tunic parents had know the halt of anything back .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NN_1 tunic) (NNS_0 parents)) (VP_4 (VBD_2 had) (S_2 (VP_0 (ATVP_4 (VB_0 know) (NP_2 (NP_5 (DT_0 the) (NN_2 halt)) (PP_0 (IN_1 of) (NP_5 (NN_3 anything))))) (ADVP_0 (RB_0 back)))))) (DOT_0 .)))