CREATE TABLE table_70573 ("Riding" TEXT, "Candidate's Name" TEXT, "Gender" TEXT, "Residence" TEXT, "Occupation" TEXT, "Votes" FLOAT, "Rank" TEXT)

What is the Riding, when the Rank is 4th?
SELECT "Riding" FROM table_70573 WHERE "Rank" = '4th'
SELECT "Riding" FROM "table_70573" WHERE "Rank" = '4th'