sheridan is painfully bad , a fourth-rate jim carrey who does n't understand the difference between dumb fun and just plain dumb . 
(ROOT (S (NP (NNP sheridan)) (VP (VBZ is) (ADJP (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 (NP (NNP )) (VP (VBZ ) (ADJP (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 )))))))))) (. )))