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The mine was opened on 24 May 2006 by the then Governor-General of Australia , Michael Jeffery , after a 12 year planning phase .
 person: Michael Jeffery
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Michael Jeffery