (TO to) (NP (DT the) (NN nitrogen) (NN atom)))) (VP (VBZ is) (ADJP (JJ devoid) (PP (IN of) (NP (DT a) (JJ double) (NN bond)))) (PP (TO to) (NP (NP (NN oxygen) (, ,) (NN sulfur) (, ,) (NN selenium) (, ,) (CC or) (NN tellurium)) (CC or) (NP (JJ triple) (NN bond)))))))) (PP (TO to) (NP (NN nitrogen)))))) (. .)))
An amine denotes  an organic compound having a nitrogen atom singly or double bonded to a carbon atom and wherein the carbon atom bonded to the nitrogen atom is devoid of a double bond to oxygen, sulfur, selenium, or tellurium or triple bond to nitrogen.
(ROOT (S (NP (NNS Amines)) (VP (VBP are) (VP (VBN classified) (PP (VBG according) (PP (TO to) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NN carbon) (NNS atoms)) (VP (VBG bonded) (ADVP (RB directly)) (PP (TO to) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (JJ nitrogen) (NN atom))))))))))) (. .)))