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_18333678_2 (operator VARCHAR, arrival VARCHAR)
  ### Question:
  what is the operator of trains arriving at 13.39 
  ### Answer:
  SELECT operator FROM table_18333678_2 WHERE arrival = "13.39"