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Socialist Prime Minister Costas Simitis announced the snap poll on Thursday citing problems with the economy , the country 's convergence with the European Union and tense relations with neighbouring Turkey .
 Costas Simitis, Turkey, European Union
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Costas Simitis, Turkey, European Union