a snow , to back so smiled braked to .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (NP_1 (ATNP_0 (NP_0 (DT_0 a) (NN_2 snow)) (COMMA_0 ,)) (S_2 (TO_0 to))) (ADVP_0 (RB_1 back) (RB_1 so))) (VP_3 (VBD_1 smiled) (VP_2 (VBN_0 braked) (S_2 (VP_0 (TO_0 to)))))) (DOT_0 .)))