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_2570269_3 (episode_title VARCHAR, original_air_date__uk_ VARCHAR)
### Question:
What is the title of the episode that aired on 13 august 1981?
### Answer:
SELECT episode_title FROM table_2570269_3 WHERE original_air_date__uk_ = "13 August 1981"