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_Mailed (mailing_date VARCHAR, document_id VARCHAR)
### Question:
What is the mail date of the document with id 7?
### Answer:
SELECT mailing_date FROM Documents_Mailed WHERE document_id = 7