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The leftist Popular Revolutionary Army ( EPR ) in a published report on Sunday said it operated throughout Mexico , including the capital , and denied government assertions it was isolated to one state .
 Popular Revolutionary Army, Mexico, EPR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Popular Revolutionary Army, Mexico, EPR