surprised at the variety of tones in spielberg 's work 
(ROOT (ADJP (JJ surprised) (PP (IN at) (NP (NP (DT the) (NN variety)) (PP (IN of) (NP (NNS tones))) (PP (IN in) (NP (NP (NN spielberg) (POS 's)) (NN work)))))))
(ROOT (ADJP (JJ ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NNS ))) (PP (IN ) (NP (NP (NN ) (POS )) (NN )))))))