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Vĩnh Lợi is a rural district ( huyện ) of Bac Lieu Province in the Mekong Delta region of Vietnam .
 Vĩnh, Bac Lieu Province
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vĩnh, Bac Lieu Province