6544
The eastern border lies along the edge of the Congo-Nile watershed .
 location: Congo-Nile
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Congo-Nile 
Answer:
 location: Congo-Nile