more than capable of rewarding them 
(ROOT (ADJP (JJR more) (IN than) (ADJP (JJ capable) (PP (IN of) (S (VP (VBG rewarding) (NP (PRP them))))))))
(ROOT (ADJP (JJR ) (IN ) (ADJP (JJ ) (PP (IN ) (S (VP (VBG ) (NP (PRP ))))))))