Who directed the episode with a production code of 301?
CREATE TABLE table_18424435_4 (directed_by VARCHAR, production_code VARCHAR)
SELECT directed_by FROM table_18424435_4 WHERE production_code = 301
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18424435_4 (directed_by VARCHAR, production_code VARCHAR) Question: Who directed the episode with a production code of 301? [/INST] SELECT directed_by FROM table_18424435_4 WHERE production_code = 301 </s>