( ( On ( ( personality factors ) ( in SLA ) ) ) ( , ( ( ( Gass and ) Selinker ) ( ( find ( ( ( no evidence ) ( of ( any traits ) ) ) ( able ( to ( ( predict success ) ( in ( learning ( an L2 ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN On) (NP (NP (NN personality) (NNS factors)) (PP (IN in) (NP (NNP SLA))))) (, ,) (NP (NNP Gass) (CC and) (NNP Selinker)) (VP (VBP find) (S (NP (NP (DT no) (NN evidence)) (PP (IN of) (NP (DT any) (NNS traits)))) (ADJP (JJ able) (S (VP (TO to) (VP (VB predict) (NP (NN success)) (PP (IN in) (S (VP (VBG learning) (NP (DT an) (NN L2))))))))))) (. .)))
On personality factors in SLA, Gass and Selinker find no evidence of any traits able to predict success in learning an L2.
(ROOT (S (S (VP (VBG Being) (ADJP (JJ able) (S (VP (TO to) (VP (VB read))))))) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (DT a) (JJ learned) (NN trait))))) (. .)))