the class charge at Quechua Noah not back was teaching up .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (NP_1 (NP_6 (ATNP_1 (DT_0 the) (NN_3 class)) (NN_1 charge)) (PP_0 (IN_1 at) (NP_2 (NNP_1 Quechua) (NNP_0 Noah)))) (ADVP_0 (RB_1 not) (RB_1 back))) (VP_3 (VBD_1 was) (VP_2 (VBG_0 teaching) (PRT_0 (RP_0 up))))) (DOT_0 .)))