With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Foo Fighters is an American band.
text_B: Football events were contested at the 1993 Summer Universiade in Buffalo , United States .. Football. Association football. 1993 Summer Universiade. 1993 Summer Universiade. Buffalo. Buffalo, New York. United States. United States
not_related.