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At the FIS Nordic World Ski Championships 2009 in Liberec , Strolia finished 21st in the team sprint , 60th in the sprint , and 73rd in the 15 km event .
 Liberec, Strolia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Liberec, Strolia