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HTML is good for debugging, but probably is not suitable for your application.
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<?xml version="1.0"?>
<api>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20080606191333" timestamp="2008-06-06T19:13:33Z" ns="0" title="Main Page" />
      </results>
    </querypage>
  </query>
</api>