You are looking at the HTML representation of the WDDX 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 WDDX format, set format=wddx.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
<wddxPacket version="1.0">
 <header/>
 <data>
    <struct>
      <var name="query">
        <struct>
          <var name="namespaces">
            <struct>
              <var name="-2">
                <struct>
                  <var name="id">
                    <number>-2</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Média</string>
                  </var>
                  <var name="canonical">
                    <string>Media</string>
                  </var>
                </struct>
              </var>
              <var name="-1">
                <struct>
                  <var name="id">
                    <number>-1</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Speciální</string>
                  </var>
                  <var name="canonical">
                    <string>Special</string>
                  </var>
                </struct>
              </var>
              <var name="0">
                <struct>
                  <var name="id">
                    <number>0</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string />
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="1">
                <struct>
                  <var name="id">
                    <number>1</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Talk</string>
                  </var>
                </struct>
              </var>
              <var name="2">
                <struct>
                  <var name="id">
                    <number>2</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Uživatel</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>User</string>
                  </var>
                </struct>
              </var>
              <var name="3">
                <struct>
                  <var name="id">
                    <number>3</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse s uživatelem</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>User talk</string>
                  </var>
                </struct>
              </var>
              <var name="4">
                <struct>
                  <var name="id">
                    <number>4</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Bomosil</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Project</string>
                  </var>
                </struct>
              </var>
              <var name="5">
                <struct>
                  <var name="id">
                    <number>5</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse k Bomosil</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Project talk</string>
                  </var>
                </struct>
              </var>
              <var name="6">
                <struct>
                  <var name="id">
                    <number>6</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Soubor</string>
                  </var>
                  <var name="canonical">
                    <string>File</string>
                  </var>
                </struct>
              </var>
              <var name="7">
                <struct>
                  <var name="id">
                    <number>7</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse k souboru</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>File talk</string>
                  </var>
                </struct>
              </var>
              <var name="8">
                <struct>
                  <var name="id">
                    <number>8</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>MediaWiki</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>MediaWiki</string>
                  </var>
                </struct>
              </var>
              <var name="9">
                <struct>
                  <var name="id">
                    <number>9</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse k MediaWiki</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>MediaWiki talk</string>
                  </var>
                </struct>
              </var>
              <var name="10">
                <struct>
                  <var name="id">
                    <number>10</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Šablona</string>
                  </var>
                  <var name="canonical">
                    <string>Template</string>
                  </var>
                </struct>
              </var>
              <var name="11">
                <struct>
                  <var name="id">
                    <number>11</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse k šabloně</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Template talk</string>
                  </var>
                </struct>
              </var>
              <var name="12">
                <struct>
                  <var name="id">
                    <number>12</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Nápověda</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Help</string>
                  </var>
                </struct>
              </var>
              <var name="13">
                <struct>
                  <var name="id">
                    <number>13</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse k nápovědě</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Help talk</string>
                  </var>
                </struct>
              </var>
              <var name="14">
                <struct>
                  <var name="id">
                    <number>14</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Kategorie</string>
                  </var>
                  <var name="canonical">
                    <string>Category</string>
                  </var>
                </struct>
              </var>
              <var name="15">
                <struct>
                  <var name="id">
                    <number>15</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Diskuse ke kategorii</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Category talk</string>
                  </var>
                </struct>
              </var>
            </struct>
          </var>
        </struct>
      </var>
    </struct>
 </data>
</wddxPacket>