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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>
    <exturlusage>
      <eu pageid="17461" ns="8" title="MediaWiki:Common.js" url="http://www.mediawiki.org/wiki/Manual:Collapsible_tables" />
    </exturlusage>
  </query>
</api>