what is the total rank where the rank is 58?
CREATE TABLE table_15681686_4 (
    rank__timeslot_ VARCHAR,
    rank__week_ VARCHAR
)
SELECT COUNT(rank__timeslot_) FROM table_15681686_4 WHERE rank__week_ = "58"
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 total rank where the rank is 58? ### Input: CREATE TABLE table_15681686_4 (
    rank__timeslot_ VARCHAR,
    rank__week_ VARCHAR
) ### Response: SELECT COUNT(rank__timeslot_) FROM table_15681686_4 WHERE rank__week_ = "58"