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(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_0 (TICK_0 ``) (S_1 (NP_0 (NNP_0 Noah)) (VP_5 (ATVP_3 (VBN_0 why) (PP_2 (TO_0 to) (NP_3 (NNP_1 Bolivian)))) (PP_0 (IN_1 of) (NP_5 (DT_0 the) (NN_2 wall)))))) (NP_0 (PRP_1 it))) (VP_3 (VBD_1 was) (VP_2 (VBN_0 used) (PP_0 (IN_1 of) (NP_2 (DT_0 the) (NNS_1 classes)))))) (DOT_0 .)))