a so-called ` comedy ' and not laugh 
(ROOT (NP (NP (DT a) (ADJP (RB so) (HYPH -) (VBN called)) (`` `) (NN comedy) ('' ')) (CC and) (RB not) (VB laugh)))
(ROOT (NP (NP (DT ) (ADJP (RB ) (HYPH ) (VBN )) (`` ) (NN ) ('' )) (CC ) (RB ) (VB )))