Definition: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: The source of this river, that used to flow through the Makgadikgadi Plain, lies near the Kalene Hill. This river's waters create the Barotse [bah-ROT-see] floodplain, and it receives the Cuando and Shire Rivers. The Chizuma Falls can be found on this river, and two dams on it create Lake Cahora Bassa and Lake Kariba. One feature along this river, called by locals(*) "The Smoke that Thunders," was discovered by David Livingstone. For 10 points, identify this river that flows through Angola, Zimbabwe, and Mozambique, and contains Victoria Falls.
Output:
Social Science