them refer who to teach going darn remains .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 them)) (VP_4 (VBP_0 refer) (SBAR_0 (WHNP_0 (WP_0 who)) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 teach) (VP_2 (VBG_0 going) (ADVP_0 (RB_1 darn) (NP_4 (NNS_1 remains)))))))))) (DOT_0 .)))