( ( human ( ( learning and ) behavior ) ) ; )
(ROOT (NP (NP (JJ human) (NN learning) (CC and) (NN behavior)) (: ;)))
human learning and behavior;
(ROOT (S (NP (JJ Learned) (NN behavior)) (VP (VP (VBZ occurs) (ADVP (RB only)) (PP (IN after) (NP (NN experience) (CC or) (NN practice)))) (CC and) (VP (VBZ describes) (NP (RBS most) (JJ human) (NNS behaviors)))) (. .)))