CREATE TABLE table_65888 ("Year" FLOAT, "Class" TEXT, "Team" TEXT, "Machine" TEXT, "Points" FLOAT, "Wins" FLOAT)

What class before 1990 has points of 33?
SELECT "Class" FROM table_65888 WHERE "Year" < '1990' AND "Points" = '33'
SELECT "Class" FROM "table_65888" WHERE "Points" = '33' AND "Year" < '1990'