's hardly any fun to watch 
(ROOT (VP (VBZ 's) (ADVP (RB hardly)) (NP (NP (DT any) (NN fun)) (SBAR (S (VP (TO to) (VP (VB watch))))))))
(ROOT (VP (VBZ ) (ADVP (RB )) (NP (NP (DT ) (NN )) (SBAR (S (VP (TO ) (VP (VB ))))))))