Bolivians of these rounded knoll narrowed n<apostrophe>t do back than .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NP_6 (NNP_1 Bolivians)) (PP_0 (IN_1 of) (NP_6 (ATNP_1 (DT_0 these) (JJ_1 rounded)) (NN_1 knoll)))) (VP_4 (ATVP_1 (VBD_1 narrowed) (RB_1 n<apostrophe>t)) (VP_1 (VB_0 do) (ADJP_0 (JJ_1 back) (PP_1 (IN_1 than)))))) (DOT_0 .)))