is likely to find compelling 
(ROOT (S (VP (VBZ is) (ADJP (JJ likely) (S (VP (TO to) (VP (VB find) (S (ADJP (JJ compelling))))))))))
(ROOT (S (VP (VBZ ) (ADJP (JJ ) (S (VP (TO ) (VP (VB ) (S (ADJP (JJ ))))))))))