What is the title of the episode/s written by Michael Gans & Richard Register?
CREATE TABLE table_23399481_4 (title VARCHAR, written_by VARCHAR)
SELECT title FROM table_23399481_4 WHERE written_by = "Michael Gans & Richard Register"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23399481_4 (title VARCHAR, written_by VARCHAR) Question: What is the title of the episode/s written by Michael Gans & Richard Register? [/INST] SELECT title FROM table_23399481_4 WHERE written_by = "Michael Gans & Richard Register" </s>