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Two years later , Miluska qualified for two swimming events at the 2004 Summer Olympics in Athens , by clearing a FINA B-standard entry time of 2:02.65 ( 200 m freestyle ) from the World Championships in Barcelona , Spain .
 Athens, Barcelona , Spain
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Athens, Barcelona , Spain