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Royal Air Force Station Derna was an RAF airfield located near Derna , Libya .
 location: Derna; organization: RAF; location: Derna , Libya
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: Derna, RAF, Derna , Libya 
Answer:
 location: Derna; organization: RAF; location: Derna , Libya