Question: Enola Gay was one of the bombers that targeted the largest city on what Japanese island?

Context paragraphs:
Nagasaki: Nagasaki (長崎市 , Nagasaki-shi , ]) (   ) is the capital and the largest city of Nagasaki Prefecture on the island of Kyushu in Japan.  It became a centre of Portuguese and Dutch influence in the 16th through 19th centuries, and the Churches and Christian Sites in Nagasaki have been proposed for inscription on the UNESCO World Heritage List.  Part of Nagasaki was home to a major Imperial Japanese Navy base during the First Sino-Japanese War and Russo-Japanese War.  Its name means "long cape".

George R. Caron: Technical Sergeant George Robert "Bob" Caron (October 31, 1919 – June 3, 1995) was the tail gunner, the only defender of the twelve crewmen, aboard the B-29 "Enola Gay" during the historic bombing of the Japanese city of Hiroshima on 6 August 1945.  Facing the rear of the B-29, his vantage point made him the first man to witness the cataclysmic growth of the mushroom cloud over Hiroshima.

Shuntaro Hida: Shuntaro Hida (1 January 1917 – 20 March 2017) was a Japanese physician who was an eyewitness when the "Little Boy" atomic bomb was dropped on Hiroshima by the "Enola Gay" on 6 August 1945.  He treated survivors as a medical doctor and wrote about the effects of radiation on the human body.

Morris R. Jeppson: Morris Richard Jeppson (June 23, 1922 – March 30, 2010) was a Second Lieutenant in the United States Army Air Forces during World War II.  He served as assistant weaponeer on the "Enola Gay", which dropped the first atomic bomb on the city of Hiroshima, Japan on August 6, 1945.

Little Boy: "Little Boy" was the codename for the atomic bomb dropped on the Japanese city of Hiroshima on 6 August 1945 during World War II by the Boeing B-29 Superfortress "Enola Gay", piloted by Colonel Paul W. Tibbets, Jr., commander of the 509th Composite Group of the United States Army Air Forces.  It was the first atomic bomb to be used in warfare.  The Hiroshima bombing was the second artificial nuclear explosion in history, after the Trinity test, and the first uranium-based detonation.  It exploded with an energy of approximately 15 ktonTNT .  The bomb caused significant destruction to the city of Hiroshima and its occupants.

Operation Downfall: Operation Downfall was the proposed Allied plan for the invasion of Japan near the end of World War II.  The planned operation was abandoned when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, the Soviet declaration of war and the Soviet invasion of Manchuria.  The operation had two parts: Operations Olympic and Coronet.  Set to begin in November 1945, Operation Olympic was intended to capture the southern third of the southernmost main Japanese island, Kyūshū, with the recently captured island of Okinawa to be used as a staging area.  Later, in the spring of 1946, Operation Coronet was the planned invasion of the Kantō Plain, near Tokyo, on the Japanese island of Honshu.  Airbases on Kyūshū captured in Operation Olympic would allow land-based air support for Operation Coronet.  If Downfall had taken place, it would have been the largest amphibious operation in history.

Robert A. Lewis: Robert Alvin Lewis (October 18, 1917 – June 18, 1983) was a United States Army Air Forces officer serving in the Pacific Theatre during World War II.  He was the co-pilot of the "Enola Gay", the B-29 Superfortress bomber which dropped the atomic bomb Little Boy on the Japanese city of Hiroshima on 6 August 1945.

Enola Gay: The Enola Gay ( ) is a Boeing B-29 Superfortress bomber, named for Enola Gay Tibbets, the mother of the pilot, Colonel Paul Tibbets, who selected the aircraft while it was still on the assembly line.  On 6 August 1945, during the final stages of World War II, it became the first aircraft to drop an atomic bomb.  The bomb, code-named "Little Boy", was targeted at the city of Hiroshima, Japan, and caused unprecedented destruction.  "Enola Gay" participated in the second atomic attack as the weather reconnaissance aircraft for the primary target of Kokura.  Clouds and drifting smoke resulted in a secondary target, Nagasaki, being bombed instead.

Paul Tibbets: Paul Warfield Tibbets Jr. (23 February 1915 – 1 November 2007) was a brigadier general in the United States Air Force.  He is best known as the pilot who flew the "Enola Gay" (named after his mother) when it dropped Little Boy, the first of two atomic bombs used in warfare, on the Japanese city of Hiroshima.

George Benedict Zabelka: George B. Zabelka, a Catholic chaplain with the U.S. Army Air Force, was stationed on Tinian Island in the South Pacific in 1945, where he was assigned to 509th Composite Group.  This is the unit of the crews of "Enola Gay" and "Bockscar" (aka Bock’s Car and Bocks Car), that dropped the Atomic Bombs (”Little Boy” and “Fat Man”) on Hiroshima and Nagasaki.  His duties included saying Mass on Sunday and during the week, hearing confessions, talking with the soldiers, and other typical duties of a wartime chaplain.

Supporting paragraphs: Enola Gay Nagasaki
Answer: Kyushu