user: Please answer the following question: Information:  - A continent is one of several very large landmasses on Earth. Generally identified by convention rather than any strict criteria, up to seven regions are commonly regarded as continents. Ordered from largest in size to smallest, they are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. In geology, areas of continental crust include regions covered with water.  - Papua New Guinea (PNG  Hiri Motu: "Papua Niu Gini"), officially the Independent State of Papua New Guinea, is an Oceanian country that occupies the eastern half of the island of New Guinea and its offshore islands in Melanesia, a region of the southwestern Pacific Ocean north of Australia. Its capital, located along its southeastern coast, is Port Moresby. The western half of New Guinea forms the Indonesian provinces of Papua and West Papua.  - The Northern Solomons were the more northerly group of islands in the Solomon Islands archipelago over which Germany declared a protectorate in 1885. Initially the German Solomon Islands Protectorate included Choiseul, Santa Isabel, the Shortlands and Ontong Java Islands, but in 1900 these islands were transferred to the British Solomon Islands Protectorate. The largest of the Solomon Islands, Bougainville, continued under German administration until World War I when it fell to Australia, and after the war, it formally passed to Australian jurisdiction under a League of Nations mandate.  Today, the original North Solomon Islands are split between the Autonomous Region of Bougainville in Papua New Guinea and the successor state of the British Solomon Islands which was officially renamed from "the British Solomon Islands Protectorate" to "Solomon Islands" in 1975 prior to becoming an independent, sovereign state in 1976.  - Vanuatu (or ; Bislama ), officially the Republic of Vanuatu (Bislama: "Ripablik blong Vanuatu"), is a Pacific island nation located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is some east of northern Australia, northeast of New Caledonia, east of New Guinea, southeast of the Solomon Islands, and west of Fiji.  - The Philippines, officially the Republic of the Philippines, is a sovereign island country in Southeast Asia situated in the western Pacific Ocean. It consists of about 7,641 islands that are categorized broadly under three main geographical divisions from north to south: Luzon, Visayas, and Mindanao. The capital city of the Philippines is Manila and the most populous city is Quezon City, both part of Metro Manila. Bounded by the South China Sea on the west, the Philippine Sea on the east and the Celebes Sea on the southwest, the Philippines shares maritime borders with Taiwan to the north, Vietnam to the west, Palau to the east and Malaysia and Indonesia to the south.  - Guadalcanal (indigenous name: "Isatabu") is the principal island in Guadalcanal Province of the nation of Solomon Islands in the south-western Pacific, northeast of Australia. Its European discovery was under the Spanish expedition of Álvaro de Mendaña in 1568. The name comes from Guadalcanal, a village in the province of Seville, in Andalusia, Spain, birthplace of Pedro de Ortega Valencia, a member of Mendaña's expedition.  - An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. A grouping of geographically or geologically related islands is called an archipelago, e.g. the Philippines.  - Kolombangara ( sometimes spelled Kulambangara ) is an island in the New Georgia Islands group of the Solomon Islands in the southwestern Pacific Ocean . The name is from a local language , a rough translation of its meaning is `` Water Lord '' with approximately 80 rivers and streams running down its flanks .  - Melanesia is a subregion of Oceania (and occasionally Australasia) extending from the western end of the Pacific Ocean to the Arafura Sea, and eastward to Fiji.  - Solomon Islands is a sovereign country consisting of six major islands and over 900 smaller islands in Oceania lying to the east of Papua New Guinea and northwest of Vanuatu and covering a land area of . The country's capital, Honiara, is located on the island of Guadalcanal. The country takes its name from the Solomon Islands archipelago, which is a collection of Melanesian islands that also includes the North Solomon Islands (part of Papua New Guinea), but excludes outlying islands, such as Rennell and Bellona, and the Santa Cruz Islands.    After reading the paragraphs above, choose the best answer for the entity that related to 'kolombangara' with the relationship of 'continent'.  Choices: - africa  - antarctica  - asia  - australia  - oceania
Answer:

assistant: oceania