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 Documents (template_id VARCHAR); CREATE TABLE Templates (template_id VARCHAR)
  ### Question:
  Show ids for all templates not used by any document.
  ### Answer:
  SELECT template_id FROM Templates EXCEPT SELECT template_id FROM Documents