( not ( ( ( only ( human behavior ) ) ( but ( ( the policy ) ( of nations ) ) ) ) . ) )
(ROOT (FRAG (RB not) (NP (NP (RB only) (JJ human) (NN behavior)) (PP (CC but) (NP (NP (DT the) (NN policy)) (PP (IN of) (NP (NNS nations)))))) (. .)))
not only human behavior but the policy of nations.
(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))))) (. .)))