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Ngawa County ( , ) , or Aba or Ngaba , is a county of Sichuan Province , China .
 Ngawa, Sichuan Province, China
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ngawa, Sichuan Province, China