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Although informally renamed in Douglas ' lifetime ( it was given the appellation " Mount " in order to honour the governor 's status ) , the name " Mt. Douglas " was not officially adopted until 1910 .
 person: Douglas; person: Douglas
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: Douglas, Douglas 
Answer:
 person: Douglas; person: Douglas