a good deal funnier than his original 
(ROOT (ADJP (ADJP (NP (DT a) (JJ good) (NN deal)) (JJR funnier)) (PP (IN than) (NP (PRP$ his) (NN original)))))
(ROOT (ADJP (ADJP (NP (DT ) (JJ ) (NN )) (JJR )) (PP (IN ) (NP (PRP$ ) (NN )))))