With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Giacomo Casanova was a person who adventured.
text_B: The 1986 Copa Banco Galicia was a tennis tournament held in Buenos Aires , Argentina that was part of the 1986 Nabisco Grand Prix .. tennis. tennis. Buenos Aires. Buenos Aires. Argentina. Argentina. 1986 Nabisco Grand Prix. 1986 Nabisco Grand Prix. The tournament was held from November 10 through November 17 , 1986 .
not_related.