is tenderly observant of his characters 
(ROOT (VP (VBZ is) (ADJP (RB tenderly) (JJ observant) (PP (IN of) (NP (PRP$ his) (NNS characters))))))
(ROOT (VP (VBZ ) (ADJP (RB ) (JJ ) (PP (IN ) (NP (PRP$ ) (NNS ))))))