back across the someone when this skin come up .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_1 back) (PP_0 (IN_1 across) (NP_2 (NP_5 (DT_0 the) (NN_2 someone)) (FRAG_0 (WRB_0 when))))) (NP_0 (DT_1 this) (NN_2 skin))) (VP_3 (VB_0 come) (PRT_0 (RP_0 up)))) (DOT_0 .)))