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ILEI is a special interest group affiliated with both UNESCO and the World Esperanto Association ( Universala Esperanto-Asocio , UEA ) .
 UNESCO, World Esperanto Association
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 UNESCO, World Esperanto Association