It jerked to back moved of , Of A thunder .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 It)) (VP_4 (VBN_0 jerked) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_3 (ATVP_2 (ATVP_0 (ADVP_0 (RB_0 back)) (VBD_2 moved)) (PP_1 (IN_1 of))) (COMMA_0 ,)) (PP_0 (IN_1 Of) (NP_5 (DT_0 A) (NN_2 thunder)))))))) (DOT_0 .)))