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When he broadcast on Welsh BBC , early in his career , he was introduced using this pronunciation .
 organization: Welsh; organization: BBC
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: Welsh, BBC 
Answer:
 organization: Welsh; organization: BBC