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_name_2 (icao VARCHAR, commenced_operations INTEGER)
  ### Question:
  What is the ICAO with commenced operations before 1989?
  ### Answer:
  SELECT icao FROM table_name_2 WHERE commenced_operations < 1989