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While ' A ' and ' B ' Companies were made up of recruits from South Australia , ' C ' and 'D ' Companies were formed in Perth , Western Australia , and underwent training at the Blackboy Hill Training Camp before joining the rest of the battalion .
 South Australia, Perth , Western Australia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 South Australia, Perth , Western Australia