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During World War I , he was appointed by Woodrow Wilson to the U.S. Department of Labor 's board of mediators and Commission of Conciliation , and also served on the U.S. Commission of Industrial Relations .
 Woodrow Wilson, Labor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Woodrow Wilson, Labor