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(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 She)) (VP_4 (ATVP_1 (MD_0 <apostrophe>ll) (RB_1 later)) (VP_1 (ATVP_2 (ATVP_4 (VBD_0 heard) (RB_1 so)) (PP_1 (IN_1 of) (NP_2 (NN_3 muscle)))) (PP_1 (IN_1 Of) (NP_2 (NN_3 boy)))))) (DOT_0 .)))