is a lumbering load of hokum but 
(ROOT (S (VP (VBZ is) (NP (NP (DT a) (VBG lumbering) (NN load)) (PP (IN of) (NP (NN hokum))))) (CC but)))
(ROOT (S (VP (VBZ ) (NP (NP (DT ) (VBG ) (NN )) (PP (IN ) (NP (NN ))))) (CC )))