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United Nations Security Council resolution 866 , adopted unanimously on 22 September 1993 , after reaffirming resolutions 813 ( 1993 ) and 856 ( 1993 ) , the Council noted that United Nations involvement would contribute significantly to the effective implementation of the Peace Agreement in Liberia and went on to establish the United Nations Observer Mission in Liberia ( UNOMIL ) .
 Liberia, Liberia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Liberia, Liberia