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_17467578_1 (written_by VARCHAR, episode__number VARCHAR)
### Question:
Who wrote episode 11?
### Answer:
SELECT written_by FROM table_17467578_1 WHERE episode__number = 11