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The Batswana , a term also used to denote all citizens of Botswana , refers to the country 's major ethnic group ( called the Tswana in Southern Africa ) .
 Botswana, Southern Africa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Botswana, Southern Africa