that only self-aware neurotics engage in 
(ROOT (SBAR (WHNP (IN that)) (S (NP (RB only) (ADJP (NN self) (HYPH -) (JJ aware)) (NNS neurotics)) (VP (VBP engage) (PP (IN in))))))
(ROOT (SBAR (WHNP (IN )) (S (NP (RB ) (ADJP (NN ) (HYPH ) (JJ )) (NNS )) (VP (VBP ) (PP (IN ))))))