She mutter that used on his flats .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 She)) (VP_4 (VBP_0 mutter) (SBAR_0 (S_1 (NP_0 (DT_1 that)) (VP_5 (VBD_2 used) (PP_2 (IN_0 on) (NP_3 (PRPDOLLAR_0 his) (NNS_0 flats)))))))) (DOT_0 .)))