Teacher:In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Teacher: Now, understand the problem? Solve this instance: Context: The Battle of Haeju was a small naval battle during the main phase of Korean War . Off Haeju Bay in the Yellow Sea , on September 10 , 1950 , days before the Battle of Inchon , a South Korean navy patrol boat , PC - 703 , encountered a North Korean navy minelayer sailing vessel . After a brief fight , the North Korean minelayer was sunk with a loss of all crew and no South Korean casualties were reported . After the minelayer 's sinking , PC - 703 discovered that the sunken vessel had laid a mine field at the mouth of the Haeju Man and then reported to base the location of the sea mines . Two days later on September 12 , PC - 703 encountered three small transports and sank them . The three supply vessels were most likely unarmed ., North Korea, officially the Democratic People's Republic of Korea (DPRK ), is a country in East Asia, in the northern part of the Korean Peninsula. Pyongyang is both the nation's capital as well as its largest city. To the north and northwest the country is bordered by China and by Russia along the Amnok (known as the Yalu in China) and Tumen rivers. The country is bordered to the south by South Korea, with the heavily fortified Korean Demilitarized Zone (DMZ) separating the two., The United Nations (UN) is an intergovernmental organization to promote international co-operation. A replacement for the ineffective League of Nations, the organization was established on 24 October 1945 after World War II in order to prevent another such conflict. At its founding, the UN had 51 member states; there are now 193. The headquarters of the United Nations is in Manhattan, New York City, and experiences extraterritoriality. Further main offices are situated in Geneva, Nairobi, and Vienna. The organization is financed by assessed and voluntary contributions from its member states. Its objectives include maintaining international peace and security, promoting human rights, fostering social and economic development, protecting the environment, and providing humanitarian aid in cases of famine, natural disaster, and armed conflict., South Korea, officially the Republic of Korea (ROK), is a sovereign state in East Asia, constituting the southern part of the Korean Peninsula., The Korean War (in South Korean , "Korean War"; in North Korean , "Fatherland Liberation War"; 25 June 1950  27 July 1953) began when North Korea invaded South Korea. The United Nations, with the United States as the principal force, came to the aid of South Korea. China came to the aid of North Korea, and the Soviet Union gave some assistance., Subject: battle of haeju, Relation: instance_of, Options: (A) armed conflict (B) city (C) conflict (D) country (E) environment (F) june (G) korea (H) league (I) nation (J) october (K) operation (L) order (M) organization (N) part (O) peninsula (P) people (Q) principal (R) republic (S) rights (T) sovereign state (U) soviet (V) two (W) union (X) war (Y) world war
Student:
conflict