Who won when the presenter was Tatiana Stefanidou?
CREATE TABLE table_15001 (
    "Series" text,
    "TV Channel" text,
    "Launch Date" text,
    "Finale Date" text,
    "Days" real,
    "The Winner" text,
    "The Prize" text,
    "The Presenter" text
)
SELECT "The Winner" FROM table_15001 WHERE "The Presenter" = 'tatiana stefanidou'
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 won when the presenter was Tatiana Stefanidou? ### Input: CREATE TABLE table_15001 (
    "Series" text,
    "TV Channel" text,
    "Launch Date" text,
    "Finale Date" text,
    "Days" real,
    "The Winner" text,
    "The Prize" text,
    "The Presenter" text
) ### Response: SELECT "The Winner" FROM table_15001 WHERE "The Presenter" = 'tatiana stefanidou'