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Over the past years , He has initiated a series of studies on arts and cultural policies , including both the 1991 & 1993 edition of " In Search of Cultural Policy " , " In Search of Film Policy 97 " and " In Search of Information Policy 97 " .
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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} 
Answer:
 None