Instructions: 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 widest point in this body is between the villages of Onguryon and Ust-Barguzin. A settlement at Bolshiye Koty is located on its shores, and it is located in the federal subject of Irkutsk Olbast. It is fed by over 300 rivers, including the Uda, Barguzin, and Selenga, and contains 22 islands including Olkhon, the largest. Its only outlet is the Angara River, which drains into the Yenisei, and this body's namesake mountains are the source of the Lena River. FTP, name this body that contains nearly 20% of earth's liquid freshwater, the deepest freshwater lake on Earth, located in Siberia.
Output:
Social Science