then one friends told sleeping from four friend .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_0 then)) (NP_0 (CD_0 one) (NNS_0 friends))) (VP_3 (VBD_1 told) (VP_2 (VBG_0 sleeping) (PP_2 (IN_0 from) (NP_3 (CD_0 four) (NN_2 friend)))))) (DOT_0 .)))