The lesson was up going By badly colder .
(ROOT_0 (S_0 (ATS_3 (NP_1 (DT_1 The) (NN_2 lesson)) (VP_4 (ATVP_3 (VBD_2 was) (PRT_0 (RP_0 up))) (S_2 (VP_0 (VBG_0 going) (PP_2 (IN_0 By) (NP_6 (RB_1 badly) (JJR_0 colder))))))) (DOT_0 .)))