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Gustav Reinhold Röhricht ( November 18 , 1842 – May 2 , 1905 ) was a German historian of the crusades .
 person: Reinhold Röhricht
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: Reinhold Röhricht 
Answer:
 person: Reinhold Röhricht