Name the Winning driver of mercedes on 22 august?
CREATE TABLE table_name_91 (
    winning_driver VARCHAR,
    winning_constructor VARCHAR,
    date VARCHAR
)
SELECT winning_driver FROM table_name_91 WHERE winning_constructor = "mercedes" AND date = "22 august"
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: Name the Winning driver of mercedes on 22 august? ### Input: CREATE TABLE table_name_91 (
    winning_driver VARCHAR,
    winning_constructor VARCHAR,
    date VARCHAR
) ### Response: SELECT winning_driver FROM table_name_91 WHERE winning_constructor = "mercedes" AND date = "22 august"