a depraved , incoherent , instantly disposable piece 
(ROOT (NP (DT a) (JJ depraved) (, ,) (JJ incoherent) (, ,) (ADJP (RB instantly) (JJ disposable)) (NN piece)))
(ROOT (NP (DT ) (JJ ) (, ) (JJ ) (, ) (ADJP (RB ) (JJ )) (NN )))