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None of the brothers wrestled under the family surname , however , as they all adopted ring name s. One of the brothers explained that the brothers ' real names were too hard to pronounce , so they adopted other names that were easier for international fans .
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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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