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_15637071_1 (headquarters VARCHAR, icao VARCHAR)
  ### Question:
  Where is the headquarters of the airline which has the ICAO code of AAU?
  ### Answer:
  SELECT headquarters FROM table_15637071_1 WHERE icao = "AAU"