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Óscar Vales Varela ( born 13 September 1974 in Bilbao , Biscay ) is a Spanish retired footballer who played as a utility defender , and sometimes as a defensive midfielder .
 Óscar Vales, Bilbao, Biscay, Spanish
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
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Answer:
 Óscar Vales, Bilbao, Biscay, Spanish