Behind flats , that forced over to tell they .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (PP_2 (IN_0 Behind) (NP_3 (NNS_1 flats))) (COMMA_0 ,)) (NP_0 (DT_1 that))) (VP_3 (ATVP_3 (VBD_2 forced) (PRT_0 (RP_0 over))) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 tell) (NP_0 (PRP_1 they))))))) (DOT_0 .)))