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(ROOT_0 (S_0 (ATS_3 (ATS_1 (CC_0 and) (NP_1 (NP_1 (ATNP_1 (PRPDOLLAR_0 his) (JJR_0 stronger)) (NN_0 friend)) (SBAR_0 (WHNP_0 (WP_0 what)) (S_2 (VP_0 (VBG_0 teaching) (PP_2 (IN_0 Within) (NP_3 (NN_0 side) (NNS_1 classes)))))))) (VP_3 (VBD_0 discovered) (NP_3 (NP_5 (DT_0 a) (NN_2 moonlight)) (PP_0 (IN_1 of) (NP_2 (NN_3 none)))))) (DOT_0 .)))