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With Demetrios Vikelas , he co-founded the Society for the Dissemination of Beneficial Books ( in Greek , Σ .
 person: Demetrios Vikelas
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: Demetrios Vikelas 
Answer:
 person: Demetrios Vikelas