enriched by a strong and unforced supporting cast . 
(ROOT (S (VP (VBN enriched) (PP (IN by) (NP (DT a) (ADJP (JJ strong) (CC and) (JJ unforced)) (VBG supporting) (NN cast)))) (. .)))
(ROOT (S (VP (VBN ) (PP (IN ) (NP (DT ) (ADJP (JJ ) (CC ) (JJ )) (VBG ) (NN )))) (. )))