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(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (VBZ_0 <apostrophe>s) (S_1 (NP_0 (PRP_1 she)) (VP_5 (VBD_1 was) (NP_3 (NP_6 (ATNP_1 (DT_0 the) (JJ_1 gravel)) (NN_1 cut)) (PP_0 (IN_1 Of) (NP_2 (NN_3 snow)))))))) (DOT_0 .)))