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 * MISSISSIPPI RIVER
 * AMAZON RIVER
 * NILE RIVER
 * YANGTSE RIVER
 * INDUS RIVER
 * CONGO RIVER
 * MEKONG RIVER
 * PARANA RIVER
 * MISSOURI RIVER
 * NIGER RIVER
 * YUKON RIVER
 * GANGES RIVER
 * RHINE RIVER
 * DANUBE RIVER
 * VOLGA RIVER
 * RIO GRANDE RIVER
 * OB RIVER
 * HUANG (HWANG) RIVER
 * EUPHRATES & TIGRIS RIVERS
 * MACKENZIE RIVER
 * MURRAY/DARLING RIVERS
 * AMUR RIVER