CREATE TABLE table_24891 ("English short name  ( upper/lower case ) " TEXT, "Alpha-2 code" TEXT, "Alpha-3 code" TEXT, "Numeric code" FLOAT, "ISO 3166-2 codes" TEXT)

What is the ISO for South Sudan?
SELECT "ISO 3166-2 codes" FROM table_24891 WHERE "English short name (upper/lower case)" = 'South Sudan'
SELECT "ISO 3166-2 codes" FROM "table_24891" WHERE "English short name (upper/lower case)" = 'South Sudan'