her refer They to happened The face-up .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 her)) (VP_4 (VBP_0 refer) (SBAR_0 (S_2 (NP_1 (PRP_0 They)) (VP_0 (TO_0 to) (VP_1 (VBN_0 happened) (NP_1 (DT_1 The) (NN_2 face-up)))))))) (DOT_0 .)))