Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_15984957_2 (oilers_first_downs VARCHAR, date VARCHAR)
### Question:
On Sept. 17, how many first downs did the oilers have?
### Answer:
SELECT COUNT(oilers_first_downs) FROM table_15984957_2 WHERE date = "Sept. 17"