1913
*November 8 – Countdown '' on the Australian Broadcasting Corporation ( 1974–87 )
 organization: Countdown; organization: Australian Broadcasting Corporation
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: Countdown, Australian Broadcasting Corporation 
Answer:
 organization: Countdown; organization: Australian Broadcasting Corporation