Who was the winner on 15 December 1957?
CREATE TABLE table_name_6 (winner VARCHAR, date VARCHAR)
SELECT winner FROM table_name_6 WHERE date = "15 december 1957"
### Context: CREATE TABLE table_name_6 (winner VARCHAR, date VARCHAR) ### Question: Who was the winner on 15 December 1957? ### Answer: SELECT winner FROM table_name_6 WHERE date = "15 december 1957"