What date did Episode 22 originally air?
CREATE TABLE table_23392257_4 (original_airdate VARCHAR, _number VARCHAR)
SELECT COUNT(original_airdate) FROM table_23392257_4 WHERE _number = 22
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23392257_4 (original_airdate VARCHAR, _number VARCHAR) Question: What date did Episode 22 originally air? [/INST] SELECT COUNT(original_airdate) FROM table_23392257_4 WHERE _number = 22 </s>