i do n't know what she 's doing in here 
(ROOT (S (NP (PRP i)) (VP (VBP do) (RB n't) (VP (VB know) (SBAR (WHNP (WP what)) (S (NP (PRP she)) (VP (VBZ 's) (VP (VBG doing) (PP (IN in) (ADVP (RB here)))))))))))
(ROOT (S (NP (PRP )) (VP (VBP ) (RB ) (VP (VB ) (SBAR (WHNP (WP )) (S (NP (PRP )) (VP (VBZ ) (VP (VBG ) (PP (IN ) (ADVP (RB )))))))))))