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The 21st century revival of the programme became the centrepiece of BBC One 's Saturday schedule and " defined the channel " .
 organization: BBC One
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: BBC One 
Answer:
 organization: BBC One