what is the number of original airdate written by allan hawco?
CREATE TABLE table_27547668_4 (original_airdate VARCHAR, written_by VARCHAR)
SELECT COUNT(original_airdate) FROM table_27547668_4 WHERE written_by = "Allan Hawco"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_27547668_4 (original_airdate VARCHAR, written_by VARCHAR) Question: what is the number of original airdate written by allan hawco? [/INST] SELECT COUNT(original_airdate) FROM table_27547668_4 WHERE written_by = "Allan Hawco" </s>