his chemistry with shimizu is very believable 
(ROOT (S (NP (NP (PRP$ his) (NN chemistry)) (PP (IN with) (NP (NNP shimizu)))) (VP (VBZ is) (ADJP (RB very) (JJ believable)))))
(ROOT (S (NP (NP (PRP$ ) (NN )) (PP (IN ) (NP (NNP )))) (VP (VBZ ) (ADJP (RB ) (JJ )))))