Question: Who was the first leader of the independent country where FC Mwangaza is located?

full_context: Document 1: Republic of the Congo: The region was dominated by Bantu-speaking tribes, who built trade links leading into the Congo River basin. Congo-Brazzaville was formerly part of the French colony of Equatorial Africa. Upon independence in 1960, the former colony of French Congo became the Republic of the Congo. The People's Republic of the Congo was a Marxist–Leninist one-party state from 1970 to 1991. Multi-party elections have been held since 1992, although a democratically elected government was ousted in the 1997 Republic of the Congo Civil War and President Denis Sassou Nguesso has ruled for 26 of the past 36 years.
Document 2: Republic of the Congo: The Republic of the Congo received full independence from France on August 15, 1960. Fulbert Youlou ruled as the country's first president until labour elements and rival political parties instigated a three-day uprising that ousted him. The Congolese military took charge of the country briefly and installed a civilian provisional government headed by Alphonse Massamba-Débat.
Document 3: SC Cilu: Sporting Club Cilu is a football club in Lukala, Democratic Republic of Congo.  They play in the Linafoot, the top level of professional football in DR Congo.  They competed in the 2004 CAF Champions League, going out in the first round, and won the Unifac Clubs Cup in 2006
Document 4: History of the Democratic Republic of the Congo: After an uprising by the Congolese people, Belgium surrendered to the independence of the Congo in 1960. However, the Congo remained unstable because tribal leaders had more power than the central government. Prime Minister Patrice Lumumba tried to restore order with the aid of the Soviet Union as part of the Cold War, causing the United States to support a coup led by Colonel Joseph Mobutu in 1965. Mobutu quickly seized complete power of the Congo and renamed the country Zaire. He sought to Africanize the country, changing his own name to Mobutu Sese Seko, and demanded that African citizens change their Western names to traditional African names. Mobutu sought to repress any opposition to his rule, in which he successfully did throughout the 1980s. However, with his regime weakened in the 1990s, Mobutu was forced to agree to a power - sharing government with the opposition party. Mobutu remained the head of state and promised elections within the next two years that never took place.
Document 5: Singa Mwambe: Singa Mwambe is a football club in Kisangani, Democratic Republic of Congo.  In the 2006/2007 season they played in the Linafoot, the top level of professional football in DR Congo.
Document 6: AS Maïka: AS Maïka is a football club in Uvira, Democratic Republic of Congo.  They play in the Linafoot, the top level of professional football in DR Congo.
Document 7: AS Maniema Union: AS Maniema Union is a football club in Kindu, Democratic Republic of Congo.  They play in the Linafoot, the top level of professional football in DR Congo. They play at 1,000 capacity Maniema Union stadium.  Maniema took part in the 2008 CAF Confederation Cup.
Document 8: Republic of the Congo: The region was dominated by Bantu-speaking tribes at least 3,000 years ago, who built trade links leading into the Congo River basin. Congo was formerly part of the French colony of Equatorial Africa. The Republic of the Congo was established on the 28th of November 1958 but gained independence from France in 1960. The sovereign state has had multi-party elections since 1992, although a democratically elected government was ousted in the 1997 Republic of the Congo Civil War, and President Denis Sassou Nguesso, who first came to power in 1979, has ruled for 35 of the past 40 years.
Document 9: FC Mwangaza: FC Mwangaza is a football club in Goma, Democratic Republic of Congo. They play in the Linafoot, the top level of professional football in DR Congo.
Document 10: Republic of the Congo: Following the revision of the French constitution that established the Fifth Republic in 1958, the AEF dissolved into its constituent parts, each of which became an autonomous colony within the French Community. During these reforms, Middle Congo became known as the Republic of the Congo in 1958 and published its first constitution in 1959. Antagonism between the pro-Opangault Mbochis and the pro-Youlou Balalis resulted in a series of riots in Brazzaville in February 1959, which the French Army subdued.
Document 11: Republic of the Congo: Pascal Lissouba, who became Congo's first elected president (1992–1997) during the period of multi-party democracy, attempted to implement economic reforms with IMF backing to liberalise the economy. In June 1996 the IMF approved a three-year SDR69.5m (US$100m) enhanced structural adjustment facility (ESAF) and was on the verge of announcing a renewed annual agreement when civil war broke out in Congo in mid-1997.
Document 12: AS Mabela a Bana: AS Mabela a Bana is a football club in Mwene-Ditu, Democratic Republic of Congo.  In the 2006/2007 season they played in the Linafoot, the top level of professional football in DR Congo.
Document 13: AS Kabasha: AS Kabasha connu sous le nom Association Sportive Kabasha est une équipe de football de Goma, Democratic Republic of Congo. . Champion du Democratic Republic of Congo en 2005. Le club est classé parmi les premiers clubs de la province du Nord-Kivu. They play in the Linafoot, the top level of professional football in DR Congo.
Document 14: AS Momekano: AS Momekano is a football club in Bandundu, Democratic Republic of Congo.  They play in the Linafoot, the top level of professional football in DR Congo.
Document 15: Republic of the Congo: Under the 1963 constitution, Massamba-Débat was elected President for a five-year term. During Massamba-Débat's term in office the regime adopted "scientific socialism" as the country's constitutional ideology. In 1965, Congo established relations with the Soviet Union, the People's Republic of China, North Korea and North Vietnam. Massamba-Débat's regime also invited several hundred Cuban army troops into the country to train his party's militia units and these troops helped his government survive a coup in 1966 led by paratroopers loyal to future President Marien Ngouabi. Nevertheless, Massamba-Débat was unable to reconcile various institutional, tribal and ideological factions within the country and his regime ended abruptly with a bloodless coup d'état in September 1968.
ground_truth: Fulbert Youlou
sub_queries: FC Mwangaza >> country Answer: Congo
Who was the first leader of the independent Congo ? Answer: Fulbert Youlou