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).

Q: Context: Yoruba ("") is a language spoken in West Africa, mainly in Nigeria.
The number of speakers of Yoruba is approaching 30 million. It is a pluricentric language spoken principally in Benin and Nigeria, with communities in other parts of Africa, the Americas, and Europe. A variety of the language, Lucumi, is the liturgical language of the Santería religion of the Caribbean. Many Yoruba words are used in the Afro-Brazilian religion known as Candomblé. Yoruba is most closely related to the Itsekiri language (spoken in the Niger Delta) and to Igala (spoken in central Nigeria)., Obalokun was an Alaafin of Oyo , he was first in an era of successive despotic and short - lived kings of Oyo ., Yorubaland is the cultural region of the Yoruba people in West Africa. It spans the modern day countries of Nigeria, Togo and Benin, and covers a total land area of 142,114 km² or about the same size as the combined land areas of Greece and Montenegro, of which 106,016 km², representing about 74.6% within Nigeria, 18.9% in Benin, and the remaining 6.5% in Togo. The geocultural space contains an estimated 55 million people, the overwhelming majority of them are ethnic Yorubas.
About 5.3 million people are estimated to practice Yoruba religion worldwide with the largest numbers found in Nigeria., Alaafin, or "Man of the Palace" in the Yoruba language, was the title of the emperor of the medieval Oyo empire of northwestern Yorubaland. It was retained through the fall of that state as the official title of the ceremonial ruler of the contemporary Oyo clan., The Oyo Empire was a Yoruba empire of what is today Western and North central Nigeria, and Eastern Benin. Established in the 15th century, the Oyo Empire grew to become one of the largest West African states. It rose through the outstanding organizational skills of the Yoruba, wealth gained from trade and its powerful cavalry. The Oyo Empire was the most politically important state in the region from the mid-17th to the late 18th century, holding sway not only over most of the other kingdoms in Yorubaland, but also over nearby African states, notably the Fon Kingdom of Dahomey in the modern Republic of Benin to the west., An emperor (through Old French "empereor" from ) is a monarch, usually the sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife ("empress consort"), mother ("empress dowager"), or a woman who rules in her own right ("empress regnant"). Emperors are generally recognized to be of a higher honour and rank than kings. In Europe the title of Emperor was, since the Middle Ages, considered equal or almost equal in dignity to that of Pope, due to the latter's position as visible head of the Church and spiritual leader of Western Europe. The Emperor of Japan is the only currently reigning monarch whose title is translated into English as "Emperor"., Subject: obalokun, Relation: country_of_citizenship, Options: (A) japan (B) montenegro (C) niger (D) nigeria (E) realm

