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_86 (date VARCHAR, region VARCHAR, catalog VARCHAR)
  ### Question:
  On what date did the United Kingdom have a catalog of FT 507?
  ### Answer:
  SELECT date FROM table_name_86 WHERE region = "united kingdom" AND catalog = "ft 507"