is not the director at his most sparkling 
(ROOT (VP (VBZ is) (RB not) (NP (DT the) (NN director)) (PP (IN at) (NP (PRP$ his) (ADJP (RBS most) (JJ sparkling))))))
(ROOT (VP (VBZ ) (RB ) (NP (DT ) (NN )) (PP (IN ) (NP (PRP$ ) (ADJP (RBS ) (JJ ))))))