They was never know back Maybe , by a house .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (ATVP_1 (VBD_1 was) (ADVP_0 (RB_0 never))) (VP_5 (ATVP_3 (ATVP_2 (ATVP_4 (VB_0 know) (ADVP_0 (RB_0 back))) (ADVP_0 (RB_0 Maybe))) (COMMA_0 ,)) (PP_0 (IN_1 by) (NP_5 (DT_0 a) (NN_2 house)))))) (DOT_0 .)))