You are looking at the HTML representation of the XML format.
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.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <alltransclusions gatcontinue="Dia_Charabox|1642" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1325" ns="0" title="Dia Rai" />
      <page pageid="1333" ns="0" title="Robert C. Kliyy, III" />
      <page pageid="1443" ns="0" title="Rai&#039;m Abrillynn Tymisonn" />
      <page pageid="1536" ns="0" title="Pink" />
      <page pageid="1629" ns="0" title="Aerin Nicole Marra" />
      <page pageid="1630" ns="0" title="Migi Kuro" />
      <page pageid="1631" ns="0" title="Sizreina Yuo Baseton" />
      <page pageid="1634" ns="0" title="Jared Kerlyn L&#039;Mahreen" />
      <page pageid="1637" ns="0" title="Alicia Faye Rune" />
      <page pageid="1641" ns="0" title="Brandon Colby Flint Ralhi" />
    </pages>
  </query>
</api>