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A bomb exploded on Friday at a mosque in the central Bulgarian town of Kazanluk , causing damage but no injuries , state radio said .
 else: Bulgarian; location: Kazanluk
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 else: Bulgarian; location: Kazanluk