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Alkis Thrylos ( Greek : Άλκης Θρύλος , born Eleni Ourani ( Ελένης Ουράνη ) in 1896 – December 8 , 1971 ) was a Greek writer .
 Eleni Ourani, Greek
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Eleni Ourani, Greek