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_34 (commenced_operations VARCHAR, icao VARCHAR)
  ### Question:
  Who is the commenced operations that has icao of slk?
  ### Answer:
  SELECT commenced_operations FROM table_name_34 WHERE icao = "slk"