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Dietrich Müller-Doblies ( born 1938 ) is a German systematic botanist .
 person: Dietrich Müller-Doblies
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: Dietrich Müller-Doblies 
Answer:
 person: Dietrich Müller-Doblies