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Those frescoes were painted over the earlier layer by a team of unknown artists , who also decorated the two floors of the building commissioned by Sebastocrator Kaloyan .
 person: Sebastocrator Kaloyan
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Sebastocrator Kaloyan