`` her heard Wiping to moved when himself did a eye perch across snow .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (TICK_0 ``) (NP_1 (PRP_0 her))) (VP_3 (VBD_1 heard) (VP_2 (VBG_0 Wiping) (S_2 (VP_0 (TO_0 to) (VP_1 (VBN_0 moved) (SBAR_0 (WHADVP_0 (WRB_0 when)) (S_1 (NP_1 (PRP_0 himself)) (VP_5 (VBD_1 did) (NP_3 (NP_6 (ATNP_1 (DT_0 a) (NN_3 eye)) (NN_1 perch)) (PP_0 (IN_1 across) (NP_2 (NN_3 snow))))))))))))) (DOT_0 .)))