( ( ( Amine Derivatives ) ( of ( ammonia ( ( in which ) ( ( ( ( one or ) more ) ( hydrogen atoms ) ) ( have ( been ( replaced ( by ( organic groups ) ) ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Amine) (NNP Derivatives)) (PP (IN of) (NP (NP (NN ammonia)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (QP (CD one) (CC or) (JJR more)) (NN hydrogen) (NNS atoms)) (VP (VBP have) (VP (VBN been) (VP (VBN replaced) (PP (IN by) (NP (JJ organic) (NNS groups)))))))))) (. .)))
Amine Derivatives of ammonia in which one or more hydrogen atoms have been replaced by organic groups.
(ROOT (S (NP (DT An) (NN amine)) (VP (VBZ is) (NP (NP (DT an) (JJ organic) (NN compound)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB be) (VP (VBN considered) (S (VP (TO to) (VP (VB be) (NP (NP (DT a) (NN derivative)) (PP (IN of) (NP (NN ammonia)))))))))))))) (. .)))
An amine is an organic compound that can be considered to be a derivative of ammonia.