that defies classification and is as thought-provoking as it 
(ROOT (S (NP (DT that)) (VP (VP (VBZ defies) (NP (NN classification))) (CC and) (VP (VBZ is) (ADJP (ADJP (IN as) (VBN thought) (HYPH -) (VBG provoking)) (SBAR (IN as) (FRAG (NP (PRP it)))))))))
(ROOT (S (NP (DT )) (VP (VP (VBZ ) (NP (NN ))) (CC ) (VP (VBZ ) (ADJP (ADJP (IN ) (VBN ) (HYPH ) (VBG )) (SBAR (IN ) (FRAG (NP (PRP )))))))))