know what it wants to be when it grows up 
(ROOT (S (VP (VB know) (SBAR (WHNP (WP what)) (S (NP (PRP it)) (VP (VBZ wants) (S (VP (TO to) (VP (VB be))))))) (SBAR (WHADVP (WRB when)) (S (NP (PRP it)) (VP (VBZ grows) (PRT (RP up))))))))
(ROOT (S (VP (VB ) (SBAR (WHNP (WP )) (S (NP (PRP )) (VP (VBZ ) (S (VP (TO ) (VP (VB ))))))) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBZ ) (PRT (RP ))))))))