<svg xmlns="http://www.w3.org/Graphics/SVG/svg-19990412.dtd" width="4in" height="3in">

  <defs>

    <private xmlns:myapp="http://mycompany/mapapp">

      <myapp:piechart title="Sales by Region">

        <myapp:piece label="Northern Region" value="1.23"/>

        <myapp:piece label="Eastern Region" value="2.53"/>

        <myapp:piece label="Southern Region" value="3.89"/>

        <myapp:piece label="Western Region" value="2.04"/>

      </myapp:piechart>

    </private>

  </defs>

  <desc>This chart includes private data in another namespace

  </desc>

       draw the pie chart -->

</svg>