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_20967430_4 (ep VARCHAR, prod_code VARCHAR)
### Question:
How many episodes had a production code of 5m13?
### Answer:
SELECT COUNT(ep) FROM table_20967430_4 WHERE prod_code = "5M13"