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Allan A. " Al " Hackner , ( born 1954 ) nicknamed " the Iceman " , is a Canadian Hall of Fame curler from Thunder Bay , Ontario .
 Al, Hackner, Canadian, Thunder Bay, Ontario
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Al, Hackner, Canadian, Thunder Bay, Ontario