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Various ethnic groups lived side by side ( this ethnic heterogeneity is preserved until today in certain parts of Vojvodina , Bačka and Banat ) .
 Vojvodina, Bačka, Banat
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vojvodina, Bačka, Banat