( ( ( An example ) ( of ( innate behavior ) ) ) ( ( is imprinting ) . ) )
(ROOT (S (NP (NP (DT An) (NN example)) (PP (IN of) (NP (JJ innate) (NN behavior)))) (VP (VBZ is) (VP (VBG imprinting))) (. .)))
An example of innate behavior is imprinting.
(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))))) (. .)))