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Kiril Nikolov Stanchev ( ) ( 14 December 1895 , Kyustendil - 11 April 1968 , Sofia ) was a Bulgarian general , commander of the Bulgarian Second Army during World War II .
 Kyustendil, Sofia, Bulgarian, Bulgarian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kyustendil, Sofia, Bulgarian, Bulgarian