CREATE TABLE table_15843 ("State/territory" CLOB, "Text/background colour" CLOB, "Format" CLOB, "Current slogan" CLOB, "Current series" CLOB, "Notes" CLOB)

What is the format for South Australia?
SELECT "Format" FROM table_15843 WHERE "State/territory" = 'South Australia'
SELECT "Format" FROM "table_15843" WHERE "State/territory" = 'South Australia'