which two winners of grande fratello won the most money ?
CREATE TABLE table_203_397 (
    id number,
    "series" text,
    "launch date" text,
    "finale date" text,
    "days" number,
    "housemates" number,
    "winner" text,
    "main presenter" text,
    "grand prize" text,
    "liveshow\naudience\nmillions" number
)
SELECT "winner" FROM table_203_397 WHERE "grand prize" = (SELECT MAX("grand prize") FROM table_203_397)
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: which two winners of grande fratello won the most money ? ### Input: CREATE TABLE table_203_397 (
    id number,
    "series" text,
    "launch date" text,
    "finale date" text,
    "days" number,
    "housemates" number,
    "winner" text,
    "main presenter" text,
    "grand prize" text,
    "liveshow\naudience\nmillions" number
) ### Response: SELECT "winner" FROM table_203_397 WHERE "grand prize" = (SELECT MAX("grand prize") FROM table_203_397)