because the intelligence level of the characters must be low , very low , very very low , for the masquerade to work , the movie contains no wit , only labored gags . 
(ROOT (S (SBAR (IN because) (S (NP (NP (DT the) (NN intelligence) (NN level)) (PP (IN of) (NP (DT the) (NNS characters)))) (VP (MD must) (VP (VB be) (ADJP (JJ low) (, ,) (ADJP (RB very) (JJ low)) (, ,) (ADJP (RB very) (RB very) (JJ low)) (, ,)) (SBAR (IN for) (S (NP (DT the) (NN masquerade)) (VP (TO to) (VP (NN work))))))))) (, ,) (NP (DT the) (NN movie)) (VP (VBZ contains) (NP (NP (DT no) (NN wit)) (, ,) (NP (RB only) (VBN labored) (NNS gags)))) (. .)))
(ROOT (S (SBAR (IN ) (S (NP (NP (DT ) (NN ) (NN )) (PP (IN ) (NP (DT ) (NNS )))) (VP (MD ) (VP (VB ) (ADJP (JJ ) (, ) (ADJP (RB ) (JJ )) (, ) (ADJP (RB ) (RB ) (JJ )) (, )) (SBAR (IN ) (S (NP (DT ) (NN )) (VP (TO ) (VP (NN ))))))))) (, ) (NP (DT ) (NN )) (VP (VBZ ) (NP (NP (DT ) (NN )) (, ) (NP (RB ) (VBN ) (NNS )))) (. )))