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Many fab authors donating signed books and illos to support # cfa through Twitter auctions looking forward to a few bids tomorrow ! # AuthorsForFireys Great initiative by {{USERNAME}}
 Twitter, AuthorsForFireys
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 Twitter, AuthorsForFireys