walk away without anyone truly knowing your identity 
(ROOT (S (VP (VB walk) (ADVP (RB away)) (PP (IN without) (S (NP (NN anyone)) (ADVP (RB truly)) (VP (VBG knowing) (NP (PRP$ your) (NN identity))))))))
(ROOT (S (VP (VB ) (ADVP (RB )) (PP (IN ) (S (NP (NN )) (ADVP (RB )) (VP (VBG ) (NP (PRP$ ) (NN ))))))))