CREATE TABLE table_56704 ("Region" CLOB, "Date" CLOB, "Label" CLOB, "Format" CLOB, "Catalog #" CLOB)

What is the catalog number of the album whose region is the United Kingdom?
SELECT "Catalog #" FROM table_56704 WHERE "Region" = 'united kingdom'
SELECT "Catalog #" FROM "table_56704" WHERE "Region" = 'united kingdom'