32700
The territory of modern Central African Republic is known to have been settled from at least the 7th century on by overlapping empires , including the Kanem-Bornu , Ouaddai , Baguirmi , and Dafour groups based on the Lake Chad region and along the Upper Nile .
 location: Central African Republic; location: Kanem-Bornu; location: Ouaddai; location: Baguirmi; location: Dafour; location: Lake Chad; location: Upper; location: 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: Central African Republic, Kanem-Bornu, Ouaddai, Baguirmi, Dafour, Lake Chad, Upper, Nile 
Answer:
 location: Central African Republic; location: Kanem-Bornu; location: Ouaddai; location: Baguirmi; location: Dafour; location: Lake Chad; location: Upper; location: Nile