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Besides his tenure at SUNY-Binghamton , he has served as Writer in Residence at the University of Wisconsin , Madison , and conducted summer sessions as a professor at Wheaton College , Chicago , and the C.S. Lewis Seminars at Cambridge ; he has also conducted seminars and workshops in fourteen states of the U.S. , all of the Canadian provinces but British Columbia , and in England , Lithuania , and the Scandinavias .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
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