back the story stifled Cochabamba and the surfer .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (RB_1 back) (NP_5 (DT_0 the) (NN_2 story))) (VP_3 (VBD_0 stifled) (NP_3 (ATNP_0 (NP_6 (NNP_1 Cochabamba)) (CC_0 and)) (NP_5 (DT_0 the) (NN_2 surfer))))) (DOT_0 .)))