Task: Question Answering
Input (English): Context: Denis Sassou Nguesso (born 23 November 1943) is a Congolese politician who has been the President of the Republic of the Congo since 1997; he was previously President from 1979 to 1992. During his first period as President, he headed the single-party régime of the Congolese Party of Labour (PCT) for 12 years. Under pressure from international sources, he introduced multiparty politics in 1990 and was then stripped of executive powers by the 1991 National Conference, remaining in office as a ceremonial head of state. He stood as a candidate in the 1992 presidential election but was defeated, placing third., Denis Sassou Nguesso ( born 1943 ) is a Congolese politician who has been the President of the Republic of the Congo since 1997 ; he was previously President from 1979 to 1992 . During his first period as President , he headed the single - party regime of the Congolese Party of Labour ( PCT ) for 12 years . Under pressure from international sources , he introduced multiparty politics in 1990 and was then stripped of executive powers by the 1991 National Conference , remaining in office as a ceremonial head of state . He stood as a candidate in the 1992 presidential election but was defeated , placing third . Sassou Nguesso was an opposition leader for five years before returning to power at the conclusion of the June -- October 1997 civil war , in which his rebel forces ousted President Pascal Lissouba . Following a transitional period , he won the 2002 presidential election , which involved low opposition participation ; he was re-elected in the 2009 presidential election . Sassou Nguesso is backed by a variety of political parties , most importantly the PCT. He is the President of the PCT Central Committee ., The People's Republic of the Congo was a self-declared MarxistLeninist socialist state that was established in 1970 in the Republic of the Congo. Led by the Congolese Party of Labour ("PCT"), it existed until 1991, when following the dissolution of the Soviet Union, the country was renamed and Andre Milongo, a transitional prime minister was named., Pierre Ngolo (born 27 June 1954) is a Congolese politician who has been Secretary-General of the Congolese Labour Party (PCT) since August 2011. He was First Secretary of the National Assembly of Congo-Brazzaville from 2002 to 2012., Marien Ngouabi (or N'Gouabi) (December 31, 1938  March 18, 1977) was the military President of the Republic of the Congo from January 1, 1969, to March 18, 1977., The Congolese Party of Labour (PCT), founded in 1969 by Marien Ngouabi, is the ruling political party of the Republic of the Congo. It was originally a Marxist-Leninist pro-Soviet party, which founded the People's Republic of the Congo, but moved towards a moderate left-wing stance in the early 1990s. Denis Sassou Nguesso is President of the PCT Central Committee, and Pierre Ngolo is the PCT's Secretary-General., Subject: denis sassou nguesso, Relation: date_of_birth, Options: (A) 1 (B) 1938 (C) 1943 (D) 1969 (E) 1970 (F) 1979 (G) 1992 (H) 1997 (I) 2002 (J) 23 (K) 23 november 1943 (L) 27 (M) 31 (N) november 1943
Output (English): 23 november 1943