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He became mayor of Freiburg on 1 July 2002 , after receiving 64.4 % of votes on the second ballot held on 5 May 2002 , thereby becoming the first Green mayor of a large German city and only the second or third in the whole of Germany .
 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: Freiburg 
Answer:
 location: Freiburg