is not show-stoppingly hilarious , but scathingly witty 
(ROOT (VP (VBZ is) (RB not) (VP (VB show) (, -) (RB stoppingly) (JJ hilarious)) (, ,) (CC but) (ADJP (RB scathingly) (JJ witty))))
(ROOT (VP (VBZ ) (RB ) (VP (VB ) (, ) (RB ) (JJ )) (, ) (CC ) (ADJP (RB ) (JJ ))))