( ( Make sure ) ( ( ( ( the ( terminal nitrogen ) ) ( has ( ( ( two ( bonded ( hydrogen atoms ) ) ) and ) ( ( the ( nitrogen atom ) ) ( attached ( to ( two carbons ) ) ) ) ) ) ) , ) ( ( has ( one ( bonded ( hydrogen atoms ) ) ) ) . ) ) )
(ROOT (S (S (VP (VB Make) (ADJP (JJ sure)))) (PRN (S (NP (DT the) (NN terminal) (NN nitrogen)) (VP (VBZ has) (NP (NP (CD two) (VBN bonded) (NN hydrogen) (NNS atoms)) (CC and) (NP (NP (DT the) (NN nitrogen) (NN atom)) (VP (VBN attached) (PP (TO to) (NP (CD two) (NNS carbons)))))))) (, ,)) (VP (VBZ has) (NP (CD one) (JJ bonded) (NN hydrogen) (NNS atoms))) (. .)))
Make sure the terminal nitrogen has two bonded hydrogen atoms and the nitrogen atom attached to two carbons, has one bonded hydrogen atoms.
(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))))))))))) (. .)))