what gives human nature its unique feel is kaufman 's script 
(ROOT (S (SBAR (WHNP (WP what)) (S (VP (VBZ gives) (NP (JJ human) (NN nature)) (NP (PRP$ its) (JJ unique) (NN feel))))) (VP (VBZ is) (NP (NP (NNP kaufman) (POS 's)) (NN script)))))
(ROOT (S (SBAR (WHNP (WP )) (S (VP (VBZ ) (NP (JJ ) (NN )) (NP (PRP$ ) (JJ ) (NN ))))) (VP (VBZ ) (NP (NP (NNP ) (POS )) (NN )))))