Context: A metropolis is a large city or conurbation which is a significant economic, political, and cultural center for a country or region, and an important hub for regional or international connections, commerce, and communications. The term is Greek and means the "mother city" of a colony (in the ancient sense), that is, the city which sent out settlers. This was later generalized to a city regarded as a center of a specified activity, or any large, important city in a nation., 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., Gyeongju, historically known as "Seorabeol", is a coastal city in the far southeastern corner of North Gyeongsang Province in South Korea. It is the second largest city by area in the province after Andong, covering with a population of 264,091 people (as of December 2012.) Gyeongju is southeast of Seoul, and east of Daegu. The city borders Cheongdo and Yeongcheon to the west, Ulsan to the south and Pohang to the north, while to the east lies the coast of the East Sea. Numerous low mountainsoutliers of the Taebaek rangeare scattered around the city., Yongsan Station is a major railway station in Seoul, South Korea. It is located in Yongsan District, and adjoins the Yongsan Electronics Market. The station is the terminus for high-speed and long-distance trains on a number of railway lines, including most trains on the Honam Line, its high-speed counterpart, and all trains on the Janghang and Jeolla Lines., South Korea, officially the Republic of Korea (ROK), is a sovereign state in East Asia, constituting the southern part of the Korean Peninsula., The Seoul Metropolitan Subway is an integrated urban rail transit system consisting of 20 rapid transit, light metro, commuter rail and people mover lines located in South Korea. The system serves most of the Seoul Metropolitan Area including the Incheon metropolis and satellite cities in Gyeonggi province. Some lines in the network cross large rural areas to reach major cities in northern Chungnam province and western Gangwon province that lie over 100 km away from the capital., 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., Incheon (formerly romanized as Inchon; literally "kind river"), officially the Incheon Metropolitan City(), is a city located in northwestern South Korea, bordering Seoul and Gyeonggi to the east. Inhabited since the New Stone Age, Incheon was home to just 4,700 people when it became an international port in 1883. Today, about 3 million people live in the city, making it Koreas third most populous city after Seoul and Busan. The city's growth has been assured in modern times with the development of its port due to its natural advantages as a coastal city and its proximity to the South Korean capital. It is part of the Seoul Capital Area, along with Seoul itself and Gyeonggi Province, forming the world's second largest metropolitan area by population., Seoul ()  officially the Seoul Special City  is the capital and largest metropolis of the Republic of Korea (commonly known as South Korea), forming the heart of the Seoul Capital Area, which includes the surrounding Incheon metropolis and Gyeonggi province, the world's 16th largest city. It is home to over half of all South Koreans along with 678,102 international residents., Yangwon Station is a station on the Jungang Line . Geographically , it is the easternmost train / metro station in Seoul north of the Han River ., Subject: yangwon station, Relation: instance_of, Options: (A) activity (B) age (C) area (D) capital (E) city (F) commuter rail (G) conurbation (H) cultural center (I) korea (J) line (K) market (L) metropolis (M) metropolitan (N) metropolitan area (O) nation (P) part (Q) people (R) population (S) port (T) province (U) railway line (V) railway station (W) rapid transit (X) region (Y) republic (Z) river ([) sea (\) sense (]) sovereign state (^) state (_) station (`) stone (a) system (b) urban rail transit
Output: railway station