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EXAMPLE 1:
      
      <!-- this is a identifier-namespace example -->
      <root xmlns:h="http://www.w3.org/TR/html4/">

      <h:table>
        <h:tr>
          <h:td>Apples</h:td>
          <h:td>Bananas</h:td>
        </h:tr>
      </h:table>

      </root>
      
    
EXAMPLE 2:
      
      <!-- this is a generic example -->
      <bookstore>
        <book category="children">
          <title>Harry Potter</title>
          <author>J K. Rowling</author>
          <year>2005</year>
          <price>29.99</price>
        </book>
        <book category="web">
          <title>Learning XML</title>
          <author>Erik T. Ray</author>
          <year>2003</year>
          <price>39.95</price>
        </book>
      </bookstore>