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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="4818" ns="0" title="Meaning of life" touched="2010-05-06T15:15:10Z" lastrevid="15126" counter="300" length="3258" new="" />
    </pages>
  </query>
</api>