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Bradley James Tippett ( born 11 February 1988 in Mona Vale , New South Wales ) is an Australian minor league baseball player .
 Bradley, Tippett, baseball
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bradley, Tippett, baseball