Question: Who is the President of the Senate in the richest country in Africa?

full_context: Document 1: Vice President of Nigeria: The Vice President of Nigeria is the second - in - command to the President of Nigeria in the Government of Nigeria. Officially styled Vice President of the Federal Republic of Nigeria, the Vice President is elected alongside the President in national elections. The office is currently held by Yemi Osinbajo.
Document 2: Economy of the Middle East: Rank Country GDP Per Capita GDP (PPP) Total ($US B) GDP (Millions of US $) 2014 Israel $35,200 $281.9 296,100 Iran $18,100 $876 416,490 Kuwait $71,900 $150.2 172,608 United Arab Emirates $67,900 $200.4 399,451 5 Oman $46,700 $69.43 77,677 6 Bahrain $50,700 $22.85 33,862 7 Saudi Arabia $55,200 $581.3 746,248 8 Turkey $24,900 $1189.9 798,332 9 Lebanon $18,500 $46.03 50,028 10 Qatar $127,700 $101.2 210,109 11 Egypt $12,600 $470.4 286,435 12 Jordan $12,300 $33.06 35,878 13 Syria $2,900 $102.5 77,460 14 Iraq $17,900 $249.4 223,508 15 Palestinian territories $4,300 $N / A N / A 16 Yemen $2,400 $58.2 43,229
Document 3: Gabon: Abundant petroleum and foreign private investment have helped make Gabon one of the most prosperous countries in Sub-Saharan Africa, with the 7th highest HDI and the fourth highest GDP per capita (PPP) (after Mauritius, Equatorial Guinea and Seychelles) in the region. GDP grew by more than 6% per year from 2010 to 2012. However, because of inequality in income distribution, a significant proportion of the population remains poor.
Document 4: President of the Senate of Nigeria: The President of the Senate is the presiding officer of the Senate of Nigeria, elected by its membership. The Senate President is second in line for succession to the Nigerian presidency, after the Vice President of Nigeria. The current President of the Senate is Bukola Saraki.
Document 5: List of African countries by GDP (nominal): 2017 Rank Country Nominal GDP ($billions) Nominal GDP per capita (US $) Notes Nigeria 376.284 1,994.235 South Africa 349.299 6,179.870 Egypt 237.037 2,500.772 Algeria 178.287 4,292.272 Angola 124.209 4,407.657 6 Sudan 119.00 1,428.000 7 Morocco 109.824 3,151.145 8 Ethiopia 80.874 872.840 9 Kenya 79.511 1,701.550 10 Tanzania 51.725 1,033.567 11 Ghana 47.032 1,663.190 12 Democratic Republic of the Congo 41.441 478.237 13 Ivory Coast 40.360 1,616.981 14 Tunisia 40.275 3,496.286 15 Cameroon 34.006 1,400.743 16 Libya 31.331 4,858.672 17 Uganda 26.349 699.410 18 Zambia 25.504 1,479.542 19 Zimbabwe 17.491 1,175.723 20 Botswana 17.168 7,876.997 21 Senegal 16.463 1,038.094 22 Mali 15.318 810.771 23 Gabon 15.206 7,971.589 24 Namibia 12.687 5,413.508 25 Mozambique 12.681 429.296 26 Burkina Faso 12.569 663.806 27 Mauritius 12.428 9,794.102 28 Madagascar 11.463 447.558 29 Equatorial Guinea 10.725 12,726.956 30 Chad 9.872 810.163 31 Guinea 9.721 749.463 32 Benin 9.238 830.404 33 Rwanda 9.137 771.702 34 Congo 8.513 1,958.174 35 Niger 8.253 439.997 36 Somalia 7.382 547.32 37 Malawi 6.206 323.740 38 Eritrea 5.813 979.692 39 Mauritania 5.116 1,317.938 40 Togo 4.767 611.133 41 Swaziland 4.491 3,914.821 42 Sierra Leone 3.641 491.448 43 Burundi 3.396 312.463 44 Liberia 3.285 729.292 45 South Sudan 2.870 228.034 46 Lesotho 2.768 1,425.310 47 Djibouti 2.029 1,988.765 48 Central African Republic 1.928 386.806 49 Cape Verde 1.741 3,237.597 50 Seychelles 1.482 15,685.955 51 Guinea - Bissau 1.350 794.107 52 The Gambia 1.009 480.040 53 Comoros 0.652 787.831 54 São Tomé and Príncipe 0.379 1,785.280 -- Total 2,191.104
Document 6: Age of candidacy: In Nigeria, a person must be at least 35 years of age to be elected President or Vice President, 30 to be a Senator or State Governor, and 25 to be a Representative in parliament.
Document 7: List of countries by GDP (nominal): The United States is the world's largest economy with a GDP of approximately $18.56 trillion, notably due to high average incomes, a large population, capital investment, moderate unemployment, high consumer spending, a relatively young population, and technological innovation. Tuvalu is the world's smallest national economy with a GDP of about $32 million because of its very small population, a lack of natural resources, reliance on foreign aid, negligible capital investment, demographic problems, and low average incomes.
