's a very very strong `` b + . '' 
(ROOT (S (VP (VBZ 's) (NP (DT a) (ADJP (RB very) (RB very) (JJ strong)) (`` ``) (NN b) (SYM +))) (. .) ('' '')))
(ROOT (S (VP (VBZ ) (NP (DT ) (ADJP (RB ) (RB ) (JJ )) (`` ) (NN ) (SYM ))) (. ) ('' )))