She mumbled keep back the world about her school .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 She)) (VP_4 (VBD_2 mumbled) (S_2 (VP_0 (ATVP_0 (VB_0 keep) (PRT_0 (RP_0 back))) (NP_3 (NP_5 (DT_0 the) (NN_2 world)) (PP_0 (IN_1 about) (NP_2 (PRPDOLLAR_0 her) (NN_0 school)))))))) (DOT_0 .)))