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Joseph Saddler ( born January 1 , 1958 in Bridgetown , Barbados ) , better known as Grandmaster Flash , is an American hip hop recording artist and DJ — one of the pioneers of hip-hop DJing , cutting , and mixing .
 Saddler, Bridgetown, Barbados, Grandmaster Flash
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Saddler, Bridgetown, Barbados, Grandmaster Flash