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Though never Duke of Saxony himself , while Otto ( who was the enthroned Duke of Saxony ) was in Italy from 961 until 972 , Hermann served as Otto 's personal representative in governing Saxony .
 Saxony, Otto, Saxony, Hermann, Otto, Saxony
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Saxony, Otto, Saxony, Hermann, Otto, Saxony