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His first official match for Levski was against Lokomotiv Sofia on 6 March 2011 , with Iliev succeeding in keeping a clean sheet .
 Levski, Lokomotiv Sofia, Iliev
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Levski, Lokomotiv Sofia, Iliev