      xmlns:target="http://www.example.org#"
      xmlns:test="http://www.example.org/lower#"
      xmlns:TEST="http://www.example.org/upper#"
      xmlns:TeSt="http://www.example.org/mixed#"
  <head>
    <title>Test 0123</title>
  </head>
  <body>
        <div about="[target:sub]">
                <p rel="test:one" resource="[target:lower]">lower case</p>
                <p rel="TEST:two" resource="[target:UPPER]">UPPER CASE</p>
                <p rel="TeSt:three" resource="[target:MiXeD]">Mixed Case</p>
        </div>
  </body>
