<!DOCTYPE shelf SYSTEM "inventory-1.dtd">
<shelf xmlns="http://www.example.com/xmlns/inventory">
    <item>
        <desc>
	  this is a description.
	</desc>
        <sku>
	  this is the price.
        </sku>
        <price>
	  this is the price.
	</price>
    </item>
</shelf>
