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_21313498_1 (written_by VARCHAR, no_in_season VARCHAR)
### Question:
in the number of episode in season is 11, who was the writer?
### Answer:
SELECT written_by FROM table_21313498_1 WHERE no_in_season = 11