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Enterprise Oil was a major British independent exploration and production company based in Europe , with core areas of activity in Britain and Ireland , mainland Europe , Brazil and the Gulf of Mexico .
 Enterprise Oil, British, Europe, Britain, Europe, Brazil
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Enterprise Oil, British, Europe, Britain, Europe, Brazil