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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>
    <pages>
      <page pageid="1" ns="0" title="Main Page" touched="2012-01-06T05:20:13Z" lastrevid="64" counter="76066" length="451">
        <protection />
      </page>
    </pages>
  </query>
</api>