input: Please answer the following: Information: - 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 140million 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. - An academician is a full member of an artistic, literary, or scientific academy. In many countries, it is an honorific title used to denote a full member of an academy that has a strong influence on national scientific life. In systems such as the Academy of Sciences of the USSR, the title grants privileges and administrative responsibilities for funding allocation and research priorities. - Academician Andrey Petrovych Ershov ( Russian : ; 19 April 1931 , Moscow -- 8 December 1988 , Moscow ) was a Soviet computer scientist , notable as a pioneer in systems programming and programming language research . Donald Knuth considers him to be the inventor of the idea of hashing . He also created one of the first algorithms for compiling arithmetic expressions . He was responsible for the languages ALPHA and Rapira , AIST - 0 the first Soviet time - sharing system , electronic publishing system RUBIN , and MRAMOR , a multiprocessing workstation . He also was the initiator of developing the Computer Bank of the Russian Language ( ) , the Soviet project for creating a large representative Russian corpus , a project in the 1980s comparable to the Bank of English and British National Corpus . The Russian National Corpus created by the Russian Academy of Sciences in the 2000s is a successor of Ershov 's project . From 1959 he worked at the Siberian Division of the USSR Academy of Sciences , and helped found both the Novosibirsk Computer Center and the Siberian School of Computer Science . He received the Academician A. N. Krylov Prize from the Academy of Sciences , the first programmer to be so recognized . In 1974 he was made a Distinguished Fellow of the British Computer Society , and in 1981 he received the Silver Core Award of the IFIP . To computer science community he is mostly known for his speech '' Aesthetics and the Human Factor in Programming '' presented at the dinner at the AFIPS Spring Joint Computer Conference in 1972 and , due to its importance , republished as an article by the Communications of the ACM . - Moscow (or ) is the capital and most populous city of Russia, with 12.2 million residents within the city limits and 16.8 million within the urban area. Moscow has the status of a Russian federal city. Given the paragraphs above, decide what entity has the relation 'member of' with 'academy of sciences of the ussr'.
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output: andrey ershov

input question: Information: - 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. - 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 Santeria religion of the Caribbean. Many Yoruba words are used in the Afro-Brazilian religion known as Candomble. Yoruba is most closely related to the Itsekiri language (spoken in the Niger Delta) and to Igala (spoken in central Nigeria). - Oluewu was the Alaafin of Oyo from 1833 - 1835 . During his reign , the Fulani empire had already captured Ilorin after an internal coup and transformed it into a Fulani emirate . Oluewu was then bound to Shita , the Emir of Ilorin . However , he refused to embrace the Islamic religion and sought help from Borgu to defeat the Fulanis . Initially , he recorded some success in battle , but a final putsch to recover the northern part of Yorubaland from the Fulanis led to his death and that of many of Oyo 's leading nobles . - 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". - 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. - 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 142,114km or about the same size as the combined land areas of Greece and Montenegro, of which 106,016km, 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. Given the paragraphs above, decide what entity has the relation 'country of citizenship' with 'nigeria'.???
output answer:
oluewu