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It is set during the First World War with the British Expeditionary Force in Flanders .
 organization: British Expeditionary Force; location: Flanders
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: British Expeditionary Force, Flanders 
Answer:
 organization: British Expeditionary Force; location: Flanders