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At the 2004 Summer Olympics in Athens , O'Keeffe qualified again for the 100 m butterfly , by receiving a Universality place from FINA , in an invitation time of 56.96 .
 location: Athens
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:
 location: Athens