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Biography Christoph Johan von Medem was born in the Mežotne manor , Semigallia in 13 August 1763 .
 person: von Medem; location: Mežotne
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: von Medem, Mežotne 
Answer:
 person: von Medem; location: Mežotne