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(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ATS_0 (ATS_0 (ADVP_0 (RB_0 below)) (NP_0 (EX_0 there))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)) (NP_0 (PRPDOLLAR_0 his) (NN_0 knit))) (VP_3 (VBD_1 discovered) (VP_2 (VBZ_0 <apostrophe>s) (SBAR_0 (WHNP_0 (WP_0 who)) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 be) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 have))))))))))) (DOT_0 .)))