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_32 (letter VARCHAR, operator VARCHAR)
  ### Question:
  Which letter has an operator of the Defense Information Systems Agency?
  ### Answer:
  SELECT letter FROM table_name_32 WHERE operator = "defense information systems agency"