human nature , in short , is n't nearly as funny as it thinks it is ; neither is it as smart . 
(ROOT (S (S (NP (JJ human) (NN nature)) (, ,) (PP (IN in) (ADJP (JJ short))) (, ,) (VP (VBZ is) (RB n't) (ADJP (ADJP (RB nearly) (RB as) (JJ funny)) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ thinks) (SBAR (S (NP (PRP it)) (VP (VBZ is)))))))))) (, ;) (SINV (CC neither) (VBZ is) (NP (PRP it)) (ADJP (RB as) (JJ smart))) (. .)))
(ROOT (S (S (NP (JJ ) (NN )) (, ) (PP (IN ) (ADJP (JJ ))) (, ) (VP (VBZ ) (RB ) (ADJP (ADJP (RB ) (RB ) (JJ )) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (SBAR (S (NP (PRP )) (VP (VBZ )))))))))) (, ) (SINV (CC ) (VBZ ) (NP (PRP )) (ADJP (RB ) (JJ ))) (. )))