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Ulia Ulia ( born 13 June 1980 in Afega ) is a Samoa n rugby union flanker .
 Ulia Ulia, Afega, Samoa, rugby union
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ulia Ulia, Afega, Samoa, rugby union