an ultra-loud blast of pointless mayhem , going nowhere fast 
(ROOT (NP (NP (NP (DT an) (ADJP (JJ ultra) (JJ -loud)) (NN blast)) (PP (IN of) (NP (JJ pointless) (NN mayhem)))) (, ,) (VP (VBG going) (ADVP (RB nowhere)) (ADVP (RB fast)))))
(ROOT (NP (NP (NP (DT ) (ADJP (JJ ) (JJ )) (NN )) (PP (IN ) (NP (JJ ) (NN )))) (, ) (VP (VBG ) (ADVP (RB )) (ADVP (RB )))))