Question: In which airport is the head office of the airline which joined with the government of Sierra Leone to form Leone Airways?

Context articles: Tower Hill (Sierra Leone)
Patrick Omolade Hamilton
Oku people (Sierra Leone)
Government of Sierra Leone
Leone Airways
Special Court for Sierra Leone
Mohamed Sillah
Parliament of Sierra Leone
Arik Air
Sierra Leone Anti-corruption Commission

Tower Hill is an affluent government and residential neighborhood in central Freetown, Sierra Leone.
 Tower Hill is located within the central business district in downtown Freetown.
 Tower Hill is the seat of the government of Sierra Leone, as it is home to the State House (the office and residence of the Sierra Leone president).
 Tower Hill is also home to the Sierra Leone House of Parliament, the Sierra Leone Ministry of Defence, the Bank of Sierra Leone , The Sierra Leone National Electoral Commission (NEC) , and many other government buildings.
Patrick Omolade Hamilton is a Sierra Leone judge and an associate justice in the Supreme Court of Sierra Leone.
 He had previously served as a judge in the Sierra Leone High Court and the Sierra Leone Court of Appeal.
 He was appointed as a Supreme Court justice by Sierra Leone's president Ernest Bai Koroma and took office on January 22, 2009 after being confirmed by the Sierra Leone Parliament.
The Oku people, also commonly known as Oku Mohammedans or "Aku Mohammedans"in Sierra Leone and as the "Aku Marabou" or "Oku Marabou" in the Gambia, are an ethnic group in Sierra Leone and the Gambia.
 The Oku people are the descendants of liberated Africans of Yoruba descent from Southwest Nigeria who were liberated or came to Sierra Leone as settlers in the mid 19th century and formed a distinctive ethnic group The Oku are virtually all Muslims and are known for their conservative muslim population.
 The British colonial government provided official recognition to the Oku Mohammedan community as a distinctive community in Sierra Leone.
 Although the Sierra Leone government officially considered the Oku people as members of the Creole ethnic group, many Sierra Leoneans consider the Oku people as a distinctive ethnic group.
The government of Sierra Leone is the governing authority of the Republic of Sierra Leone, as established by the Sierra Leone Constitution.
 The Sierra Leone government is divided into three branches: the executive, legislative and the judicial.
 The seat of government of Sierra Leone is in the capital Freetown.
Leone Airways was a planned national carrier for Sierra Leone.
 It was established as a joint venture between the government of Sierra Leone and Arik Airlines of Nigeria.
The Special Court for Sierra Leone, or the "Special Court" (SCSL), also called the Sierra Leone Tribunal, was a judicial body set up by the government of Sierra Leone and the United Nations to "prosecute persons who bear the greatest responsibility for serious violations of international humanitarian law and Sierra Leonean law" committed in Sierra Leone after 30 November 1996 and during the Sierra Leone Civil War.
 The court's working language was English.
 The court listed offices in Freetown, The Hague, and New York City.
Mohamed Yahya Sillah was born December 12, 1949 in Massam Kpaka, Pujehun District, Republic of Sierra Leone.
 His father, Alhaji Yahya Sillah, now 100 years old, served as Regent Chief (Acting Paramount Chief) for several years in Dama Chiefdom, Kenema District in the early seventies.
 Alhaji Yahya Sillah was appointed to that high position by Sierra Leone President Siaka Stevens.
 His mother, Haja Mamie Zoe Mansaray, was a home maker.
 A journalist and human rights activist, Mohamed Yahya Sillah was a vocal torch-bearer in the transition efforts from military to civilian rule in Sierra Leone, 1996.
 As Leader and National Chairman of National Alliance Democratic Party (NADP), he competed the 1996 Presidential elections in Sierra Leone, becoming one of only thirteen political leaders that qualified to contest the Presidential and Parliamentary elections in the country at the age of 46.
 His adoring personality lured many Sierra Leoneans and media practitioners to view him as one of the most eloquent and charismatic politicians in Sierra Leone.
 Nevertheless, he received only 0.5% of the votes (3,723 total votes), good for 13th place.
 Although he protested the election results on BBC's Focus on Africa, he later suspended his protest "for the sake of peace."
 Mohamed Yahya Sillah continues to enjoy massive support from the youth and women supporters in Sierra Leone.
 In 2007, he withdrew his bid for national leadership in the Presidential and Parliamentary elections, citing inadequate funding and ineffective campaign management machinery.
 He later put his weight behind the Sierra Leone Peoples Party (SLPP) presidential candidate, Vice President Solomon Berewa.
 When Berewa lost the elections, Mohamed Yahya Sillah gracefully congratulated the winning candidate, Ernest Bai Koroma, of the All People's Congress (APC) party.
 Mohamed Yahya Sillah vows to respect and help protect the dignity of any Sierra Leonean that is legitimately and democratically elected to office by the people of Sierra Leone.
Parliament of Sierra Leone is the legislative branch of the government of Sierra Leone.
 It is principally responsible for making laws.
 The Sierra Leone parliament consists of 124 members, of which 112 members are directly elected from across Sierra Leone's 14 Districts.
 The Parliament is led by the Speaker.
 The current speaker of Parliament is Sheku Badara Bashiru Dumbuya (APC).
 The current elected members of parliament are entirely composed of members of the All People's Congress and the Sierra Leone People's Party, the two largest political parties in Sierra Leone.
Arik Air is a Nigerian airline operating mainly from two hubs at Murtala Muhammed International Airport near Lagos and Nnamdi Azikiwe International Airport in Abuja.
 Arik Air's head office is the "Arik Air Aviation Center" on the grounds of Murtala Muhammed International Airport in Ikeja.
 Arik Air serves a network of regional and mid-haul destinations within Africa.
The Sierra Leone Anti-corruption Commission (ACC-SL) commonly known as ACC is an independent agency of the Sierra Leone Sierra Leone Government, that investigates and prosecutes corruption cases in Sierra Leone.
 The ACC is supervised by the Sierra Leone Ministry of Justice.
 The current Head of the ACC is Ady Macauley, who has been in office since March 14, 2016.