Answer the following question: Information: - Pyongyang ((), , literally: "Flat Land" or "Peaceful Land") is the capital and largest city of the Democratic Peoples Republic of Korea (commonly known as North Korea). - Taiwan, officially the Republic of China (ROC), is a state in East Asia. Neighbors include China (officially the People's Republic of China, abbreviated as PRC) to the west, Japan to the northeast, and the Philippines to the south. Taiwan is the most populous state that is not a member of the United Nations, and the one with the largest economy. - Park Kyung-won (24 June 1901 7 August 1933) was, along with Kwon Ki-ok of the Republic of China Air Force, one of the earliest Korean female aviators. Though it is generally agreed that Kwon was the first female pilot, Park is still recognised as the first Korean female civilian pilot, as Kwon was trained by the Republic of China Air Force. She was the subject of the controversial 2005 South Korean film "Blue Swallow", in which she was portrayed by actress Jang Jin-young. - Blue Swallow is a 2005 South Korean film based on the true story of Park Kyung - won , an early Korean female pilot . The film became controversial when Park 's alleged pro-Japanese activities came to light . It was also found that she was not , as the filmmakers had thought , the first female pilot from Korea ; this distinction in fact belonged to Kwon Ki - ok of the Republic of China Air Force . Despite excellent reviews and Park 's biographer pointing out factual errors in these accusations , it resulted in the under - performance of Blue Swallow at the box office . - The Republic of China Air Force (ROCAF) is the aviation branch of the Taiwanese military. The ROCAF's primary mission is the defense of the airspace over and around Taiwan. Priorities of the ROCAF include the development of long range reconnaissance and surveillance networks, integrating C4ISTAR systems to increase battle effectiveness, procuring counterstrike weapons, next generation fighters, and hardening airfields and other facilities to survive a surprise attack. - Jang Jin-young (June 14, 1974 September 1, 2009) was a South Korean actress. Her death came after a year-long battle with stomach cancer. - Korea is a historical state in East Asia, since 1945 divided into two distinct sovereign states: North Korea (officially the "Democratic People's Republic of Korea") and South Korea (officially the "Republic of Korea"). Located on the Korean Peninsula, Korea is bordered by China to the northwest and Russia to the northeast. It is separated from Japan to the east by the Korea Strait and the East Sea. - Aviation is the practical aspect or art of aeronautics, being the design, development, production, operation and use of aircraft, especially heavier than air aircraft. The word "aviation" was coined by French writer and former naval officer Gabriel La Landelle in 1863, from the verb "avier" (synonymous flying), itself derived from the Latin word "avis" ("bird") and the suffix "-ation". - Kwon Ki-ok (born Pyongyang, Korea, 11 January 1901 19 April 1988) was the first Korean female aviator, as well as being the first female pilot in China. Given the information above, choose from the list below the object entity that exhibits the relation 'main subject' with the subject 'blue swallow '. Choices: - 1901 - art - aviation - aviator - cancer - city - death - design - film - russia - united nations
Answer:
aviation