at sure emerald his able friends a world were .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (PP_1 (IN_1 at) (NP_2 (ATNP_0 (JJ_0 sure) (JJ_1 emerald)) (NP_4 (ATNP_0 (PRPDOLLAR_0 his) (JJ_0 able)) (NNS_0 friends)))) (NP_5 (DT_0 a) (NN_2 world))) (VP_3 (VBD_0 were))) (DOT_0 .)))