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Important cities along the coast include Odessa , Sevastopol , Samsun , and Istanbul .
 Odessa, Sevastopol, Samsun, Istanbul
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Odessa, Sevastopol, Samsun, Istanbul