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Dmitry Gennadyevich Medvedev ( ; 1970 – 15 April 2005 ) was a Lieutenant-Colonel in the Federal Security Service of the Russian Federation who was killed in action in Chechnya .
 person: Dmitry Gennadyevich Medvedev; organization: Federal Security Service; location: Russian Federation; location: Chechnya
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: Dmitry Gennadyevich Medvedev, Federal Security Service, Russian Federation, Chechnya 
Answer:
 person: Dmitry Gennadyevich Medvedev; organization: Federal Security Service; location: Russian Federation; location: Chechnya