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It is connected in the western suburbs of the city to the Ankara River , which is a tributary of the Sakarya River .
 location: Ankara River; location: Sakarya 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: Ankara River, Sakarya River 
Answer:
 location: Ankara River; location: Sakarya River