he provides a strong itch to explore more . 
(ROOT (S (NP (PRP he)) (VP (VBZ provides) (NP (DT a) (JJ strong) (NN itch) (S (VP (TO to) (VP (VB explore) (NP (JJR more))))))) (. .)))
(ROOT (S (NP (PRP )) (VP (VBZ ) (NP (DT ) (JJ ) (NN ) (S (VP (TO ) (VP (VB ) (NP (JJR ))))))) (. )))