text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_10749367_3 (_number INTEGER, air_date VARCHAR)
  ### Question:
  What episode aired on 18 April 2007?
  ### Answer:
  SELECT MIN(_number) FROM table_10749367_3 WHERE air_date = "18 April 2007"