What is the date that the winner driver is Stirling Moss in the race named vi grand prix de caen?
CREATE TABLE table_name_91 (
    date VARCHAR,
    winning_driver VARCHAR,
    race_name VARCHAR
)
SELECT date FROM table_name_91 WHERE winning_driver = "stirling moss" AND race_name = "vi grand prix de caen"
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 is the date that the winner driver is Stirling Moss in the race named vi grand prix de caen? ### Input: CREATE TABLE table_name_91 (
    date VARCHAR,
    winning_driver VARCHAR,
    race_name VARCHAR
) ### Response: SELECT date FROM table_name_91 WHERE winning_driver = "stirling moss" AND race_name = "vi grand prix de caen"