A: nigeria
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Q: Context: The Kabardino-Balkar Republic ("Kabardino-Balkarskaya Respublika"; Kabardian: - , "Qbrdei-Baqr Respublic"; Karachay-Balkar: - , "Qabart-Malqar Respublika"), or Kabardino-Balkaria ("Kabardino-Balkariya"), is a federal subject of Russia (a republic) located in the North Caucasus. As of the 2010 Census, its population was 859,939 on 12,500 square km. Its capital is Nalchik., Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara., Khadzhimurat Magomedovich Akkaev ( Russian :    ) ( born March 27 , 1985 in Tyrnyauz , Kabardino - Balkaria ) is a Russian weightlifter of Balkar descent . He competed in the men 's 94 kg at the 2004 Summer Olympics where he won a silver medal . He is 178 cm / 5 ft 10 tall and weighs 105 kg / 231 lb. At the 2008 Summer Olympics he won the bronze medal in the 94 kg category , with a total of 402 kg. Akkaev has moved up into  105 kg weight category as a replacement for Dmitry Lapikov and Dmitry Klokov . He won the 2011 European Weightlifting Championships in Kazan , with a total of 425 kg He became the 2011 World Champion in Paris , beating his compatriot Dmitry Klokov by 2 kg with a total of 430 kg. Akkaev was scheduled to compete at the 2012 Summer Olympics in the 105 kg class but was forced to withdraw due to a back injury ., Nalchik (Kabardian: //) is the capital city of the Kabardino-Balkar Republic, Russia, situated at an altitude of in the foothills of the Caucasus Mountains; about northwest of Beslan in the Republic of North OssetiaAlania. It covers an area of . Population was , The Balkars are a Turkic people of the Caucasus region, one of the titular populations of Kabardino-Balkaria. Their Karachay-Balkar language is of the Ponto-Caspian subgroup of the Northwestern (Kipchak) group of Turkic languages., Tyrnyauz is a town and the administrative center of Elbrussky District of the Kabardino-Balkar Republic, Russia, located on the main road leading to the Upper Baksan valley area and on the main climbing route for Mount Elbrus. Population: Tyrnyauz is the largest town in the Baksan Valley and an essential provisioning point for trips into the Elbrus region., The North Caucasus (or Ciscaucasia) is the northern part of the Caucasus region between the Black Sea and the Caspian Sea and within European Russia. , The Caucasus or Caucasia is a region at the border of Europe and Asia, situated between the Black and the Caspian seas., Mount Elbrus ( "Whamxwa"  tr. "Ialbuzi"; Ossetian: "Halbruz") is the highest mountain in Russia and in Europe, and the tenth most prominent peak in the world. A dormant volcano, Elbrus forms part of the Caucasus Mountains in Southern Russia, near the border with Georgia. , Elbrussky District (Kabardian: ) is an administrative and a municipal district (raion), one of the ten in the Kabardino-Balkar Republic, Russia. It is located in the western and southwestern parts of the republic. The area of the district is . Its administrative center is the town of Tyrnyauz. As of the 2010 Census, the total population of the district was 36,260, with the population of Tyrnyauz accounting for 57.9% of that number., Subject: khadzhimurat akkayev, Relation: place_of_birth, Options: (A) caucasia (B) caucasus (C) center (D) georgia (E) march (F) nalchik (G) north caucasus (H) novosibirsk (I) of (J) petersburg (K) republic (L) russia (M) samara (N) tyrnyauz (O) volcano

A: nalchik
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Q: Context: Europe is a continent that comprises the westernmost part of Eurasia. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. To the east and southeast, Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways of the Turkish Straits. Yet the non-oceanic borders of Europea concept dating back to classical antiquityare arbitrary. The primarily physiographic term "continent" as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent's current overland boundaries., Lake Kastraki ( Greek :   ) is an artificial lake near Kastraki in Aetolia - Acarnania , western Greece . The lake is drained by the river Acheloos , and fed by the rivers Acheloos and Inachos . It was formed by the Kastraki Dam , completed in 1969 . Its area is about 28 km² and its maximum capacity is 950,000,000 m³ of water . It is used for the generation of hydroelectric power by DEI ., Aetolia-Acarnania is one of the regional units of Greece. It is part of the geographic region of Central Greece and the administrative region of West Greece. A combination of the historical regions of Aetolia and Acarnania, it is the country's largest regional unit. Its capital is Missolonghi for historical reasons, with its biggest city and economic centre at Agrinio. The area is now connected with the Peloponnese peninsula via the Rio-Antirio Bridge. The surrounding regional units take in Arta in Epirus, a narrow length bordering Karditsa of Thessaly, Evrytania to the northeast, and Phocis to the east., Acarnania is a region of west-central Greece that lies along the Ionian Sea, west of Aetolia, with the Achelous River for a boundary, and north of the gulf of Calydon, which is the entrance to the Gulf of Corinth. Today it forms the western part of the regional unit of Aetolia-Acarnania. The capital and principal city in ancient times was Stratos. The north side of Acarnania of the Corinthian Gulf was considered part of the region of Epirus., Greece (' ), officially the Hellenic Republic (Greek: ' ), historically also known as Hellas ("" ), is a country in southeastern Europe. 
Greece's population is approximately 10.955 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki., Subject: kastraki , Relation: lake_inflows, Options: (A) achelous river (B) ural river

A:
achelous river
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