Answer the following question: Information: - East Asia is the eastern subregion of the Asian continent, which can be defined in either geographical or ethno-cultural terms. Geographically and geopolitically, it includes China, Hong Kong, and Macao; Mongolia and Taiwan; North and South Korea; and Japan; it covers about , or about 28% of the Asian continent, about twice the area of Europe. - The Korean Peninsula is a peninsula in East Asia. It extends southwards for about from continental Asia into the Pacific Ocean and is surrounded by the Sea of Japan (East Sea) to the east, and the Yellow Sea (West Sea) to the west, the Korea Strait connecting the first two bodies of water. - Cheongju International Airport (Hangul: ; Hanja: ; Revised Romanization: Cheongju Gukje Gonghang; McCune-Reischauer: Ch'ngju Kukche Konghang) is an international airport in Cheongwon-gu, South Korea. It also serves the cities of Daejeon and Sejong. In 2011, 1,337,791 passengers used the airport. It also houses the 17th fighter wing of the ROKAF. There is a railway station next to the airport, called Cheongju Airport station, which is on the Chungbuk Line. - The Chungbuk Line(, ) is a railway line serving North Chungcheong Province in South Korea. The line connects Jochiwon on the Gyeongbu Line to Bongyang on the Jungang Line, serving the major cities of Cheongju and Chungju "en route." Cheongju International Airport is located near the rail line. - A sovereign state is, in international law, a nonphysical juridical entity that is represented by one centralised government that has sovereignty over a geographic area. International law defines sovereign states as having a permanent population, defined territory, one government, and the capacity to enter into relations with other sovereign states. It is also normally understood that a sovereign state is neither dependent on nor subjected to any other power or state. - The Jungang Line (literally "Central Line") is a railway line connecting Cheongnyangni in Seoul to Gyeongju in South Korea, traversing central South Korea from the northwest to the southeast. It also referred to the rail line of the Seoul Metropolitan Subway from Yongsan Station to Yongmun Station. - The Gyeongbu Line ("Gyeongbuseon") is the most important railway line in South Korea and one of the oldest. Constructed in 1905, connecting Seoul to Suwon, Daejeon, Daegu, and Busan. The Gyeongbu Line is by far the most heavily travelled rail line in South Korea. High-speed, express, local, and freight trains provide frequent service along its entire length. - Osong Station is a train - station on the Gyeongbu KTX Line in Cheongju City , North Chungcheong Province , South Korea . It is located at the intersection of the Gyeongbu KTX high - speed rail line and the conventional Chungbuk Line . KTX trains began to call there November 1 , 2010 , bringing high - speed rail service to the nearby city of Cheongju . Not all KTX trains call at Osong ; only a select number of trains per day in each direction stop there . - South Korea, officially the Republic of Korea (ROK), is a sovereign state in East Asia, constituting the southern part of the Korean Peninsula. - Cheongju is the capital and largest city of North Chungcheong Province in South Korea. - Chungju is a city in North Chungcheong province, South Korea. Namsan is a mountain located on the outskirts of the city. - North Chungcheong Province, or Chungcheongbuk-do, is a province in the centre of South Korea. It was formed in 1896 from the northeastern half of the former Chungcheong province. The provincial capital is Cheongju. What is the relationship between 'osong station' and 'railway station'?
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