Question: What continent is the country that encompasses Kotu located?

full_context: Document 1: Kolonga: Kolonga is a village and the most populated settlement located on the northeast coast of Tongatapu in the Hahake District, Kingdom of Tonga. Kolonga is a hereditary estate of Hon. Lord Nuku.
Document 2: Pacific War: The official policy of the U.S. Government is that Thailand was not an ally of the Axis, and that the United States was not at war with Thailand. The policy of the U.S. Government ever since 1945 has been to treat Thailand not as a former enemy, but rather as a country which had been forced into certain actions by Japanese blackmail, before being occupied by Japanese troops. Thailand has been treated by the United States in the same way as such other Axis-occupied countries as Belgium, Czechoslovakia, Denmark, Greece, Norway, Poland, and the Netherlands.
Document 3: Tonga: Tonga's foreign policy has been described by Matangi Tonga as "Look East"—specifically, as establishing closer diplomatic and economic relations with Asia (which actually lies to the north-west of the Pacific kingdom). Tonga retains cordial relations with the United States. Although it remains on good terms with the United Kingdom, the two countries do not maintain particularly close relations, and the United Kingdom closed its High Commission in Tonga in 2006. Tonga's relations with Oceania's regional powers, Australia and New Zealand, are good.
Document 4: Holonga (Tongatapu): Holonga is a small village in the eastern (Hahake) district of Tongatapu in the kingdom of Tonga. It lies between the villages of Malapo and Alakifonua.
Document 5: Tokū, Tonga: Tokū is an uninhabited, volcanic island in Tonga. It is located in the very north of Vavaʻu group in the north of the country. It is about long and up to wide, yielding an area of . It is up to above sea level near its east coast.
Document 6: Oceania: Biogeographically, as a synonym for the Australasian ecozone and the Pacific ecozone (Melanesia, Polynesia, and Micronesia), with New Zealand forming the south - western corner of the Polynesian Triangle. To note, New Zealand may also be considered part of Australasia, despite being traditionally part of Polynesia. As an ecozone, Oceania includes all of Micronesia, Fiji, and all of Polynesia except New Zealand. New Zealand, along with New Guinea and nearby islands, part of the Philippine islands, Australia, the Solomon Islands, Vanuatu, and New Caledonia, constitute the separate Australasian ecozone. In the geopolitical conception used by the United Nations, International Olympic Committee, and many atlases, Oceania includes Australia and the nations of the Pacific from Papua New Guinea east, but not Indonesian New Guinea.
Document 7: Near East: The Foreign and Commonwealth Office of United Kingdom recognises a Middle East and North Africa region, but not a Near East. Their original Middle East consumed the Near East as far as the Red Sea, ceded India to the Asia and Oceania region, and went into partnership with North Africa as far as the Atlantic.
Document 8: Assistant Secretary of State for East Asian and Pacific Affairs: The Assistant Secretary of State for East Asian and Pacific Affairs is the head of the Bureau of East Asian and Pacific Affairs within the United States Department of State. The Assistant Secretary guides operation of the U.S. diplomatic establishment in the countries of the Asia - Pacific region and advises the Secretary of State and the Under Secretary for Political Affairs on matters relating to the area. The last permanent Assistant Secretary was Daniel R. Russel, who left on March 8, 2017. Susan Thornton is now Acting Assistant Secretary.
Document 9: Malapo: Malapo is a small village in the eastern district of Tongatapu in the kingdom of Tonga. It is located in the fork of the road junction, where the main road to Nukualofa splits into the road to Mua and beyond and the road to the airport near Fuaamotu. It is near to the neighbouring village of Holonga.
Document 10: Royal Palace, Tonga: The Royal Palace of the Kingdom of Tonga is located in the northwest of the capital, Nukualofa, close to the Pacific Ocean. The wooden Palace, which was built in 1867, is the official residence of the King of Tonga. Although the Palace is not open to the public, it is easily visible from the waterfront.
Document 11: Luahoko: Luahoko is an island in Tonga. It is located within the Ha'apai Group in the centre of the country, to northeast of the national capital of Nukualofa.
Document 12: Kiribati: Kiribati maintains close relations with its Pacific neighbours, Australia, New Zealand, Republic of China (Taiwan), Japan and Fiji. The first three of these provide the majority of the country's foreign aid. Taiwan and Japan also have specified-period licences to fish in Kiribati's waters. There are four resident diplomatic missions headquartered in Kiribati: the Embassies of the Republic of China (Taiwan) and Cuba and the High Commissions of Australia and New Zealand.
Document 13: Kotu Island: Kotu is an island in Lulunga district, in the Ha'apai islands of Tonga. As of 1992, there was one village on the island with a population of approximately 200 people.
Document 14: Hule fortress: Hule Fortress was a stronghold in Nukunuku, Tongatapu, Country of Tonga, during 1826. Nukunuku is a village of Noble Tu'ivakano(Uhi) and his community and it is located in Tongatapu (main island of Tonga) in the west side of the peninsula.(Hihifo)
Document 15: Niulakita: Niulakita is the southernmost island of Tuvalu, and also the name of the only village on this island. Niulakita has a population of 27 (2012 census). The residents of Niulakita have moved to the island from Niutao. Niulakita is represented in the Parliament of Tuvalu by the members of the constituency of Niutao.
ground_truth: Oceania
sub_queries: Kotu >> country Answer: Tonga
On what continent can Tonga be found? Answer: Oceania