title: Elements without namespace in XML
body: <p>This is a well-formed XML without default namespace.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;Zoo xmlns:Staff="URN:STAFF" xmlns:Animal="URN:ANIMAL"&gt;
      &lt;Staff:Security name="John" surname="Connor"/&gt;
      &lt;Animal:Dog name="Hachico"/&gt;
      &lt;Visitor name="Arnold" surname="Schwarzenegger"/&gt;
  &lt;/Zoo&gt;
  </code></pre>
  
  <ol>
  <li>In which namespace there are attribute <em>name</em> of tag Animal:Dog?</li>
  <li>In which namespace there are element <em>Visitor</em>?</li>
  </ol>