Who directed the episode aired on February 27, 2009?
CREATE TABLE table_18424435_3 (directed_by VARCHAR, us_air_date VARCHAR)
SELECT directed_by FROM table_18424435_3 WHERE us_air_date = "February 27, 2009"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18424435_3 (directed_by VARCHAR, us_air_date VARCHAR) Question: Who directed the episode aired on February 27, 2009? [/INST] SELECT directed_by FROM table_18424435_3 WHERE us_air_date = "February 27, 2009" </s>