209029
A year and a half later , the students had their first successful appearance at the Festival of Dalmatian vocal groups in Omis , competing as the youngest male vocal group contestant in the history of that , the most important festival of klapa ’s singing .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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