are more involving than this mess 
(ROOT (VP (VBP are) (ADJP (ADJP (RBR more) (VBG involving)) (PP (IN than) (NP (DT this) (NN mess))))))
(ROOT (VP (VBP ) (ADJP (ADJP (RBR ) (VBG )) (PP (IN ) (NP (DT ) (NN ))))))