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The main event during this season were the 2007 World Athletics Championships in Osaka , Japan , where the final of the men 's competition was held on August 27 , 2007 .
 Osaka , Japan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Osaka , Japan