lookin ' for sin , american-style ? 
(ROOT (NP (S (VP (NN lookin) ('' ') (PP (IN for) (NP (NN sin))))) (, ,) (NP (JJ american) (HYPH -) (NN style)) (. ?)))
(ROOT (NP (S (VP (NN ) ('' ) (PP (IN ) (NP (NN ))))) (, ) (NP (JJ ) (HYPH ) (NN )) (. )))