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Tevita Tu'ifua ( born 15 October 1975 in Nomuka ) is a Tonga n rugby union Wing and Centre .
 Tevita Tu'ifua, Tonga, 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:
 Tevita Tu'ifua, Tonga, rugby union