How many weeks have pittsburgh steelers as the opponent?
CREATE TABLE table_name_89 (
    week VARCHAR,
    opponent VARCHAR
)
SELECT COUNT(week) FROM table_name_89 WHERE opponent = "pittsburgh steelers"
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: How many weeks have pittsburgh steelers as the opponent? ### Input: CREATE TABLE table_name_89 (
    week VARCHAR,
    opponent VARCHAR
) ### Response: SELECT COUNT(week) FROM table_name_89 WHERE opponent = "pittsburgh steelers"