314381
United Nations Security Council resolution 888 , adopted unanimously on 30 November 1993 , after recalling resolutions 637 ( 1989 ) , 693 ( 1991 ) , 714 ( 1991 ) , 729 ( 1992 ) , 784 ( 1992 ) , 791 ( 1992 ) and 832 ( 1993 ) , the Council expressed concern at aspects of the situation in El Salvador and extended the mandate of the United Nations Observer Mission in El Salvador ( ONUSAL ) until 31 May 1994 .
 El Salvador, El Salvador
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 El Salvador, El Salvador