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On November 25 , 2008 , the Board of Directors for Amtrak announced they had appointed Boardman to a one-year term as President and CEO of the railway to replace outgoing president Alexander Kummant .
 Amtrak, Boardman, Alexander Kummant
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Amtrak, Boardman, Alexander Kummant