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The work on black troops has provided new insight into the rhythms of plantation talk and culture , said John Simon , professor of history at Southern Illinois University at Carbondale and editor of Gen .
 John Simon, Southern Illinois University at Carbondale
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 John Simon, Southern Illinois University at Carbondale