What class before 1990 has points of 33?
CREATE TABLE table_65888 (
    "Year" real,
    "Class" text,
    "Team" text,
    "Machine" text,
    "Points" real,
    "Wins" real
)
SELECT "Class" FROM table_65888 WHERE "Year" < '1990' AND "Points" = '33'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What class before 1990 has points of 33? ### Input: CREATE TABLE table_65888 (
    "Year" real,
    "Class" text,
    "Team" text,
    "Machine" text,
    "Points" real,
    "Wins" real
) ### Response: SELECT "Class" FROM table_65888 WHERE "Year" < '1990' AND "Points" = '33'