CREATE TABLE table_39276 ("Year" FLOAT, "Class" CLOB, "Team" CLOB, "Points" FLOAT, "Rank" CLOB, "Wins" FLOAT)

Which class has a rank of 5th?
SELECT "Class" FROM table_39276 WHERE "Rank" = '5th'
SELECT "Class" FROM "table_39276" WHERE "Rank" = '5th'