is a feast for the eyes . 
(ROOT (S (VP (VBZ is) (NP (NP (DT a) (NN feast)) (PP (IN for) (NP (DT the) (NNS eyes))))) (. .)))
(ROOT (S (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NNS ))))) (. )))