Input (grade 12): The river has two large dams along its course, the Manantali Dam in Mali, and the Maka-Diama dam on the Mauritania-Senegal border, near the outlet to the sea.
Output (grade 11): The river has two large dams: the Manantali Dam in Mali, and the Maka-Diama Dam on the Mauritania-Senegal border, near the sea.