With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: London has murderers.
text_B: The 137th Air Refueling Group is an associate unit of the Oklahoma Air National Guard stationed at Tinker Air Force Base , Oklahoma .. Air National Guard. Air National Guard. Oklahoma Air National Guard. Oklahoma Air National Guard. Tinker Air Force Base. Tinker Air Force Base. National Guard. National Guard of the United States. If activated for federal service , the group is gained by Air Mobility Command .. group. group ( military aviation unit ). Air Mobility Command. Air Mobility Command. As of July 2015 , the group is in the process of returning to Will Rogers Air National Guard Base and converting from the air refueling to the special operations mission .. Air National Guard. Air National Guard. Will Rogers Air National Guard Base. Will Rogers Air National Guard Base. group. group ( military aviation unit ). air refueling. air refueling. special operations. special operations. National Guard. National Guard of the United States. The group was first activated during World War II as the 404th Fighter Group flying Republic P-47 Thunderbolts .. group. group ( military aviation unit ). World War II. World War II. The group served in the European Theater of Operations from May 1944 until the end of the war .. European Theater of Operations. European Theater of Operations. group. group ( military aviation unit ). It provided close air support to ground troops following Operation Overlord , the Normandy landings .. Operation Overlord. Operation Overlord. It earned a Distinguished Unit Citation , French Croix de Guerre with Palm and Belgian Fourragere before inactivating in the fall of 1945 .. Distinguished Unit Citation. Distinguished Unit Citation. French Croix de Guerre with Palm. Croix de guerre 1939-1945 ( France ). Belgian Fourragere. Belgian Fourragere. The group was redesignated the 137th Fighter Group and allotted to the National Guard in 1946 , with squadrons in Oklahoma and Kansas .. group. group ( military aviation unit ). National Guard. National Guard of the United States. During the Korean War , it was activated and deployed to France as the 137th Fighter-Bomber Group , where it opened Chaumont Air Base .. Korean War. Korean War. Chaumont Air Base. Chaumont Air Base. The unit was replaced in France by a regular unit and returned without personnel or equipment to state control .. In 1955 , it converted from the fighter bomber to the fighter interceptor mission , and two years later lost its squadrons in Tulsa and in Kansas to new fighter groups .. fighter bomber. fighter bomber. fighter interceptor. fighter interceptor. Tulsa. Tulsa. From 1961 until it was inactivated in 1975 , the group engaged in strategic and tactical airlift .. group. group ( military aviation unit ). airlift. airlift. The group was activated again in 1992 and converted to the air refueling mission in 2008 .. group. group ( military aviation unit ). air refueling. air refueling
not_related.