The episode which originally aired on December 17, 2004  was written by whom?
CREATE TABLE table_228973_11 (written_by VARCHAR, original_air_date VARCHAR)
SELECT written_by FROM table_228973_11 WHERE original_air_date = "December 17, 2004"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_228973_11 (written_by VARCHAR, original_air_date VARCHAR) Question: The episode which originally aired on December 17, 2004  was written by whom? [/INST] SELECT written_by FROM table_228973_11 WHERE original_air_date = "December 17, 2004" </s>