( ( ( ( ( Insight learning ) , ) ( which ( is ( based ( on ( past ( ( experience and ) reasoning ) ) ) ) ) ) ) , ) ( ( is ( ( a hallmark ) ( of ( the ( human animal ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Insight) (NNP learning)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBN based) (PP (IN on) (NP (JJ past) (NN experience) (CC and) (NN reasoning))))))) (, ,)) (VP (VBZ is) (NP (NP (DT a) (NN hallmark)) (PP (IN of) (NP (DT the) (JJ human) (NN animal))))) (. .)))
Insight learning, which is based on past experience and reasoning, is a hallmark of the human animal.
(ROOT (S (NP (NNP Insight) (NNP learning)) (VP (VBZ is) (VP (VBN based) (PP (IN on) (NP (JJ past) (NN experience) (CC and) (NN reasoning))))) (. .)))