With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John McEnroe is known for his tennis skills.
text_B: The III Bomber Command is an inactive United States Air Force unit .. United States. United States. United States Air Force. United States Air Force. Its last assignment was with Third Air Force stationed at MacDill Field , Florida .. Third Air Force. Third Air Force. MacDill Field. MacDill Field. Florida. Florida. It was inactivated on 8 April 1946 .
not_related.