<?xml version="1.0" standalone="no"?> <!DOCTYPE order SYSTEM "order.dtd"> <!-- Wile E. Coytote roller skate order --> <order> <invoice-number>12345</invoice-number> <customer>Wile E. Coyote</customer> <date>1997-12-14</date> <item> <name>Jet-Propelled Roller Skates</name> <catalog-number>345-678-9</catalog-number> <quantity>2</quantity> </item> <item> <name>100,000-pound Weight</name> <catalog-number>987-654-3</catalog-number> <quantity unit="box">1</quantity> </item> </order>