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He made his competitive debut for Loko Mezdra in Bulgarian top division on 9 August 2008 against Spartak Varna in the first round of the season 2008/09 .
 Mezdra, Bulgarian top division, Spartak Varna
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mezdra, Bulgarian top division, Spartak Varna