walter hill 's undisputed is like a 1940s warner bros. . 
(ROOT (S (NP (NP (NNP walter) (NN hill) (POS 's)) (JJ undisputed)) (VP (VBZ is) (PP (IN like) (NP (DT a) (JJ 1940s) (NN warner) (NN bros)))) (. .) (. .)))
(ROOT (S (NP (NP (NNP ) (NN ) (POS )) (JJ )) (VP (VBZ ) (PP (IN ) (NP (DT ) (JJ ) (NN ) (NN )))) (. ) (. )))