in the number of episode in season is 11, who was the writer?
CREATE TABLE table_21313498_1 (written_by VARCHAR, no_in_season VARCHAR)
SELECT written_by FROM table_21313498_1 WHERE no_in_season = 11
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: 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? [/INST] SELECT written_by FROM table_21313498_1 WHERE no_in_season = 11 </s>