Question: Who is the current chief justice of the country called the 'Giant of Africa'?

full_context: Document 1: Nigeria: Nigeria is often referred to as the ``Giant of Africa '', owing to its large population and economy. With 186 million inhabitants, Nigeria is the most populous country in Africa and the seventh most populous country in the world. Nigeria has the third - largest youth population in the world, after India and China, with more than 90 million of its population under age 18. The country is viewed as a multinational state as it is inhabited by over 500 ethnic groups, of which the three largest are the Hausa, Igbo and Yoruba; these ethnic groups speak over 500 different languages and are identified with a wide variety of cultures. The official language is English. Nigeria is divided roughly in half between Christians, who live mostly in the southern part of the country, and Muslims, who live mostly in the north. A minority of the population practise religions indigenous to Nigeria, such as those native to the Igbo and Yoruba ethnicities.
Document 2: Hugh Norman Gregory Fernando: Hugh Norman Gregory Fernando (17 November 1910 – 24 March 1976) was the 33rd Chief Justice of Ceylon. He was appointed in 1966 succeeding Miliani Sansoni and was Chief Justice until 1973. He was succeeded by Gardiye Punchihewage Amaraseela Silva.
Document 3: Chief Justice of India: The present CJI is Justice Dipak Misra and is the 45th CJI since January 1950, the year the Constitution came into effect and the supreme court came into being. He succeeded Justice Jagdish Singh Khehar on 28 August 2017 and will remain in office till 2 October 2018, the day he retires on turning 65 years in age.
Document 4: Chief Justice of the United States: Chief Justice of the United States Seal of the U.S. Supreme Court Incumbent John Roberts since September 29, 2005 United States Supreme Court Federal judiciary of the United States Style Mr. Chief Justice (informal) Your Honor (when addressed in court) The Honorable (formal) Status Chief Justice Head of a court system Highest judicial officer Member of Supreme Court Judicial Conference Administrative Office of the Courts Seat Supreme Court Building, Washington, D.C. Appointer The President with Senate advice and consent Term length Life tenure Constituting instrument United States Constitution Formation March 4, 1789 (229 years ago) (1789 - 03 - 04) First holder John Jay as Chief Justice of the Supreme Court (September 26, 1789) Website www.supremecourt.gov
Document 5: Chief Justice of Pakistan: The first Chief Justice was Sir Abdul Rashid. The current Chief Justice is Mian Saqib Nisar; incumbent since 31 December 2016.
Document 6: Nigeria: Nigeria is a religiously diverse society, with Islam and Christianity being the most widely professed religions. Nigerians are nearly equally divided into Christians and Muslims, with a tiny minority of adherents of Animism and other religions. According to one recent estimate, over 40% of Nigeria's population adheres to Islam (mainly Sunni, other branches are also present). Christianity is practised by 58% of the population (among them 74% are Protestant, 25% Roman Catholic, 1% other Christian). Adherents of Animism and other religions collectively represent 1.4% of the population.
Document 7: Aloma Mariam Mukhtar: Aloma Mariam Mukhtar (born 20 November 1944) is a Nigerian jurist and former Chief Justice of Nigeria from July 2012 to November 2014. She was called to the English Bar in November, 1966 and to the Nigerian Bar in 1967.
Document 8: Chief Justice of Pakistan: The first Chief Justice was Sir Abdul Rashid. As of May 2018, the Chief Justice was Mian Saqib Nisar; incumbent since 31 December 2016.
Document 9: Member states of the Organisation of Islamic Cooperation: Nigeria -- Federal Republic of Nigeria Capital: Abuja A 1986 A 7008178517000000000 ♠ 178,517,000 A 7005923768000000000 ♠ 923,768 A English (hide) Further details Nigeria is a federation of 36 states and 1 federal territory.
Document 10: Nigeria: With the majority of Nigeria's populace in the rural areas, the major languages of communication in the country remain indigenous languages. Some of the largest of these, notably Yoruba and Igbo, have derived standardised languages from a number of different dialects and are widely spoken by those ethnic groups. Nigerian Pidgin English, often known simply as 'Pidgin' or 'Broken' (Broken English), is also a popular lingua franca, though with varying regional influences on dialect and slang. The pidgin English or Nigerian English is widely spoken within the Niger Delta Regions, predominately in Warri, Sapele, Port Harcourt, Agenebode, Ewu, and Benin City.
