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There is a headquarters in Niamey , and liaison offices in Bamako ( in Mali ) and Nouakchott ( in Mauritania ) .
 Niamey, Bamako, Mali, Nouakchott, Mauritania
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Niamey, Bamako, Mali, Nouakchott, Mauritania