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American Enterprise Institute In 2002 , Hess became a resident scholar and the founding director of the education policy studies program at the American Enterprise Institute ( AEI ) , a nonpartisan public policy think tank in Washington , DC .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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