it 's supposed to be a romantic comedy 
(ROOT (S (NP (PRP it)) (VP (VBZ 's) (VP (VBN supposed) (S (VP (TO to) (VP (VB be) (NP (DT a) (JJ romantic) (NN comedy)))))))))
(ROOT (S (NP (PRP )) (VP (VBZ ) (VP (VBN ) (S (VP (TO ) (VP (VB ) (NP (DT ) (JJ ) (NN )))))))))