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The Adelaide Sevens , is played annually as part of the IRB Sevens World Series for international rugby sevens ( seven-a-side version of rugby union ) .
 location: Adelaide
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: Adelaide 
Answer:
 location: Adelaide