you have to admit it 's semi-amusing to watch robert deniro belt out `` when you 're a jet 
(ROOT (S (NP (PRP you)) (VP (VBP have) (S (VP (TO to) (VP (VB admit) (SBAR (S (NP (NP (PRP it))) (VP (VBZ 's) (ADJP (JJ semi-amusing)) (S (VP (TO to) (VP (VB watch) (S (NP (NNP robert) (NNP deniro)) (VP (NN belt) (PRT (RP out)) (`` ``) (SBAR (WHADVP (WRB when)) (S (NP (PRP you)) (VP (VBP 're) (NP (DT a) (NN jet)))))))))))))))))))
(ROOT (S (NP (PRP )) (VP (VBP ) (S (VP (TO ) (VP (VB ) (SBAR (S (NP (NP (PRP ))) (VP (VBZ ) (ADJP (JJ )) (S (VP (TO ) (VP (VB ) (S (NP (NNP ) (NNP )) (VP (NN ) (PRT (RP )) (`` ) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBP ) (NP (DT ) (NN )))))))))))))))))))