back Then you stand up they of hat snow in Bolivian gravel .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_1 back) (RB_1 Then)) (NP_0 (PRP_1 you))) (VP_3 (ATVP_3 (ATVP_4 (VB_0 stand) (PP_1 (IN_1 up) (NP_0 (PRP_1 they)))) (PP_1 (IN_1 of) (NP_2 (NN_2 hat) (NN_3 snow)))) (PP_2 (IN_0 in) (NP_3 (NNP_1 Bolivian) (NN_3 gravel))))) (DOT_0 .)))