to yawn houses , him left up stepping .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (PP_2 (TO_0 to) (NP_3 (NN_0 yawn) (NNS_1 houses))) (COMMA_0 ,)) (NP_0 (PRP_1 him))) (VP_3 (ATVP_3 (VBD_2 left) (PRT_0 (RP_0 up))) (S_2 (VBG_0 stepping)))) (DOT_0 .)))