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Sionidis also participated in the Battle of Skra-di-Legen during World War I , and worked as a secret agent of Third Army Corps behind enemy lines , in the area of Strumica .
 person: Sionidis; organization: Third Army Corps; location: Strumica
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: Sionidis, Third Army Corps, Strumica 
Answer:
 person: Sionidis; organization: Third Army Corps; location: Strumica