CREATE TABLE table_42224 ("Former kingdom" CLOB, "Province" CLOB, "Hangul" CLOB, "Hanja" CLOB, "Capital" CLOB, "Modern equivalent" CLOB)

What is the Hanja for the sakju province?
SELECT "Hanja" FROM table_42224 WHERE "Province" = 'sakju'
SELECT "Hanja" FROM "table_42224" WHERE "Province" = 'sakju'