Given the task definition and input, reply with output. 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).

Context: Afghanistan (Pashto/Dari: , "Afnistn"), officially the Islamic Republic of Afghanistan, is a landlocked country located within South Asia and Central Asia. It has a population of approximately 32 million, making it the 42nd most populous country in the world. It is bordered by Pakistan in the south and east; Iran in the west; Turkmenistan, Uzbekistan, and Tajikistan in the north; and China in the far northeast. Its territory covers , making it the 41st largest country in the world., Amir Chupan , also known as Choban or Coban (    ) , ( d. November 1327 ) , was a Chupanid noble of the Ilkhanate , and nominal general of the Mongol Empire . His father was named the Malek of the Mongol Suldus clan . His ancestor was Chilaun (  ) , who was one of Chingis Khan 's four great companions ., Iran (, also , ; ' ), also known as Persia, officially the Islamic Republic of Iran (' ), is a sovereign state in Western Asia. It is bordered to the northwest by Armenia, the "de facto" Nagorno-Karabakh Republic, and Azerbaijan; to the north by the Caspian Sea; to the northeast by Turkmenistan; to the east by Afghanistan and Pakistan; to the south by the Persian Gulf and the Gulf of Oman; and to the west by Turkey and Iraq. Comprising a land area of , it is the second-largest country in the Middle East and the 18th-largest in the world. With 82.8 million inhabitants, Iran is the world's 17th-most-populous country. It is the only country with both a Caspian Sea and an Indian Ocean coastline. The country's central location in Eurasia and Western Asia, and its proximity to the Strait of Hormuz, make it of great geostrategic importance. Tehran is the country's capital and largest city, as well as its leading economic center., Turkmenistan (or  ); formerly known as Turkmenia is a country in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north and east, Afghanistan to the southeast, Iran to the south and southwest, and the Caspian Sea to the west., The Persian Plateau, or Iranian Plateau, is a geological formation in Western Asia and Central Asia. It is the part of the Eurasian Plate wedged between the Arabian and Indian plates, situated between the Zagros Mountains to the west, the Caspian Sea and the Kopet Dag to the north, the Armenian Highlands and the Caucasus mountains in the northwest, the Hormuz Strait and Persian gulf to the south and the Indus River to the east in Pakistan., Central Asia or Middle Asia is the core region of the Asian continent and stretches from the Caspian Sea in the west to China in the east and from Afghanistan in the south to Russia in the north. It is also colloquially referred to as "the 'stans" (as the six countries generally considered to be within the region all have names ending with the Persian suffix "-stan", meaning "land of") and is within the scope of the wider Eurasian continent., The Sea of Japan (see below for other names) is a marginal sea between the Japanese archipelago, Sakhalin, and the Asian mainland. The Japanese archipelago separates the sea from the Pacific Ocean. It is bordered by Japan, North Korea, Russia and South Korea. Like the Mediterranean Sea, it has almost no tides due to its nearly complete enclosure from the Pacific Ocean. This isolation also reflects in the fauna species and in the water salinity, which is lower than in the ocean. The sea has no large islands, bays or capes. Its water balance is mostly determined by the inflow and outflow through the straits connecting it to the neighboring seas and Pacific Ocean. Few rivers discharge into the sea and their total contribution to the water exchange is within 1%., Mongolia (Mongolian: ["Monggol Ulus"] in Mongolian script; ["Mongol Uls"] in Mongolian Cyrillic) is a landlocked unitary sovereign state in East Asia. Its area is roughly equivalent with the historical territory of Outer Mongolia, and that term is sometimes used to refer to the current state. It is sandwiched between China to the south and Russia to the north. While it does not share a border with Kazakhstan, Mongolia is separated from it by only ., Chilaun was a general in the Mongol Empire, known as one of Genghis Khan's four valiant warriors. His relatives, specifically his father Sorqan-Shira, helped young Genghis escape from captivity at the hands of the Tayichiuds. His descendants include Chupan. , Iraq (, or ; '; '), officially known as the Republic of Iraq ('; ') is a country in Western Asia, bordered by Turkey to the north, Iran to the east, Kuwait to the southeast, Saudi Arabia to the south, Jordan to the southwest, and Syria to the west. The capital, and largest city, is Baghdad. The main ethnic groups are Arabs and Kurds; others include Assyrians, Turkmen, Shabakis, Yazidis, Armenians, Mandeans, Circassians, and Kawliya. Around 95% of the country's 36 million citizens are Muslims, with Christianity, Yarsan, Yezidism, and Mandeanism also present. The official languages of Iraq are Arabic and Kurdish., Siberia is an extensive geographical region, and by the broadest definition is also known as North Asia. Siberia has historically been a part of Russia since the 17th century., Pakistan (or ), officially the Islamic Republic of Pakistan, is a federal parliamentary republic in South Asia on crossroads of Central Asia and Western Asia. It is the sixth-most populous country with a population exceeding 200 million people. It is the 36th largest country in the world in terms of area with an area covering . Pakistan has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by India to the east, Afghanistan to the west, Iran to the southwest and China in the far northeast respectively. It is separated from Tajikistan by Afghanistan's narrow Wakhan Corridor in the north, and also shares a maritime border with Oman., Genghis Khan (often pronounced ;  c. 1162 August 18, 1227), born Temüjin, was the founder and Great Khan (Emperor) of the Mongol Empire, which became the largest contiguous empire in history after his