Question: In what country is the Roman Catholic Archdiocese of the city that is the capital of the country's Mid-Western Region?

full_context: Document 1: Edo State: Edo is a state in Nigeria. With Benin City as capital, the population of the entire state is approximately 8 million people. It is made up of four major ethnic groups; namely Edo (Binis), Esan, Owan and Etsako. However the State has a high presence of residents from across the country and the world because of its cosmopolitan tendencies. Benin City the capital has a history of being one of the foremost destinations of Europeans during their exploration of the African continent many centuries ago. Some of the flash points have remained enviable tourists' attractions for the state.
Document 2: Mid-Western Region, Nigeria: It was formed in June 1963 from Benin and Delta provinces of the Western Region, and its capital was Benin City. It was renamed a province in 1966, and in 1967 when the other provinces were split up into several states, it remained territorially intact, becoming a state.
Document 3: Roman Catholic Archdiocese of Quito: The Roman Catholic Metropolitan Archdiocese of Quito is the Catholic archdiocese in the capital city of Ecuador, Quito. It was established as the Diocese of Quito on 8 January 1545, before being elevated to archdiocese level in 1849 by Pope Pius IX.
Document 4: Roman Catholic Archdiocese of Benin City: The Roman Catholic Archdiocese of Benin City is the Metropolitan See for the Ecclesiastical province of Benin City in Nigeria.
Document 5: Abuja: The indigenous inhabitants of Abuja are the Gbagyi (Gwari) as the major language, Bassa, Gwandara, Gade, Ganagana, Koro etc. In light of the ethnic and religious divisions of Nigeria, plans had been devised since Nigeria's independence to have its capital in a place deemed neutral to all major ethnic parties, and also in close proximity to all the regions of Nigeria. The location was eventually designated in the centre of the country in the early 1970s as it signified neutrality and national unity. Another impetus for Abuja came because of Lagos' population boom that made that city overcrowded and conditions squalid. As Lagos was already undergoing rapid economic development, the Nigerian regime felt the need to expand the economy towards the inner part of the country, and hence decided to move its capital to Abuja. The logic used was similar to the way Brazil planned its capital, Brasília. The decision to move to Abuja was made by General Murtala Mohammed in 1976. Construction started in the late 1970s but, due to economic and political instability, the initial stages of the city were not complete until the late 1980s.
Document 6: Roman Catholic Archdiocese of Aix: The Roman Catholic Archdiocese of Aix-en-Provence and Arles (Latin: "Archidioecesis Aquensis in Gallia et Arelatensis"; French: "Archidiocèse d'Aix-en-Provence et Arles"; Occitan Provençal: "Archidiocèsi de Ais de Provença e Arle" or "Archidioucèsi de z'Ais e Arle") is an archdiocese of the Latin Rite of the Roman Catholic Church in France. The Archepiscopal see is located in the city of Aix-en-Provence. The diocese comprises the department of Bouches-du-Rhône (minus the arrondissement of Marseilles), in the Region of Provence-Alpes-Côte d'Azur. It is currently a suffragan of the Archdiocese of Marseilles and consequently the archbishop no longer wears the pallium.
Document 7: Catholic Church: The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with more than 1.299 billion members worldwide. As one of the oldest religious institutions in the world, it has played a prominent role in the history and development of Western civilisation. The church is headed by the Bishop of Rome, who is known as the Pope. The church's doctrines are summarised in the Nicene Creed. Its central administration, the Holy See, is in the Vatican City, an enclave within Rome, Italy.
Document 8: Nigeria: Nigeria is divided into thirty-six states and one Federal Capital Territory, which are further sub-divided into 774 Local Government Areas (LGAs). The plethora of states, of which there were only three at independence, reflect the country's tumultuous history and the difficulties of managing such a heterogeneous national entity at all levels of government. In some contexts, the states are aggregated into six geopolitical zones: North West, North East, North Central, South East, South South, and South West.
