an ` a ' list cast and some strong supporting players 
(ROOT (NP (NP (DT an) (`` `) (DT a) ('' ') (NN list) (NN cast)) (CC and) (NP (DT some) (JJ strong) (VBG supporting) (NNS players))))
(ROOT (NP (NP (DT ) (`` ) (DT ) ('' ) (NN ) (NN )) (CC ) (NP (DT ) (JJ ) (VBG ) (NNS ))))