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Optus provided competition with its entrance to the market in 2003 along with significant service upgrades in 2004 followed by optical fiber cable in mid-2009 .
 organization: Optus
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: Optus 
Answer:
 organization: Optus