it back n<apostrophe>t was stepping on the snow the big kids .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (NP_1 (PRP_1 it)) (ADVP_0 (RB_1 back) (RB_1 n<apostrophe>t))) (VP_3 (VBD_1 was) (VP_2 (VBG_0 stepping) (PP_2 (IN_0 on) (NP_3 (ATNP_0 (DT_0 the) (NN_3 snow)) (NP_5 (ATNP_1 (DT_0 the) (JJ_1 big)) (NNS_1 kids))))))) (DOT_0 .)))