( It ( ( seems ( to ( be ( ( an ( innate behavior ) ) ( in ( all ( of us ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ seems) (S (VP (TO to) (VP (VB be) (NP (NP (DT an) (JJ innate) (NN behavior)) (PP (IN in) (NP (NP (DT all)) (PP (IN of) (NP (PRP us)))))))))) (. .)))
It seems to be an innate behavior in all of us.
(ROOT (S (NP (NNP Reflex) (NNS behaviors)) (VP (VBP are) (NP (NP (DT the) (RB only) (JJ innate) (NNS behaviors)) (PP (IN in) (NP (NNS humans))))) (. .)))