Show me the receipt_date of document with id 4?
select receipt_date from documents where document_id = 4;
What's its mailing date?
select documents_mailed.mailing_date from addresses join documents_mailed on documents_mailed.mailed_to_address_id = addresses.address_id where document_id = 4;
What address did it mail to?
select addresses.address_details from addresses join documents_mailed on documents_mailed.mailed_to_address_id = addresses.address_id where document_id = 4;