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As a judge of the Supreme Court of South Australia ( 1983 – 1988 ) , he was the only communist to serve as an Australian judge .
 None
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:  
Answer:
 None