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Gerhard Schröder ( March 3 , 1921 – January 23 , 2012 ) was a German radio and television executive .
 person: Gerhard Schröder
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 Schröder 
Answer:
 person: Gerhard Schröder