you may be surprised at the variety of tones in spielberg 's work . 
(ROOT (S (NP (PRP you)) (VP (MD may) (VP (VB be) (VP (VBN surprised) (PP (IN at) (NP (NP (DT the) (NN variety)) (PP (IN of) (NP (NNS tones))) (PP (IN in) (NP (NP (NNP spielberg) (POS 's)) (NN work)))))))) (. .)))
(ROOT (S (NP (PRP )) (VP (MD ) (VP (VB ) (VP (VBN ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NNS ))) (PP (IN ) (NP (NP (NNP ) (POS )) (NN )))))))) (. )))