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Riga Pride and Friendship Days are an annual event held in Riga , Latvia in support of raising issues of tolerance and the rights of sexual minorities in society .
 Riga, Riga, Latvia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Riga, Riga, Latvia