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HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
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<?xml version="1.0"?>
<api>
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      <page pageid="17" ns="0" title="Как правильно опубликовать отчет о походе" contentmodel="wikitext" pagelanguage="ru" touched="2016-12-16T07:02:45Z" lastrevid="13541" counter="7171" length="7723" />
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      <page pageid="21" ns="0" title="Короленко Леонид" contentmodel="wikitext" pagelanguage="ru" touched="2019-07-03T06:41:02Z" lastrevid="15937" counter="13498" length="1936" />
      <page pageid="32" ns="0" title="Щербаков Антон" contentmodel="wikitext" pagelanguage="ru" touched="2019-08-18T07:11:25Z" lastrevid="16117" counter="42086" length="6191" />
      <page pageid="38" ns="0" title="Новости 2009" contentmodel="wikitext" pagelanguage="ru" touched="2015-07-25T17:03:32Z" lastrevid="4328" counter="21553" length="34112" />
      <page pageid="39" ns="0" title="Туристский клуб НГУ" contentmodel="wikitext" pagelanguage="ru" touched="2019-10-10T08:29:36Z" lastrevid="15960" counter="532598" length="7578" />
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</api>