who was the main presenter before barbara d'urso ?
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 "main presenter" FROM table_203_397 WHERE "launch date" < (SELECT "launch date" FROM table_203_397 WHERE "main presenter" = "barbara d'urso") ORDER BY "launch date" DESC LIMIT 1
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: who was the main presenter before barbara d'urso ? ### 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 "main presenter" FROM table_203_397 WHERE "launch date" < (SELECT "launch date" FROM table_203_397 WHERE "main presenter" = "barbara d'urso") ORDER BY "launch date" DESC LIMIT 1