the film is a verbal duel between two gifted performers . 
(ROOT (S (NP (DT the) (NN film)) (VP (VBZ is) (NP (NP (DT a) (JJ verbal) (NN duel)) (PP (IN between) (NP (CD two) (VBN gifted) (NNS performers))))) (. .)))
(ROOT (S (NP (DT ) (NN )) (VP (VBZ ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (CD ) (VBN ) (NNS ))))) (. )))