Please answer the following question: Information:  - East Africa or Eastern Africa is the easterly region of the African continent, variably defined by geography or geopolitics. In the United Nations Statistics Division scheme of geographic regions, 20 territories constitute Eastern Africa:  - The East African Rift (EAR) is an active continental rift zone in East Africa. The EAR began developing around the onset of the Miocene, 2225 million years ago. In the past, it was considered to be part of a larger Great Rift Valley that extended north to Asia Minor.  - Uganda (or ), officially the Republic of Uganda, is a landlocked country in East Africa. It is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the south by Tanzania. Uganda is the world's second most populous landlocked country after Ethiopia. The southern part of the country includes a substantial portion of Lake Victoria, shared with Kenya and Tanzania. Uganda is in the African Great Lakes region. Uganda also lies within the Nile basin, and has a varied but generally a modified equatorial climate.  - Rwanda (or ), officially the Republic of Rwanda, is a sovereign state in central and east Africa and one of the smallest countries on the African mainland. Located a few degrees south of the Equator, Rwanda is bordered by Uganda, Tanzania, Burundi and the Democratic Republic of the Congo. Rwanda is in the African Great Lakes region and is highly elevated; its geography is dominated by mountains in the west and savanna to the east, with numerous lakes throughout the country. The climate is temperate to subtropical, with two rainy seasons and two dry seasons each year.  - The Equator usually refers to an imaginary line on the Earth's surface equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. The Equator is about long; some 78.7% lies across water and 21.3% over land.  - The Nile ( "en-Nl",  "an-Nl" "P(h)iaro"; Ancient Egyptian: "'p" and "Iteru"; Biblical Hebrew: , "Ha-Ye'or") is a major north-flowing river in northeastern Africa. It is generally regarded as the longest river in the world, however other conflicting sources cite a 2007 study that gave the title to the Amazon River in South America. The Nile, which is 6,853 km (4,258 miles) long, is an "international" river as its water resources are shared by eleven countries, namely, Tanzania, Uganda, Rwanda, Burundi, Congo-Kinshasa, Kenya, Ethiopia, Eritrea, South Sudan, Sudan and Egypt. In particular, the Nile is the primary water source of Egypt and Sudan.  - Lake Edward, Rutanzige or Edward Nyanza is the smallest of the African Great Lakes. It is located in the Albertine Rift, the western branch of the East African Rift, on the border between the Democratic Republic of the Congo (DRC) and Uganda, with its northern shore a few kilometres south of the equator.  - A landlocked state or landlocked country is a sovereign state entirely enclosed by land, or whose only coastlines lie on closed seas. There are currently 48 such countries, including four partially recognised states. Only two, Bolivia and Paraguay in South America, lie outside Afro-Eurasia (the Old World).  - The African Great Lakes are a series of lakes constituting the part of the Rift Valley lakes in and around the East African Rift. They include Lake Victoria, the second largest fresh water lake in the world by area, and Lake Tanganyika, the world's second largest freshwater lake by volume and depth. Collectively, they contain 31,000 km (7400 cu mi) of water, which is more than either Lake Baikal or the North American Great Lakes, and constitutes about 25% of the planet's unfrozen surface fresh water.  - The Democratic Republic of the Congo , also known as DR Congo, DRC, DROC, East Congo, Congo-Kinshasa, or simply the Congo is a country located in Central Africa. From 1971 to 1997 it was named, and is sometimes still called Zaire, and from 1908 to 1960 it was called the Belgian Congo. The DRC borders the Central African Republic, and South Sudan to the north; Uganda, Rwanda, Burundi and Tanzania to the east; Zambia and Angola to the south; the Republic of the Congo to the west and the Atlantic Ocean to the southwest. It is the second-largest country in Africa by area and eleventh largest in the world. With a population of over 80 million, the Democratic Republic of the Congo is the most populated officially Francophone country, the fourth most-populated nation in Africa and the eighteenth most populated country in the world.  - Sudan ("as-Sdn", ), also known as North Sudan and officially the Republic of the Sudan ("Jumhriyyat as-Sdn"), is a country in Northern Africa. It is bordered by Egypt to the north, the Red Sea, Eritrea, and Ethiopia to the east, South Sudan to the south, the Central African Republic to the southwest, Chad to the west and Libya to the northwest. It is the third largest country in Africa. The River Nile divides the country into eastern and western halves. Before the Sudanese Civil War, South Sudan was part of Sudan but broke away in 2011. Its predominant religion is Islam.  - Ethiopia ('), officially known as the Federal Democratic Republic of Ethiopia"' (   , "yetiyoya Fdralaw Dmokirasyaw Rpebilk" ), is a country located in the Horn of Africa. It shares borders with Eritrea to the north and northeast, Djibouti and Somalia to the east, Sudan and South Sudan to the west, and Kenya to the south. With nearly 100 million inhabitants, Ethiopia is the most populous landlocked country in the world, as well as the second-most populous nation on the African continent after Nigeria. It occupies a total area of , and its capital and largest city is Addis Ababa.  - Lake Victoria (' in Luo; ' in Luganda; "" in Kinyarwanda and some Bantu languages) is one of the African Great Lakes. The lake was named after Queen Victoria by the explorer John Hanning Speke, the first Briton to document it. Speke accomplished this in 1858, while on an expedition with Richard Francis Burton to locate the source of the Nile River.  - The Kazinga Channel in Uganda is a wide , 32 - kilometre ( 20 mi ) long natural channel that links Lake Edward and Lake George , and a dominant feature of Queen Elizabeth National Park . The channel attracts a varied range of animals and birds , with one of the world 's largest concentration of hippos and numerous Nile crocodiles . Lake George is a small lake with an average depth of only 2.4 metres ( 7.9 ft ) and which is fed by streams from the Rwenzori mountains . Its outflow is through the Kazinga Channel which drains into Lake Edward , water levels fluctuating very little . In 2005 , large numbers of hippos were killed in the channel as a result of an anthrax outbreak , which occurs when animals eat remnants of vegetation in the driest months , absorbing bacterial spores that can live for decades in dry soil .  - The Queen Elizabeth National Park (QENP) is Uganda's most visited national park.  - Kenya, officially the Republic of Kenya, is a country in Africa and a founding member of the East African Community (EAC). Its capital and largest city is Nairobi. Kenya's territory lies on the equator and overlies the East African Rift covering a diverse and expansive terrain that extends roughly from Lake Victoria to Lake Turkana (formerly called Lake Rudolf) and further south-east to the Indian Ocean. It is bordered by Tanzania to the south and southwest, Uganda to the west, South Sudan to the north-west, Ethiopia to the north and Somalia to the north-east. Kenya covers , and had a population of approximately 45 million people in July 2014.  - Tanzania , officially the United Republic of Tanzania, is a country in Eastern Africa within the African Great Lakes region. Parts of the country are in Southern Africa. It is bordered by Kenya and Uganda to the north; Rwanda, Burundi, and the Democratic Republic of the Congo to the west; Zambia, Malawi, and Mozambique to the south; and by the Indian Ocean to the east. Mount Kilimanjaro, Africa's highest mountain, is in northeastern Tanzania.  - The Albertine Rift is the western branch of the East African Rift, covering parts of Uganda, the Democratic Republic of the Congo (DRC), Rwanda, Burundi and Tanzania. It extends from the northern end of Lake Albert to the southern end of Lake Tanganyika. The geographical term includes the valley and the surrounding mountains.    Given the paragraphs above, decide what entity has the relation 'instance of' with 'river'.
A:
kazinga channel