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William Macmahon Ball , AC ( 29 August 1901 – 26 December 1986 ) was an Australia n academic and diplomat .
 person: Macmahon Ball; location: Australia
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: Macmahon Ball; location: Australia