, it actually hurts to watch . 
(ROOT (S (, ,) (NP (PRP it)) (ADVP (RB actually)) (VP (VBZ hurts) (S (VP (TO to) (VP (VB watch))))) (. .)))
(ROOT (S (, ) (NP (PRP )) (ADVP (RB )) (VP (VBZ ) (S (VP (TO ) (VP (VB ))))) (. )))