Which race had a distance of 4 miles where the runner-up was not known?
CREATE TABLE table_name_22 (
    race_name VARCHAR,
    dist__miles_ VARCHAR,
    runner_up VARCHAR
)
SELECT race_name FROM table_name_22 WHERE dist__miles_ = "4" AND runner_up = "not known"
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: Which race had a distance of 4 miles where the runner-up was not known? ### Input: CREATE TABLE table_name_22 (
    race_name VARCHAR,
    dist__miles_ VARCHAR,
    runner_up VARCHAR
) ### Response: SELECT race_name FROM table_name_22 WHERE dist__miles_ = "4" AND runner_up = "not known"