death., Mahmud Ghazan (1271 11 May 1304) (, sometimes referred to as Casanus by Westerners) was the seventh ruler of the Mongol Empire's Ilkhanate division in modern-day Iran from 1295 to 1304. He was the son of Arghun and Quthluq Khatun, continuing a long line of rulers who were direct descendants of Genghis Khan. Considered the most prominent of the Ilkhans, he is best known for making a political conversion to Islam in 1295 when he took the throne, marking a turning point for the dominant religion of Mongols in West Asia (Iran, Iraq, Anatolia and Trans-Caucassia). His principal wife was Kököchin, a Mongol princess (originally betrothed to Ghazan's father Arghun before his death) sent by his Khagan Kublai Khan, and escorted from the Mongol capital to the Ilkhanate by Marco Polo., The Mongol Empire (Mongolian: "Mongolyn Ezent Güren" ; Mongolian Cyrillic:    also ("Horde") in Russian chronicles) existed during the 13th and 14th centuries and was the largest contiguous land empire in history. Originating in the steppes of Central Asia, the Mongol Empire eventually stretched from Central Europe to the Sea of Japan, extending northwards into Siberia, eastwards and southwards into the Indian subcontinent, Indochina, and the Iranian plateau, and westwards as far as the Levant and Arabia., The Indian subcontinent or the subcontinent, also called Indian continent, is a southern region of Asia, mostly situated on the Indian Plate and projecting southwards into the Indian Ocean from the Himalayas. Geologically, the Indian subcontinent is related to the land mass that rifted from Gondwana and merged with the Eurasian plate nearly 55 million years ago. Geographically, it is the peninsular region in south-central Asia delineated by the Himalayas in the north, the Hindu Kush in the west, and the Arakanese in the east. Politically, the Indian subcontinent usually includes Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan and Sri Lanka., The Levant (Arabic:  "") is an approximate historical geographical term referring to a large area in the Eastern Mediterranean. In its widest historical sense, the Levant included all of the eastern Mediterranean with its islands, that is, it included all of the countries along the Eastern Mediterranean shores, extending from Greece to Cyrenaica. The term "Levant" entered English in the late 15th century from French. It derives from the Italian "Levante", meaning "rising", implying the rising of the sun in the east. As such, it is broadly equivalent to the Arabic term "Mashriq", meaning "the land where the sun rises"., Turkey, officially the Republic of Turkey (Turkish: ), is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a diverse cultural heritage. Turkey is bordered by eight countries: Greece to the west; Bulgaria to the northwest; Georgia to the northeast; Armenia, the Azerbaijani exclave of Nakhchivan and Iran to the east; and Iraq and Syria to the south. The Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, which together form the Turkish Straits, divide Thrace and Anatolia; they also separate Europe and Asia. Turkey's location has given it geopolitical and strategic importance throughout history., Azerbaijan, officially the Republic of Azerbaijan, is a country in the South Caucasus region, situated at the crossroads of Southwest Asia and Southeastern Europe. It is bounded by the Caspian Sea to the east, Russia to the north, Georgia to the northwest, Armenia to the west and Iran to the south. The exclave of Nakhchivan is bounded by Armenia to the north and east, Iran to the south and west, while having an 8 km border with Turkey in the north west., Armenia ( tr. "Hayastan"), officially the Republic of Armenia (tr. "Hayastani Hanrapetutyun"), is a sovereign state in the South Caucasus region of Eurasia. Located in Western Asia on the "Armenian Highlands", it is bordered by Turkey to the west, Russia and Georgia to the north and Azerbaijan to the east, and Iran and Azerbaijan's exclave of Nakhchivan to the south., The Ilkhanate, also spelled Il-khanate ("Ilkhnn" "Hulagu-yn Ulus"), was established as a khanate that formed the southwestern sector of the Mongol Empire, ruled by the Mongol House of Hulagu. It was founded in the 13th century and was based primarily in Iran as well as neighboring territories, such as present-day Azerbaijan and the central and eastern parts of present-day Turkey. The Ilkhanate was originally based on the campaigns of Genghis Khan in the Khwarazmian Empire in 121924 and was founded by Hulagu Khan, a grandson of Genghis Khan. With the fragmentation of the Mongol Empire after 1259 it became a functionally separate khanate. At its greatest extent, the state expanded into territories that today comprise most of Iran, Iraq, Armenia, Azerbaijan, Georgia, Turkmenistan, Turkey, western Afghanistan, and southwestern Pakistan. Later Ilkhanate rulers, beginning with Ghazan in 1295, would convert to Islam., In physical geography, a steppe (Old Russian: "" [step'], grassland) is an ecoregion, in the montane grasslands and shrublands and temperate grasslands, savannas, and shrublands biomes, characterized by grassland plains without trees apart from those near rivers and lakes. In South Africa they are referred to as Veld. The prairie (especially the shortgrass and mixed prairie) is an example of a steppe, though it is not usually called such. It may be semi-desert, or covered with grass or shrubs or both, depending on the season and latitude. The term is also used to denote the climate encountered in regions too dry to support a forest, but not dry enough to be a desert. The soil is typically of chernozem type., Subject: chupan, Relation: country_of_citizenship, Options: (A) afghanistan (B) armenia (C) azerbaijan (D) bangladesh (E) bhutan (F) china (G) greece (H) india (I) iran (J) iraq (K) japan (L) jordan (M) kazakhstan (N) korea (O) kuwait (P) mongol empire (Q) mongolia (R) north korea (S) oman (T) pakistan (U) republic of afghanistan (V) russia (W) saudi arabia (X) south africa (Y) south korea (Z) turkey ([) turkmenistan (\) uzbekistan
mongolia