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 Visitors (Tourist_ID VARCHAR); CREATE TABLE Visits (Tourist_ID VARCHAR)
  ### Question:
  How many tourists did not make any visit?
  ### Answer:
  SELECT COUNT(*) FROM Visitors WHERE NOT Tourist_ID IN (SELECT Tourist_ID FROM Visits)