're never quite sure where self-promotion ends and the truth begins 
(ROOT (S (VP (VBP 're) (ADVP (RB never)) (ADJP (RB quite) (JJ sure) (SBAR (WHADVP (WRB where)) (S (S (NP (NN self) (HYPH -) (NN promotion)) (VP (VBZ ends))) (CC and) (S (NP (DT the) (NN truth)) (VP (VBZ begins)))))))))
(ROOT (S (VP (VBP ) (ADVP (RB )) (ADJP (RB ) (JJ ) (SBAR (WHADVP (WRB )) (S (S (NP (NN ) (HYPH ) (NN )) (VP (VBZ ))) (CC ) (S (NP (DT ) (NN )) (VP (VBZ )))))))))