Question: What nationality is Folarin Ogunsola, a swimmer who competes for the smallest nation in mainland Africa?

Context paragraphs:
Bahrain: Bahrain ( ; Arabic: البحرين‎ ‎   ), officially the Kingdom of Bahrain (Arabic: مملكة البحرين‎ ‎ "  "), is a small Arab constitutional monarchy in the Persian Gulf.  It is an island country consisting of a small archipelago centered around Bahrain Island, situated between the Qatar peninsula and the north eastern coast of Saudi Arabia, to which it is connected by the 25 km King Fahd Causeway.  Bahrain's population is 1,234,571 (c. 2010), including 666,172 non-nationals.  It is 780 km in size, making it the third smallest nation in Asia after the Maldives and Singapore.

Ceuta: Ceuta (assimilated pronunciation , also ; ] ; Arabic: سبتة, "Sabtah") is an 18.5 km2 Spanish autonomous city on the north coast of Africa, separated by 14 kilometers from Cadiz province on the Spanish mainland by the Strait of Gibraltar and sharing a 6.4 kilometer land border with M'diq-Fnideq Prefecture in the Kingdom of Morocco.  It lies along the boundary between the Mediterranean Sea and the Atlantic Ocean and is one of nine populated Spanish territories in Africa and, along with Melilla, one of two populated territories on mainland Africa.  It was part of Cádiz province until 14 March 1995 when both Ceuta and Melilla's Statutes of Autonomy were passed, the latter having been part of Almeria province.

Geography of the Gambia: The Gambia is a very small and narrow country with the border based on the Gambia River.  The country is less than 48 km wide at its greatest width.  The country's present boundaries were defined in 1889 after an agreement between the United Kingdom and France.  It is often claimed by Gambians that the distance of the borders from the Gambia River corresponds to the area that British naval cannon of the time could reach from the river's channel.  However, there is no historical evidence to support the story, and the border was actually delineated using careful surveying methods by the Franco-British boundary commission.  Apart from its coastline, where the Gambia borders the Atlantic Ocean, it is an enclave of Senegal and is by far the smallest country on mainland Africa.

Lilian's lovebird: The Lilian's lovebird ("Agapornis lilianae"), also known as Nyasa lovebird, is a small African parrot species of the lovebird genus.  It is mainly green and has orange on its upper chest and head.  It is 13 cm (5 inches) long and is the smallest parrot on mainland Africa.  In captivity it is uncommon and difficult to breed.

The Gambia: The Gambia ( ), officially the Republic of The Gambia, is a country in West Africa that is entirely surrounded by Senegal except for its coastline on the Atlantic Ocean at its western end.  It is the smallest country in mainland Africa.

List of companies of Bahrain: Bahrain is a small Arab monarchy in the Persian Gulf.  Bahrain consists of a group of islands between the Qatar peninsula and the north eastern coast of Saudi Arabia.  It is an island country situated near the western shores of the Persian Gulf in the Middle East.  It is a small archipelago centered on Bahrain Island, its largest land mass.  It is just 23 km east off Saudi Arabia, connected to it through the King Fahd Causeway.  The peninsula of Qatar is also nearby, about 50 km to the southeast across the Gulf of Bahrain.  Iran lies 200 km to the north across the Persian Gulf.  The population in 2010 stood at 1,234,567, including 666,172 non-nationals.  It is 780 km in size, making it the third smallest nation in Asia after the Maldives and Singapore.

List of companies based in The Gambia: The Gambia, officially the Republic of the Gambia, is a country in West Africa.  It is surrounded by Senegal, apart from a short strip of Atlantic coastline at its western end.  It is the smallest country on mainland Africa.  The Gambia has a liberal, market-based economy characterised by traditional subsistence agriculture, a historic reliance on groundnuts (peanuts) for export earnings, a re-export trade built up around its ocean port, low import duties, minimal administrative procedures, a fluctuating exchange rate with no exchange controls, and a significant tourism industry.

Trinidad and Tobago national football team: The Trinidad and Tobago national football team, nicknamed the "Soca Warriors", represents the twin-island Republic of Trinidad and Tobago in international football.  It is controlled by the Trinidad and Tobago Football Association and competes in both CONCACAF (the Confederation of North, Central American and Caribbean Association Football) and the Caribbean Football Union, its sub-continental confederation.  The team is ranked 83rd in the world according to the FIFA World Rankings, and 91st in the World Football Elo Ratings.  They reached the first round of the 2006 FIFA World Cup and currently hold the record of being the smallest nation (both in size and population) to ever qualify for a FIFA World Cup.

Trinidad and Tobago at the 2006 FIFA World Cup: The only participation of Trinidad and Tobago in the final stages of the FIFA World Cup came in 2006, when they qualified for the tournament in Germany, but failed to win any match and were eliminated at the group stage.  Trinidad and Tobago became the smallest nation to reach the finals of a World Cup tournament, a feat previously held by Jamaica at the 1998 World Cup.

Folarin Ogunsola: Folarin L. Ogunsola (born 23 June 1997) is a Gambian swimmer.  He competed in the 50 m freestyle and 50 m backstroke events (the latter of which he did not start) at the 2011 World Aquatics Championships and in the 50 m freestyle and 50 m butterfly events at the 2013 World Aquatics Championships.

Supporting paragraphs: Folarin Ogunsola The Gambia
Answer: Gambian