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He is Oberbürgermeister of Heidenheim since February 1 , 2000 , re-elected on November 11 , 2007 .
 location: Heidenheim
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: Heidenheim 
Answer:
 location: Heidenheim