I soon began smiled Did to their houses .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (NP_1 (PRP_0 I)) (ADVP_0 (RB_0 soon))) (VP_3 (VBD_1 began) (VP_2 (ATVP_4 (VBD_1 smiled) (RB_1 Did)) (PP_2 (TO_0 to) (NP_3 (PRPDOLLAR_0 their) (NNS_0 houses)))))) (DOT_0 .)))