CREATE TABLE table_80018 ("Sport" TEXT, "League" TEXT, "Tier" TEXT, "Club" TEXT, "Stadium" TEXT)

Which stadium is for football with the China League One?
SELECT "Stadium" FROM table_80018 WHERE "Sport" = 'football' AND "League" = 'china league one'
SELECT "Stadium" FROM "table_80018" WHERE "League" = 'china league one' AND "Sport" = 'football'