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Johan Martin Ferner ( born 22 July 1927 , Asker , né Johan Martin Jacobsen ) is a Norwegian sailor and Olympic medalist .
 Johan, Ferner, Asker, Johan, Norwegian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Johan, Ferner, Asker, Johan, Norwegian