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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="Facebook Developer Wiki" touched="2015-10-22T16:54:37Z" lastrevid="1241" counter="3124655" length="2694" />
    </pages>
  </query>
</api>