Create an XML file with markup tags and some sample data to represent a list of invoices. Include the XML tags for two invoices in the list. Also, assume the invoices are created from a database whose tables are shown in the following database relationship diagram.
That is, the invoice header information is stored in the table invoice. The invoice table is linked to lines, which hold the many line items of the invoice.  Each line item is linked to a product containing information on the particular product, which in turn is linked to the suppliers table where information on the supplier of the product can be found.