is painfully bad , a fourth-rate jim carrey who does n't understand the difference between dumb fun and just plain dumb . 
(ROOT (S (VP (VBZ is) (ADJP (RB painfully) (JJ bad)) (, ,) (NP (NP (DT a) (NML (JJ fourth) (HYPH -) (NN rate)) (NN jim) (NN carrey)) (SBAR (WHNP (WP who)) (S (VP (VBZ does) (RB n't) (VP (VB understand) (NP (NP (NP (DT the) (NN difference)) (PP (IN between) (NP (JJ dumb) (NN fun)))) (CC and) (ADJP (RB just) (JJ plain) (JJ dumb))))))))) (. .)))
(ROOT (S (VP (VBZ ) (ADJP (RB ) (JJ )) (, ) (NP (NP (DT ) (NML (JJ ) (HYPH ) (NN )) (NN ) (NN )) (SBAR (WHNP (WP )) (S (VP (VBZ ) (RB ) (VP (VB ) (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (JJ ) (NN )))) (CC ) (ADJP (RB ) (JJ ) (JJ ))))))))) (. )))