romp that 's always fun to watch . 
(ROOT (NP (NP (NN romp)) (SBAR (WHNP (DT that)) (S (VP (VBZ 's) (ADVP (RB always)) (ADJP (JJ fun) (SBAR (S (VP (TO to) (VP (VB watch))))))))) (. .)))
(ROOT (NP (NP (NN )) (SBAR (WHNP (DT )) (S (VP (VBZ ) (ADVP (RB )) (ADJP (JJ ) (SBAR (S (VP (TO ) (VP (VB ))))))))) (. )))