self-deprecating , biting and witty feature 
(ROOT (NP (ADJP (ADJP (NN self) (HYPH -) (VBG deprecating)) (, ,) (VBG biting) (CC and) (JJ witty)) (NN feature)))
(ROOT (NP (ADJP (ADJP (NN ) (HYPH ) (VBG )) (, ) (VBG ) (CC ) (JJ )) (NN )))