go where we went 8 movies ago 
(ROOT (S (VP (VB go) (SBAR (WHADVP (WRB where)) (S (NP (PRP we)) (VP (VBD went) (PP (NP (CD 8) (NNS movies)) (RB ago))))))))
(ROOT (S (VP (VB ) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBD ) (PP (NP (CD ) (NNS )) (RB ))))))))