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_25691838_11 (production_code VARCHAR, original_airdate VARCHAR)
### Question:
How many production codes were there for the episode that aired on November 15?
### Answer:
SELECT COUNT(production_code) FROM table_25691838_11 WHERE original_airdate = "November 15"