Document 9: States of Nigeria: Date Events Map 1960 - 1963 At the time of independence in 1960, Nigeria was a Federal State of three Regions: Northern, Western, and Eastern. Additionally, provinces, which were a legacy of colonial times, remained extant until they were abolished in 1976. 1963 - 1967 In 1963, two provinces were detached from the Western Region to form the new Mid-Western Region. 1967 - 1976 In 1967, the regions were replaced by 12 states due to a military decree; only the former Mid-Western Region escaped division, and formed a single state following the restructuring. From 1967 to 1970 the areas of Mid-Western State and the Eastern Region attempted to secede, as a nation called Biafra during the Nigerian civil war. 1976 - 1987 In 1976, seven new states were created, making 19 altogether. 1987 - 1991 During this period, there were 21 states and later, Abuja, the Federal Capital Territory. 1991 - 1996 During this period, there were 30 states and the Federal Capital Territory. The Federal Capital Territory was established in 1991. In 1987 two new states were established, followed by another nine in 1991, bringing the total to 30. The latest change, in 1996, resulted in the present number of 36 states.
Document 10: Roman Catholic Archdiocese of São Salvador da Bahia: The Archdiocese of São Salvador da Bahia () is part of the Roman Catholic Church in Brazil. The Archbishop of São Salvador da Bahia also carries the title Primate of Brazil. The archiocese is located in the city of Salvador, Bahia.
Document 11: Partition of Bengal (1905): Due to these political protests, the two parts of Bengal were reunited on 12 December 1911. A new partition which divided the province on linguistic, rather than religious grounds followed, with the Hindi, Oriya and Assamese areas separated to form separate administrative units: Bihar and Orissa Province was created to the west, and Assam Province to the east. The administrative capital of British India was moved from Calcutta to New Delhi as well.
Document 12: History of Nigeria: In 1914, the area was formally united as the Colony and Protectorate of Nigeria. Administratively, Nigeria remained divided into the Northern and Southern Provinces and Lagos Colony. Western education and the development of a modern economy proceeded more rapidly in the south than in the north, with consequences felt in Nigeria's political life ever since. Following World War II, in response to the growth of Nigerian nationalism and demands for independence, successive constitutions legislated by the British Government moved Nigeria toward self - government on a representative and increasingly federal basis. On 1 October 1954, the colony became the autonomous Federation of Nigeria. By the middle of the 20th century, the great wave for independence was sweeping across Africa. On 27 October 1958 Britain agreed that Nigeria would become an independent state on 1 October 1960.
Document 13: Roman Catholic Archdiocese of Kuala Lumpur: The Roman Catholic Metropolitan Archdiocese of Kuala Lumpur () is an ecclesiastical territory or diocese of the Roman Catholic Church in Malaysia. It was erected as the Diocese of Kuala Lumpur by Pope Pius XII on 25 February 1955, and was elevated to the rank of a Metropolitan Archdiocese on 18 December 1972, with the suffragan sees of Malacca-Johor and Penang. It also administers the capital of Malaysia, Kuala Lumpur and the states of Selangor, Negeri Sembilan, Pahang, Terengganu. The archdiocese's Mother Church and thus, seat of its Archbishop, is St. John's Cathedral.
Document 14: Nigeria: Modern-day Nigeria has been the site of numerous kingdoms and tribal states over the millennia. The modern state originated from British colonial rule beginning in the 19th century, and the merging of the Southern Nigeria Protectorate and Northern Nigeria Protectorate in 1914. The British set up administrative and legal structures whilst practising indirect rule through traditional chiefdoms. Nigeria became a formally independent federation in 1960, and plunged into a civil war from 1967 to 1970. It has since alternated between democratically-elected civilian governments and military dictatorships, until it achieved a stable democracy in 1999, with its 2011 presidential elections being viewed as the first to be conducted reasonably freely and fairly.
Document 15: Kingdom of Benin: Centuries later, in 1440, Oba Ewuare, also known as Ewuare the Great, came to power and expanded the borders of the former city - state. It was only at this time that the administrative centre of the kingdom began to be referred to as Ubinu after the Yoruba word and corrupted to Bini by the Itsekhiri, Edo, and Urhobo living together in the royal administrative centre of the kingdom. The Portuguese who arrived in an expedition led by Joao Afonso de Aveiro in 1485 would refer to it as Benin and the centre would become known as Benin City.
ground_truth: Nigeria
sub_queries: Mid-Western Region >> capital Answer: Benin City
Roman Catholic Archdiocese of Benin City >> country Answer: Nigeria