could have been crisper and punchier , 
(ROOT (S (VP (MD could) (VP (VB have) (VP (VBN been) (ADJP (JJR crisper) (CC and) (JJ punchier))))) (, ,)))
(ROOT (S (VP (MD ) (VP (VB ) (VP (VBN ) (ADJP (JJR ) (CC ) (JJ ))))) (, )))