works - mostly due to its superior cast 
(ROOT (NP (NP (NNS works)) (, -) (PP (ADVP (RB mostly)) (IN due) (IN to) (NP (PRP$ its) (JJ superior) (NN cast)))))
(ROOT (NP (NP (NNS )) (, ) (PP (ADVP (RB )) (IN ) (IN ) (NP (PRP$ ) (JJ ) (NN )))))