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(ROOT_0 (S_0 (ATS_2 (ATS_3 (ATS_1 (NP_1 (PRP_0 They)) (ADVP_0 (DT_1 The))) (VP_3 (ATVP_3 (ATVP_2 (ATVP_4 (VBG_0 sitting) (NP_0 (PRPDOLLAR_0 his) (NN_0 knit))) (ADVP_0 (RB_0 then))) (COMMA_0 ,)) (S_2 (VP_0 (TO_0 to) (VP_1 (VBN_0 happened) (NP_1 (PRP_0 He))))))) (DOT_0 .)) (APOSTROPHE_0 <apostrophe><apostrophe>)))