What episode number was written by Gregg Hurwitz?
CREATE TABLE table_24938621_3 (no VARCHAR, written_by VARCHAR)
SELECT no FROM table_24938621_3 WHERE written_by = "Gregg Hurwitz"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_24938621_3 (no VARCHAR, written_by VARCHAR) Question: What episode number was written by Gregg Hurwitz? [/INST] SELECT no FROM table_24938621_3 WHERE written_by = "Gregg Hurwitz" </s>