51669
United Nations Security Council resolution 777 , adopted unanimously on 19 September 1992 , after reaffirming Resolution 713 ( 1992 ) and all subsequent resolutions on the topic , the Council considered that , as the state known as the Socialist Federal Republic of Yugoslavia ( SFRY ) ceased to exist , it noted that under Resolution 757 ( 1992 ) , the claim by the Federal Republic of Yugoslavia ( Serbia and Montenegro ) to continue automatic membership in the United Nations was not widely accepted and so determined that membership of the SFRY in the United Nations can not continue .
 Nations, Socialist Federal Republic of Yugoslavia, Federal Republic of Yugoslavia, Serbia, Montenegro, Nations, Nations
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nations, Socialist Federal Republic of Yugoslavia, Federal Republic of Yugoslavia, Serbia, Montenegro, Nations, Nations