Document 8: Nigeria: Nigeria was ranked 30th in the world in terms of GDP (PPP) in 2012. Nigeria is the United States' largest trading partner in sub-Saharan Africa and supplies a fifth of its oil (11% of oil imports). It has the seventh-largest trade surplus with the US of any country worldwide. Nigeria is the 50th-largest export market for US goods and the 14th-largest exporter of goods to the US. The United States is the country's largest foreign investor. The International Monetary Fund (IMF) projected economic growth of 9% in 2008 and 8.3% in 2009. The IMF further projects an 8% growth in the Nigerian economy in 2011.
Document 9: Nigeria: As of 2015[update], Nigeria is the world's 20th largest economy, worth more than $500 billion and $1 trillion in terms of nominal GDP and purchasing power parity respectively. It overtook South Africa to become Africa's largest economy in 2014. Also, the debt-to-GDP ratio is only 11 percent, which is 8 percent below the 2012 ratio. Nigeria is considered to be an emerging market by the World Bank; It has been identified as a regional power on the African continent, a middle power in international affairs, and has also been identified as an emerging global power. Nigeria is a member of the MINT group of countries, which are widely seen as the globe's next "BRIC-like" economies. It is also listed among the "Next Eleven" economies set to become among the biggest in the world. Nigeria is a founding member of the Commonwealth of Nations, the African Union, OPEC, and the United Nations amongst other international organisations.
Document 10: United States Senate: The presiding officer of the Senate is the Vice President of the United States, who is President of the Senate. In the Vice President's absence, the President Pro Tempore, who is customarily the senior member of the party holding a majority of seats, presides over the Senate. In the early 20th century, the practice of majority and minority parties electing their floor leaders began, although they are not constitutional officers.
Document 11: Horn of Africa: Horn of Africa Countries and territories Djibouti Eritrea Ethiopia Somalia Major regional organizations Arab League, Common Market for Eastern and Southern Africa, Community of Sahel - Saharan States, Intergovernmental Authority on Development Population 122,618,170 (2016 est.) Area 1,882,757 km Languages Afar Arabic Amharic French Oromo Somali Tigrinya Religion Islam, Christianity, traditional faiths Time zones UTC + 03: 00 Currency Djiboutian franc Eritrean nakfa Ethiopian birr Somali shilling Capitals Addis Ababa (Ethiopia) Asmara (Eritrea) Djibouti (Djibouti) Mogadishu (Somalia) Total GDP (PPP) $247.751 billion (2016) Total GDP (nominal) $102,057 billion (2016)
Document 12: Georgia State Senate: The presiding officer of the Senate is the President of the Senate. A President Pro Tempore, usually a high - ranking member of the majority party, acts as President in case of the temporary disability of the President. In case of the death, resignation, or permanent disability of the President or in the event of the succession of the President to the executive power, the President Pro Tempore becomes President. The Senate also has as an officer the Secretary of the Senate.
Document 13: Deputy President of the Nigerian Senate: Deputy Senate Presidents of Nigeria Deputy Senate President Term Party Ibrahim Mantu 1999 - 2007 PDP Ike Ekweremadu 2007 - present PDP
Document 14: List of African countries by GDP (PPP): Region Rank Country 2015 GDP (PPP) millions of International dollars -- Africa 5,736,700 Nigeria 1,192.00 Egypt 995.97 South Africa 724.01 Algeria 570.64 Morocco 274.53 6 Angola 185.25 7 Sudan 167.42 8 Ethiopia 159.22 9 Tanzania 150.4 10 Kenya 143.05 11 Tunisia 127.21 12 Ghana 113.35 13 Libya 92.88 14 Uganda 79.75 15 Ivory Coast 78.34 16 Cameroon 72.11 17 Zambia 64.65 18 Democratic Republic of the Congo 63.27 19 Botswana 37.16 20 Senegal 36.30 21 Madagascar 35.56 22 Gabon 34.41 23 Chad 33.73 24 Mozambique 32.00 25 Burkina Faso 31.18 26 Mali 29.15 27 Zimbabwe 28.90 28 Republic of the Congo 27.92 29 Equatorial Guinea 25.94 30 Mauritius 24.84 31 Namibia 24.51 32 Benin 21.16 33 Malawi 20.56 34 Rwanda 20.32 35 Niger 18.96 36 Mauritania 16.43 37 Guinea 15.28 38 Swaziland 10.87 39 Togo 10.82 40 Eritrea 7.94 41 Burundi 7.88 42 Somalia 5.90 43 Lesotho 5.78 44 Gambia 3.27 45 Liberia 3.78 46 Cape Verde 3.48 47 Djibouti 3.09 48 Seychelles 2.53 49 Guinea - Bissau 1.94 50 Central African Republic 1.62 51 Comoros 1.21 52 São Tomé and Príncipe 0.66
Document 15: Nigeria: Nigeria is a Federal Republic modelled after the United States, with executive power exercised by the president. It is influenced by the Westminster System model[citation needed] in the composition and management of the upper and lower houses of the bicameral legislature. The president presides as both Head of State and head of the national executive; the leader is elected by popular vote to a maximum of two 4-year terms. In the March 28, 2015 presidential election, General Muhammadu Buhari emerged victorious to become the Federal President of Nigeria, defeating then incumbent Goodluck Jonathan.
ground_truth: Bukola Saraki
sub_queries: which one is the richest country in africa Answer: Nigeria
who is the president of the senate in Nigeria Answer: Bukola Saraki