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According to some scholars such as Antoly Lieberman , the ancient Norse conceived of the Dvergar as human-sized , but the spread of Christianity led to diminishing both their mythic and religious role as well as their stature .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None