's because the laughs come from fairly basic comedic constructs 
(ROOT (VP (VBZ 's) (SBAR (IN because) (S (NP (DT the) (NNS laughs)) (VP (VBP come) (PP (IN from) (NP (ADJP (RB fairly) (JJ basic)) (JJ comedic) (NNS constructs))))))))
(ROOT (VP (VBZ ) (SBAR (IN ) (S (NP (DT ) (NNS )) (VP (VBP ) (PP (IN ) (NP (ADJP (RB ) (JJ )) (JJ ) (NNS ))))))))