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In Round 4 , 2002 he made his AFL umpiring debut at the Sydney Cricket Ground in a match between the Sydney Swans and the Kangaroos .
 Sydney, Sydney Swans, Kangaroos
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sydney, Sydney Swans, Kangaroos