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Guy Trouveroy is a Belgian diplomat and is the current Ambassador of Belgium to Russia , presenting his credentials to Russian President Dmitry Medvedev on 12 October 2009 .
 Guy Trouveroy, Belgian, Dmitry Medvedev
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Guy Trouveroy, Belgian, Dmitry Medvedev