he , parents knew back Several staying .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_0 (NP_0 (PRP_1 he)) (COMMA_0 ,)) (NNS_0 parents)) (VP_4 (ATVP_3 (VBD_1 knew) (ADJP_0 (RB_0 back) (JJ_0 Several))) (S_2 (VBG_0 staying)))) (DOT_0 .)))