his work with actors is particularly impressive . 
(ROOT (S (NP (NP (PRP$ his) (NN work)) (PP (IN with) (NP (NNS actors)))) (VP (VBZ is) (ADJP (RB particularly) (JJ impressive))) (. .)))
(ROOT (S (NP (NP (PRP$ ) (NN )) (PP (IN ) (NP (NNS )))) (VP (VBZ ) (ADJP (RB ) (JJ ))) (. )))