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Nanxi District ( ) is a district of the city of Yibin , Sichuan province , People 's Republic of China .
 Nanxi, Yibin, Sichuan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nanxi, Yibin, Sichuan