i 'm giving it a strong thumbs up 
(ROOT (S (NP (PRP i)) (VP (VBP 'm) (VP (VBG giving) (NP (PRP it)) (NP (DT a) (JJ strong) (NNS thumbs) (RP up))))))
(ROOT (S (NP (PRP )) (VP (VBP ) (VP (VBG ) (NP (PRP )) (NP (DT ) (JJ ) (NNS ) (RP ))))))