Question: Who was the first president of the country where Obock is located?

full_context: Document 1: Mohamed Abar: Mohamed Elmi Abar is a Djiboutian professional football manager. From May to October 2008 he coached Djibouti national football team.
Document 2: Somalis: A referendum was held in neighboring Djibouti (then known as French Somaliland) in 1958, on the eve of Somalia's independence in 1960, to decide whether or not to join the Somali Republic or to remain with France. The referendum turned out in favour of a continued association with France, largely due to a combined yes vote by the sizable Afar ethnic group and resident Europeans. There was also widespread vote rigging, with the French expelling thousands of Somalis before the referendum reached the polls. The majority of those who voted no were Somalis who were strongly in favour of joining a united Somalia, as had been proposed by Mahmoud Harbi, Vice President of the Government Council. Harbi was killed in a plane crash two years later. Djibouti finally gained its independence from France in 1977, and Hassan Gouled Aptidon, a Somali who had campaigned for a yes vote in the referendum of 1958, eventually wound up as Djibouti's first president (1977–1991).
Document 3: Abdallah Mohamed Kamil: Abdallah Mohamed Kamil (عبد الله محمد كامل) (born 1936, in Obock) is a Djiboutian politician. He served as Prime Minister of the country from 5 February 1978 to 2 October 1978.
Document 4: Somalia: On 10 September 2012, parliament elected Hassan Sheikh Mohamud as the new President of Somalia. President Mohamud later appointed Abdi Farah Shirdon as the new Prime Minister on 6 October 2012, who was succeeded in office by Abdiweli Sheikh Ahmed on 21 December 2013. On 17 December 2014, former Premier Omar Abdirashid Ali Sharmarke was reappointed Prime Minister.
Document 5: Central African Republic: By 1990, inspired by the fall of the Berlin Wall, a pro-democracy movement arose. Pressure from the United States, France, and from a group of locally represented countries and agencies called GIBAFOR (France, the USA, Germany, Japan, the EU, the World Bank, and the UN) finally led Kolingba to agree, in principle, to hold free elections in October 1992 with help from the UN Office of Electoral Affairs. After using the excuse of alleged irregularities to suspend the results of the elections as a pretext for holding on to power, President Kolingba came under intense pressure from GIBAFOR to establish a "Conseil National Politique Provisoire de la République" (Provisional National Political Council, CNPPR) and to set up a "Mixed Electoral Commission", which included representatives from all political parties.[citation needed]
Document 6: Djibouti: Djibouti ( (listen) jih-BOO-tee; Afar: Yibuuti, Arabic: جيبوتي‎ Jībūtī, French: Djibouti, Somali: Jabuuti, officially the Republic of Djibouti) is a country located in the Horn of Africa. It is bordered by Eritrea in the north, Ethiopia in the west and south, and Somalia in the southeast. The remainder of the border is formed by the Red Sea and the Gulf of Aden at the east. Djibouti occupies a total area of 23,200 km2 (8,958 sq mi). The state of Djibouti is predominantly inhabited by two ethnic groups, the Somali and the Afar people, the Somalis being the major ethnic group of the country.
Document 7: Kamal Ganzouri: Kamal Ganzouri (, ‎; born 12 January 1933) is an Egyptian economist who served as Prime Minister of Egypt from 7 December 2011 to 24 July 2012. He previously served as prime minister from 1996 to 1999. He came to power in 1996 succeeding Atef Sedki, and was in turn succeeded by Atef Ebeid in 1999. He was branded "Minister of the Poor" and "the Opposition Minister" because of his way of dealing with limited income people and the opposition. Before becoming prime minister, Ganzouri served as Minister of Planning and International Cooperation. On 24 November 2011, Egypt's military rulers appointed him as prime minister. He was sworn in and took office on 7 December 2011.
Document 8: Eritrea: In the 1950s, the Ethiopian feudal administration under Emperor Haile Selassie sought to annex Eritrea and Italian Somaliland. He laid claim to both territories in a letter to Franklin D. Roosevelt at the Paris Peace Conference and at the First Session of the United Nations. In the United Nations, the debate over the fate of the former Italian colonies continued. The British and Americans preferred to cede all of Eritrea except the Western province to the Ethiopians as a reward for their support during World War II. The Independence Bloc of Eritrean parties consistently requested from the UN General Assembly that a referendum be held immediately to settle the Eritrean question of sovereignty.
Document 9: 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 10: Somalis: Somali people in the Horn of Africa are divided among different countries (Somalia, Djibouti, Ethiopia, and northeastern Kenya) that were artificially and some might say arbitrarily partitioned by the former imperial powers. Pan-Somalism is an ideology that advocates the unification of all ethnic Somalis once part of Somali empires such as the Ajuran Empire, the Adal Sultanate, the Gobroon Dynasty and the Dervish State under one flag and one nation. The Siad Barre regime actively promoted Pan-Somalism, which eventually led to the Ogaden War between Somalia on one side, and Ethiopia, Cuba and the Soviet Union on the other.
Document 11: Muhammad Osman Said: Muhammad Osman Said (October 1922 – 31 December 2007) was a Libyan politician that held many positions in the era of the Kingdom of Libya including the Prime Minister of Libya from 17 October 1960 to 19 March 1963.
Document 12: Mohamed Arab: Mohamed Saber Ibrahim Arab (born 23 December 1948) is a veteran politician, who has served as Egypt's former minister of culture in different cabinets, including the Beblawi cabinet.
Document 13: Abdul Hamid al-Bakkoush: Abdul Hamid al-Bakkoush () (10 August 1933 – November 1984 ("see talk page of the article)" or 4 December 2007) was Prime Minister of Libya from 25 October 1967 to 4 September 1968. After the proclamation of the Jamahiriya by Gaddafi, he went into exile to Egypt and became one of the leaders of the opposition to the Libyan government.He also held the office of Minister of Justice thrice between January 1964 and September 1968.
Document 14: Somalis: British Somaliland became independent on 26 June 1960 as the State of Somaliland, and the Trust Territory of Somalia (the former Italian Somaliland) followed suit five days later. On 1 July 1960, the two territories united to form the Somali Republic, albeit within boundaries drawn up by Italy and Britain. A government was formed by Abdullahi Issa Mohamud and Muhammad Haji Ibrahim Egal other members of the trusteeship and protectorate governments, with Haji Bashir Ismail Yusuf as President of the Somali National Assembly, Aden Abdullah Osman Daar as the President of the Somali Republic and Abdirashid Ali Shermarke as Prime Minister (later to become President from 1967 to 1969). On 20 July 1961 and through a popular referendum, the people of Somalia ratified a new constitution, which was first drafted in 1960. In 1967, Muhammad Haji Ibrahim Egal became Prime Minister, a position to which he was appointed by Shermarke. Egal would later become the President of the autonomous Somaliland region in northwestern Somalia.
Document 15: Abdessalam Jalloud: Abdessalam Jalloud () (born 15 December 1944) was Prime Minister of Libya from 16 July 1972 to 2 March 1977, during the government of Muammar Gaddafi. He was also Minister of Finance from 1970 until 1972.
ground_truth: Hassan Gouled Aptidon
sub_queries: Obock >> country Answer: Djibouti
Who was the first president of Djibouti ? Answer: Hassan Gouled Aptidon