at the class house , Noah left He then .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (PP_2 (IN_0 at) (NP_6 (ATNP_1 (DT_0 the) (NN_3 class)) (NN_1 house))) (COMMA_0 ,)) (NP_0 (NNP_0 Noah))) (VP_3 (ATVP_4 (VBD_2 left) (NP_1 (PRP_0 He))) (ADVP_0 (RB_0 then)))) (DOT_0 .)))