an ultra-loud blast of pointless mayhem , 
(ROOT (NP (NP (DT an) (ADJP (RB ultra) (HYPH -) (JJ loud)) (NN blast)) (PP (IN of) (NP (JJ pointless) (NN mayhem))) (, ,)))
(ROOT (NP (NP (DT ) (ADJP (RB ) (HYPH ) (JJ )) (NN )) (PP (IN ) (NP (JJ ) (NN ))) (, )))