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Persistent socioeconomic inequality and civil unrest culminated in the devastating Salvadoran Civil War from 1979 to 1992 , fought between the military-led government and a coalition of left-wing guerrilla groups .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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