Analyze the map below and answer the question that follows.
A map of rivers in Russia. Three rivers are labeled 1, 2, and 3. River 1 is in Eastern Russia and ends at the Caspian Sea. River 2 is in Central Russia. River 3 is in Eastern Russia and extends from the Laptev Sea to Lake Baikal.
Map by e2020
The river labeled with the number 2 on the map above is the __________ River.