12279
It is situated on the Senegal River at the head of the river zone allowing year-round navigation .
 location: Senegal River
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: Senegal River 
Answer:
 location: Senegal River