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The Brussels-Capital Region is one of the three federated regions of Belgium , alongside the Walloon Region and the Flemish Region .
 Brussels-Capital Region, Belgium, Walloon Region, Flemish Region
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Brussels-Capital Region, Belgium, Walloon Region, Flemish Region