it 's tough to watch , but it 's a fantastic movie . 
(ROOT (S (S (NP (PRP it)) (VP (VBZ 's) (ADJP (JJ tough) (SBAR (S (VP (TO to) (VP (VB watch)))))))) (, ,) (CC but) (S (NP (PRP it)) (VP (VBZ 's) (NP (DT a) (JJ fantastic) (NN movie)))) (. .)))
(ROOT (S (S (NP (PRP )) (VP (VBZ ) (ADJP (JJ ) (SBAR (S (VP (TO ) (VP (VB )))))))) (, ) (CC ) (S (NP (PRP )) (VP (VBZ ) (NP (DT ) (JJ ) (NN )))) (. )))