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_16 (date VARCHAR, format VARCHAR, country VARCHAR)
### Question:
what is the date when the format is cd (limited edition steel-box) from united kingdom?
### Answer:
SELECT date FROM table_name_16 WHERE format = "cd (limited edition steel-box)" AND country = "united kingdom"