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He initially worked as a journalist for the Geelong Advertiser from 1976 until 1981 , when he went into radio comedy .
 organization: Geelong Advertiser
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: Geelong Advertiser 
Answer:
 organization: Geelong Advertiser