an Entity references as follows:
USS Sable (IX-81) was a United States Navy training ship during World War II, originally built as the passenger ship Greater Buffalo, a sidewheel excursion steamboat. She was purchased by the Navy in 1942 and converted to a training aircraft carrier to be used on the Great Lakes. She lacked a hangar deck, elevators, or armament and was not a true warship, but she provided advanced training of naval aviators in carrier takeoffs and landings.