CREATE TABLE table_21645 ("Team" CLOB, "Head coach" CLOB, "Team captain" CLOB, "Venue" CLOB, "Capacity" FLOAT, "Kitmaker" CLOB, "Shirt sponsor" CLOB, "Club Chairman" CLOB)

Which venue does Mardan sponsor?
SELECT "Venue" FROM table_21645 WHERE "Shirt sponsor" = 'Mardan'
SELECT "Venue" FROM "table_21645" WHERE "Shirt sponsor" = 'Mardan'