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(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (ATVP_1 (VBZ_0 <apostrophe>s) (PRT_0 (RP_0 around))) (VP_5 (VBD_0 knew) (ADJP_0 (JJ_1 uneven) (PP_1 (IN_1 if) (S_2 (VP_0 (TO_0 to) (VP_1 (VBN_0 braked) (SBAR_0 (VP_0 (TO_0 to) (VP_1 (VB_0 help) (PRT_0 (RP_0 out))))))))))))) (DOT_0 .)))