How many items appear in the written by column in episode 3?
CREATE TABLE table_27155243_4 (written_by VARCHAR, episode__number VARCHAR)
SELECT COUNT(written_by) FROM table_27155243_4 WHERE episode__number = 3
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_27155243_4 (written_by VARCHAR, episode__number VARCHAR) Question: How many items appear in the written by column in episode 3? [/INST] SELECT COUNT(written_by) FROM table_27155243_4 WHERE episode__number = 3 </s>