to be sure Another remains for back .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 be) (ADJP_0 (JJ_0 sure))))) (NP_0 (DT_1 Another))) (VP_3 (VBZ_0 remains) (PP_1 (IN_1 for) (NP_2 (RB_1 back))))) (DOT_0 .)))