CREATE TABLE table_20517 ("RR Romaja" TEXT, "M\\u2013R Romaja" TEXT, "Hangul/Chosongul" TEXT, "Hanja" TEXT, "ISO" TEXT, "Area" TEXT, "Capital" TEXT, "Region" TEXT, "Country" TEXT)

Name the country for 11,891 area
SELECT "Country" FROM table_20517 WHERE "Area" = '11,891'
SELECT "Country" FROM "table_20517" WHERE "Area" = '11,891'