Problem: Information:  - The Mediterranean Sea (pronounced ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The sea is sometimes considered a part of the Atlantic Ocean, although it is usually identified as a separate body of water.  - A mid-ocean ridge is an underwater mountain system formed by plate tectonics. It consists of various mountains linked in chains, typically having a valley known as a rift running along its spine. This type of oceanic mountain ridge is characteristic of what is known as an oceanic spreading center, which is responsible for seafloor spreading. The production of new seafloor results from mantle upwelling in response to plate spreading; this isentropic upwelling solid mantle material eventually exceeds the solidus and melts. The buoyant melt rises as magma at a linear weakness in the oceanic crust, and emerges as lava, creating new crust upon cooling. A mid-ocean ridge demarcates the boundary between two tectonic plates, and consequently is termed a divergent plate boundary.  - Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. A large number of submarine volcanoes are located near areas of tectonic plate movement, known as mid-ocean ridges. The volcanoes at mid-ocean ridges alone are estimated to account for 75% of the magma output on Earth. Although most submarine volcanoes are located in the depths of seas and oceans, some also exist in shallow water, and these can discharge material into the atmosphere during an eruption. The total number of submarine volcanoes is estimated to be over 1 million, of which some 75 000 rise more than 1 km above the seabed.  - Sicily is the largest island in the Mediterranean Sea. It constitutes an autonomous Region of Italy, along with surrounding minor islands, officially referred to as "Regione Siciliana" (in Italian, Sicilian Region).  - Campi Flegrei del Mar di Sicilia is a field of submarine volcanoes located south - west of Sicily . It includes the vent of Ferdinandea , otherwise known as Graham Island , which erupted and emerged above sea level in 1831 , and encompasses a larger volcano known as Empedocles . The last recorded eruption was in 1867 , from a vent named Pinne . There was mild seismic unrest at Ferdinandea in 2000 - 2002 . At its highest , Campi Flegrei comes to 8 meters ( 26 feet ) below sea level .    Given the information, choose the subject and object entities that have the relation of 'instance of'.

A: campi flegrei mar sicilia , mountain


[Q]: Information:  - Ghana, officially the Republic of Ghana is a unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic Ocean, in the subregion of West Africa. Spanning a land mass of 238,535 km², Ghana is bordered by the Ivory Coast in the west, Burkina Faso in the north, Togo in the east and the Gulf of Guinea and Atlantic Ocean in the south. "Ghana" means "Warrior King" in the Soninke language.  - The Gulf of Guinea is the northeasternmost part of the tropical Atlantic Ocean between Cape Lopez in Gabon, north and west to Cape Three Points in Western region Ghana. The intersection of the Equator and Prime Meridian (zero degrees latitude and longitude) is in the gulf.  - Ivory Coast or Côte d'Ivoire , officially named the Republic of Côte d'Ivoire, is a country located in West Africa. Ivory Coast's political capital is Yamoussoukro, and its economic capital and largest city is the port city of Abidjan. Its bordering countries are Guinea and Liberia in the west, Burkina Faso and Mali in the north, and Ghana in the east. The Gulf of Guinea (Atlantic Ocean) is located south of Ivory Coast.  - This is a list of cities in Ivory Coast .  - Burkina Faso is a landlocked country in Africa around in size. It is surrounded by six countries: Mali to the north; Niger to the east; Benin to the southeast; Togo and Ghana to the south; and Ivory Coast to the southwest. Its capital is Ouagadougou. In 2014 its population was estimated at just over 17.3 million. Burkina Faso is a francophone country and French is an official language of government and business. Formerly called the Republic of Upper Volta, the country was renamed "Burkina Faso" on 4 August 1984 by then-President Thomas Sankara. Residents of Burkina Faso are known as "Burkinabé".  - Guinea , officially the Republic of Guinea, is a country on the West coast of Africa. Formerly known as French Guinea, the modern country is sometimes referred to as Guinea-Conakry in order to distinguish it from other parts of the wider region of the same name, such as Guinea-Bissau and Equatorial Guinea. Guinea has a population of 10.5 million and an area of .  - West Africa, also called Western Africa and the West of Africa, is the westernmost subregion of Africa. West Africa has been defined as including 18 countries: Benin, Burkina Faso, the island nation of Cape Verde, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria, the island of Saint Helena, Senegal, Sierra Leone, São Tomé and Príncipe and Togo.  - Mali, officially the Republic of Mali, is a landlocked country in Africa. Mali is the eighth-largest country in Africa, with an area of just over . The population of Mali is 14.5 million. Its capital is Bamako. Mali consists of eight regions and its borders on the north reach deep into the middle of the Sahara Desert, while the country's southern part, where the majority of inhabitants live, features the Niger and Senegal rivers. The country's economy centers on agriculture and fishing. Some of Mali's prominent natural resources include gold, being the third largest producer of gold in the African continent, and salt. About half the population lives below the international poverty line of $1.25 (U.S.) a day. A majority of the population (90%) are Muslims.  - Liberia , officially the Republic of Liberia, is a country on the West African coast. Liberia means "Land of the Free" in Latin. It is bordered by Sierra Leone to its west, Guinea to its north and Ivory Coast to its east. It covers an area of and has a population of 4,503,000 people. English is the official language and over 20 indigenous languages are spoken, representing the numerous tribes who make up more than 95% of the population. The country's capital and largest city is Monrovia.  - Yamoussoukro is the political capital and administrative capital city of Ivory Coast and an autonomous district of the country. As of the 2014 preliminary census, the district had a population of 355,573 inhabitants. Located north-west of Abidjan, the administrative centre on the coast, upon rolling hills and plains, the municipality covers .  - Abidjan is the economic capital of Ivory Coast and the most populous French-speaking city in West Africa. According to the 2014 Ivory Coast census, Abidjan's population was 4.7 million, which is 20 percent of the overall population of the country. Within West Africa, only Lagos, the former capital of Nigeria, surpasses Abidjan in population. Considered the cultural crossroads of West Africa, Abidjan is characterised by a high level of industrialisation and urbanisation.    Given the information, choose the subject and object entities that have the relation of 'is a list of'.
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[A]:
list of cities in ivory coast , city