<?xml version='1.0' encoding='UTF-8'?>
<!-- This is an XML sample -->
<library xmlns='http://library' xmlns:foo='http://foo.com'>
  <book foo:id="k123">
    <author>Isaac Newton</author>
    <title>Philosophiae Naturalis Principia Mathematica</title>
    <genre>Science</genre>
    <price>40.95</price>
    <publish_date>1947-9-03</publish_date>
  </book>
  <book foo:id="k456">
    <author>Dr. Seuss</author>
    <title>Green Eggs and Ham</title>
    <genre>Kid</genre>
    <foo:kids/>
    <price>4.95</price>
    <publish_date>1960-8-12</publish_date>
  </book>
</library>