Document 11: Nigeria: According to a 2001 report from The World Factbook by CIA, about 50% of Nigeria's population is Muslim, 40% are Christians and 10% adhere to local religions. But in some recent report, the Christian population is now sightly larger than the Muslim population. An 18 December 2012 report on religion and public life by the Pew Research Center stated that in 2010, 49.3 percent of Nigeria's population was Christian, 48.8 percent was Muslim, and 1.9 percent were followers of indigenous and other religions, or unaffiliated. Additionally, the 2010s census of Association of Religion Data Archives has reported that 46.5 percent of the total population is Christian, slightly bigger than the Muslim population of 45.5 percent, and that 7.7 percent are members of other religious groups.
Document 12: Yoruba people: The Yoruba people (Yoruba: Ìran Yorùbá, lit. 'Yoruba lineage'; also known as Àwon omo Yorùbá, lit. 'Children of Yoruba', or simply as the Yoruba) are an ethnic group of southwestern and north - central Nigeria, as well as southern and central Benin. Together, these regions are known as Yorubaland. The Yoruba constitute over 40 million people in total. The majority of this population is from Nigeria, and the Yoruba make up 21% of the country's population, according to the CIA World Factbook, making them one of the largest ethnic groups in Africa. The majority of the Yoruba speak the Yoruba language, which is tonal, and is the Niger - Congo language with the largest number of native speakers.
Document 13: Chief Justice of Nigeria: Chief Justice Term Sir Edwin Speed 1914 -- 1918 Sir Ralph Combe 1918 -- 1929 Donald Kingdon 1929 -- 1946 Sir John Verity 1946 -- 1954 Sir Stafford Sutton 1955 -- 1958 Adetokunbo Ademola 1958 -- 1972 Taslim Olawale Elias 1972 -- 1975 Darnley Arthur Alexander 1975 -- 1979 Atanda Fatai Williams 1979 -- 1983 George Sodeinde Sowemimo 1983 -- 1985 Ayo Gabriel Irikefe 1985 -- 1987 Mohammed Bello 1987 -- 1995 Muhammad Lawal Uwais 1995 -- 2006 Salihu Moddibo Alfa Belgore 2006 -- 2007 Idris Legbo Kutigi 2007 -- 2009 Aloysius Iyorgyer Katsina - Alu 2009 -- 2011 Dahiru Musdapher 2011 -- 2012 Aloma Mariam Mukhtar 2012 -- 2014 Mahmud Mohammed 2014 -- 2016 Walter Samuel Nkanu Onnoghen 2017 --
Document 14: Nigeria: Among Christians, the Pew Research survey found that 74% were Protestant, 25% were Catholic, and 1% belonged to other Christian denominations, including a small Orthodox Christian community. In terms of Nigeria's major ethnic groups, the Hausa ethnic group (predominant in the north) was found to be 95% Muslim and 5% Christian, the Yoruba tribe (predominant in the west) was 55% Muslim, 35% Christian and 10% adherents of other religions, while the Igbos (predominant in the east) and the Ijaw (south) were 98% Christian, with 2% practising traditional religions. The middle belt of Nigeria contains the largest number of minority ethnic groups in Nigeria, who were found to be mostly Christians and members of traditional religions, with a small proportion of Muslims.
Document 15: Nigeria: Nigeria is often referred to as the "Giant of Africa", owing to its large population and economy. With approximately 182 million inhabitants, Nigeria is the most populous country in Africa and the seventh most populous country in the world. Nigeria has one of the largest populations of youth in the world. The country is viewed as a multinational state, as it is inhabited by over 500 ethnic groups, of which the three largest are the Hausa, Igbo and Yoruba; these ethnic groups speak over 500 different languages, and are identified with wide variety of cultures. The official language is English. Nigeria is divided roughly in half between Christians, who live mostly in the southern part of the country, and Muslims in the northern part. A minority of the population practise religions indigenous to Nigeria, such as those native to Igbo and Yoruba peoples.
ground_truth: Walter Samuel Nkanu Onnoghen
sub_queries: Which country is called the 'Giant of Africa'? Answer: Nigeria
who is the chief justice of Nigeria today Answer: Walter Samuel Nkanu Onnoghen