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Gerhard Ritter was the only Freiburg faculty member to attend the funeral , as an anti-Nazi protest .
 person: Gerhard Ritter; location: Freiburg
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: Gerhard Ritter, Freiburg 
Answer:
 person: Gerhard Ritter; location: Freiburg