( Indirectly ( ( as ( ( used ( in ( this subclass ) ) ) ( is ( meant ( to ( ( exclude compounds ) ( ( ( ( wherein ( ( a ( phosphorus atom ) ) ( ( ( ( is first ) ( bonded ( to ( ( a carbon ) ( of ( the ( pyridine ring ) ) ) ) ) ) ) , ) ( either ( ( directly or ) indirectly ) ) ) ) ) , ) and ) ( which ( carbon ( ( is eventually ) ( bonded ( to ( the ( pyridine ( ring ( nitrogen atom ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (FRAG (ADVP (RB Indirectly)) (SBAR (IN as) (S (S (VP (VBN used) (PP (IN in) (NP (DT this) (NNS subclass))))) (VP (VBZ is) (VP (VBN meant) (S (VP (TO to) (VP (VB exclude) (NP (NNS compounds)) (SBAR (SBAR (WHADVP (WRB wherein)) (S (NP (DT a) (NN phosphorus) (NN atom)) (VP (VBZ is) (ADVP (RB first)) (ADJP (JJ bonded) (PP (TO to) (NP (NP (DT a) (NN carbon)) (PP (IN of) (NP (DT the) (JJ pyridine) (NN ring)))))) (, ,) (ADVP (CC either) (RB directly) (CC or) (RB indirectly))))) (, ,) (CC and) (SBAR (WHNP (WDT which)) (S (NP (NN carbon)) (VP (VBZ is) (ADVP (RB eventually)) (VP (VBG bonded) (PP (TO to) (NP (DT the) (JJ pyridine) (NN ring) (NN nitrogen) (NN atom))))))))))))))) (. .)))
Indirectly as used in this subclass is meant to exclude compounds wherein a phosphorus atom is first bonded to a carbon of the pyridine ring, either directly or indirectly, and which carbon is eventually bonded to the pyridine ring nitrogen atom.
(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))))))))))) (. .)))