there is back let unmistakably happy-go-lucky .
(ROOT_0 (S_0 (ATS_3 (NP_1 (EX_0 there)) (VP_4 (ATVP_1 (VBZ_0 is) (PRT_0 (RP_0 back))) (VP_5 (VBD_0 let) (ADJP_0 (RB_0 unmistakably) (JJ_0 happy-go-lucky))))) (DOT_0 .)))