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(ROOT_0 (S_0 (ATS_3 (ATS_4 (ATS_0 (COMMA_0 ,) (PP_2 (IN_0 on) (NP_3 (NP_4 (ATNP_0 (JJ_0 hard) (JJ_1 muddy)) (POS_0 <apostrophe>s)) (NN_2 hat)))) (CC_0 and)) (S_1 (NP_0 (DT_1 that)) (VP_5 (ATVP_1 (VBD_1 began) (ADVP_0 (RB_0 aside))) (VP_1 (VB_0 be))))) (DOT_0 .)))