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_228973_3 (title VARCHAR, no_in_series VARCHAR)
### Question:
what is the name of the episode whose number of the series episode was 31?
### Answer:
SELECT title FROM table_228973_3 WHERE no_in_series = 31