They would back else mutter in no the low light flats .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (ATVP_1 (MD_0 would) (ADVP_0 (RB_1 back) (RB_1 else))) (VP_5 (VBP_0 mutter) (PP_2 (IN_0 in) (NP_3 (ATNP_0 (RB_0 no) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 low)) (NN_1 light))) (NNS_0 flats)))))) (DOT_0 .)))