would leave the theater with a lower i.q. than when i had entered 
(ROOT (S (VP (MD would) (VP (VB leave) (NP (DT the) (NN theater)) (PP (IN with) (NP (NP (DT a) (JJR lower) (NN i.q.)) (PP (IN than) (SBAR (WHADVP (WRB when)) (S (NP (PRP i)) (VP (VBD had) (VP (VBN entered))))))))))))
(ROOT (S (VP (MD ) (VP (VB ) (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (JJR ) (NN )) (PP (IN ) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBD ) (VP (VBN ))))))))))))