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In 2008 , Katie Spotz became the first person to swim the entire of the Allegheny River ; she was accompanied by safety kayaker , James Hendershott .
 Katie Spotz, Allegheny River, James Hendershott
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Katie Spotz, Allegheny River, James Hendershott