) becomes more specimen than character 
(ROOT (S (NP (-RRB- -RRB-)) (VP (VBZ becomes) (NP (NP (JJR more) (NN specimen)) (PP (IN than) (NP (NN character)))))))
(ROOT (S (NP (-RRB- )) (VP (VBZ ) (NP (NP (JJR ) (NN )) (PP (IN ) (NP (NN )))))))