He know when a halt died to scared He .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (VBP_0 know) (SBAR_0 (WHADVP_0 (WRB_0 when)) (S_1 (NP_0 (DT_0 a) (NN_2 halt)) (VP_5 (VBD_2 died) (S_2 (VP_0 (TO_0 to) (VP_1 (VBN_0 scared) (NP_1 (PRP_0 He)))))))))) (DOT_0 .)))