Question: Tshepo Motsepe is the wife of the trade union leader who has served as Deputy President under which world leader?

full_context: Document 1: Cabinet of Nelson Mandela: Nelson Mandela took oath as President of South Africa on 10 May 1994 and announced his cabinet on 11 May 1994. The cabinet included members of Mandela's African National Congress, National Party and Inkatha Freedom Party, as it was required by law that all parties winning more than 20 seats in the parliament be given representation in the cabinet.
Document 2: Tshekedi Khama II: Tshekedi Stanford Khama (born 9 June 1958) is a Botswana Member of Parliament from Serowe North-West. He is a member of the Botswana Democratic Party (BDP). He is also the brother of the current President of Botswana, Ian Khama, and one of the three sons of the first President of Botswana, Seretse Khama and Ruth Williams Khama.
Document 3: Tshepo Motsepe: Tshepo Motsepe is the current second lady of South Africa and the wife of Cyril Ramaphosa the Deputy President of South Africa and the deputy president of South African ruling party the ANC.
Document 4: Nomvula Mokonyane: Nomvula Paula Mokonyane (born 28 June 1963, Kagiso, Gauteng) is the Minister of Department of Water and Sanitation of South Africa, appointed on May 25, 2014 in the cabinet of South Africa under Jacob Zuma. She is also the former Premier of Gauteng province, South Africa elected following the 2009 South African general election, she was replaced by ANC Secretary David Makhura in May 2014. She is also Honorary President of SA-China People's Friendship Association.
Document 5: Presidency of Nelson Mandela: Nelson Mandela, an anti-apartheid activist, lawyer, and former political prisoner, was elected to the presidency of South Africa in 1994, following which he served one term in office (1994–99). He was the first non-white head of state in South African history, as well as the first to take office following the dismantling of the apartheid system and the introduction of multiracial democracy. Mandela was also the oldest head of state in South Africa's history, taking office at the age of seventy-five.
Document 6: Tánaiste: An Tánaiste ( ) is the deputy head of government of Ireland and the second-most senior officer in the Government of Ireland. An Tánaiste is appointed by the President of Ireland on the advice of An Taoiseach. The current office holder is Frances Fitzgerald, TD, who was appointed on 6 May 2016.
Document 7: Bobby Godsell: Robert Michael "Bobby" Godsell (born 14 September 1952 in Johannesburg) is a retired South African businessman and the former CEO of South African gold mining company AngloGold Ashanti, a position he held from 1998 to 2007. He was the Non-Executive Chairman of Eskom from 2008 to 2009 and was appointed to the National Planning Commission of South Africa by South African President Jacob Zuma on 30 April 2010.
Document 8: Jacob Zuma: Jacob Gedleyihlekisa Zuma (born 12 April 1942) is a South African politician. He has served as the President of South Africa since 2009. Zuma is the President of the African National Congress (ANC), the governing political party, and was Deputy President of South Africa from 1999-2005.
Document 9: South African Ambassador to the United States: The position of South African ambassador to the United States is the most prestigious and top diplomatic post in South Africa. The position was first held in March 1949, following the upgrade of South Africa's diplomatic mission to an embassy. The post has been held by many important politicians and is currently held by M. J. Mahlangu.
Document 10: Julius Malema: Julius Sello Malema (born 3 March 1981) is the leader of the Economic Freedom Fighters, a South African political party, which he founded in July 2013. He previously served as President of the African National Congress Youth League from 2008 to 2012. Malema was a member of the ANC until his expulsion from the party in April 2012. He occupies a notably controversial position in South African public and political life, having risen to prominence with his support for African National Congress president, and later President of South Africa, Jacob Zuma. He has been described by both Zuma and the Premier of Limpopo Province as the "future leader" of South Africa. Less favourable portraits paint him as a "reckless populist" with the potential to destabilise South Africa and to spark racial conflict.
Document 11: Danny Jordaan: Daniel Alexander "Danny" Jordaan (born 3 September 1951) is the president of the South African Football Association (SAFA). He is a former lecturer, politician and anti-apartheid activist. He led South Africa's successful 2010 FIFA World Cup bid, the first successful one for Africa, as well as the country's unsuccessful bid four years earlier for the 2006 FIFA World Cup, and was the Chief Executive Officer of the 2010 FIFA World Cup South Africa. He is also the former Mayor of the Nelson Mandela Bay Metropolitan Municipality, having served from May 2015 until August 2016.
Document 12: First Lady of Botswana: The First Lady of the Republic of Botswana is the title used by the wife of the President of Botswana. Botswana's inaugural First Lady was Lady Ruth Williams Khama, the English-born wife of the country's inaugural President, Seretse Khama.
Document 13: Cyril Ramaphosa: Matamela Cyril Ramaphosa (born 17 November 1952) is a South African politician, businessman, activist, and trade union leader who has served as the Deputy President of South Africa under President Jacob Zuma since 2014. He was elected as Deputy President of the African National Congress (ANC) at the ANC National Conference in Mangaung in December 2012. He is also the Chairman of the National Planning Commission, which is responsible for strategic planning for the future of South Africa, with the goal of rallying the nation "around a common set of objectives and priorities to drive development over the longer term".
Document 14: Mluleki George: Mluleki Editor George (born 2 February 1948) is the former deputy minister of defence of South Africa. He served as treasurer-general of the Congress of the People, a South African political party formed by former Defence Minister Mosiuoa Lekota in 2008. He has founded a new political party, the United Congress, which he says will restore the moral fibre of society which has disintegrated.
Document 15: Hlaudi Motsoeneng: Hlaudi Motsoeneng served as the acting Chief operating officer of the South African Broadcasting Corporation (SABC) from 2011 to 2013. Motsoeneng was removed from his position as Chief operating officer after it had been found that he lied about his qualifications. After being removed as acting Chief operating officer it was announced that Motsoeneng would move back to his previous position as Group Executive Editor of Provinces and Corporate Affairs of the SABC. In December 2016, the Western Cape High Court ruled that Motsoeneng’s appointment as Group Executive was illegal and that he was “not entitled to occupy any position at the SABC”.
ground_truth: Jacob Zuma