and The single virtue badly back onto them was why .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (CC_0 and) (NP_1 (NP_6 (ATNP_1 (DT_0 The) (JJ_1 single)) (NN_1 virtue)) (PP_0 (ATPP_0 (ADVP_0 (RB_1 badly) (RB_1 back)) (IN_2 onto)) (NP_1 (PRP_0 them))))) (VP_3 (VBD_1 was) (VP_2 (VBN_0 why)))) (DOT_0 .)))