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In December 2012 , they announced their inaugural class of 19 inductees at a press conference in North Las Vegas at former professional boxing referee Richard Steele 's boxing gym .
 North Las Vegas, Richard Steele
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 North Las Vegas, Richard Steele