if way could colder and colder watched over over lesson .
(ROOT_0 (S_0 (ATS_3 (NP_1 (IN_2 if) (NN_3 way)) (VP_4 (ATVP_1 (MD_0 could) (ADVP_0 (ATADVP_2 (JJR_0 colder) (CC_0 and)) (JJR_0 colder))) (VP_5 (ATVP_3 (VBD_2 watched) (PRT_0 (RP_0 over))) (PP_0 (IN_1 over) (NP_2 (NN_3 lesson)))))) (DOT_0 .)))