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Following Sierra 's buyout by Havas Interactive and disappointing sales of its last titles , Coktel Vision is now developing only educational games that are marketed mostly in Europe .
 organization: Sierra; organization: Coktel Vision
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Sierra, Coktel Vision 
Answer:
 organization: Sierra; organization: Coktel Vision