She heard who to sleeping out from he At .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 She)) (VP_4 (VBD_0 heard) (SBAR_0 (WHNP_0 (WP_0 who)) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_2 (ATVP_0 (VBG_0 sleeping) (PRT_0 (RP_0 out))) (PP_1 (IN_1 from) (NP_0 (PRP_1 he)))) (PP_1 (IN_1 At)))))))) (DOT_0 .)))