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He is the co-founder of BET , which was acquired by Viacom in 2001 .
 organization: BET; organization: Viacom
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: BET, Viacom 
Answer:
 organization: BET; organization: Viacom