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>
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      <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>Medium</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>Spezial</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>Diskussion</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>Benutzer</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>Benutzer Diskussion</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>FuemoWiki</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>FuemoWiki Diskussion</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>Datei</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>Datei Diskussion</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>MediaWiki Diskussion</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>Vorlage</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>Vorlage Diskussion</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>Hilfe</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>Hilfe Diskussion</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>Kategorie Diskussion</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Category talk</string>
                  </var>
                </struct>
              </var>
              <var name="100">
                <struct>
                  <var name="id">
                    <number>100</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Mfr</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Mfr</string>
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="101">
                <struct>
                  <var name="id">
                    <number>101</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Mfr talk</string>
                  </var>
                  <var name="canonical">
                    <string>Mfr talk</string>
                  </var>
                </struct>
              </var>
              <var name="102">
                <struct>
                  <var name="id">
                    <number>102</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Ndb</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Ndb</string>
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="103">
                <struct>
                  <var name="id">
                    <number>103</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Ndb talk</string>
                  </var>
                  <var name="canonical">
                    <string>Ndb talk</string>
                  </var>
                </struct>
              </var>
              <var name="104">
                <struct>
                  <var name="id">
                    <number>104</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Obb</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Obb</string>
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="105">
                <struct>
                  <var name="id">
                    <number>105</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Obb talk</string>
                  </var>
                  <var name="canonical">
                    <string>Obb talk</string>
                  </var>
                </struct>
              </var>
              <var name="106">
                <struct>
                  <var name="id">
                    <number>106</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Ofr</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Ofr</string>
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="107">
                <struct>
                  <var name="id">
                    <number>107</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Ofr talk</string>
                  </var>
                  <var name="canonical">
                    <string>Ofr talk</string>
                  </var>
                </struct>
              </var>
              <var name="108">
                <struct>
                  <var name="id">
                    <number>108</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Opf</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Opf</string>
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="109">
                <struct>
                  <var name="id">
                    <number>109</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Opf talk</string>
                  </var>
                  <var name="canonical">
                    <string>Opf talk</string>
                  </var>
                </struct>
              </var>
              <var name="110">
                <struct>
                  <var name="id">
                    <number>110</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Swa</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Swa</string>
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="111">
                <struct>
                  <var name="id">
                    <number>111</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Swa talk</string>
                  </var>
                  <var name="canonical">
                    <string>Swa talk</string>
                  </var>
                </struct>
              </var>
              <var name="112">
                <struct>
                  <var name="id">
                    <number>112</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Ufr</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Ufr</string>
                  </var>
                  <var name="content">
                    <string />
                  </var>
                </struct>
              </var>
              <var name="113">
                <struct>
                  <var name="id">
                    <number>113</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Ufr talk</string>
                  </var>
                  <var name="canonical">
                    <string>Ufr talk</string>
                  </var>
                </struct>
              </var>
              <var name="114">
                <struct>
                  <var name="id">
                    <number>114</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Bln</string>
                  </var>
                  <var name="subpages">
                    <string />
                  </var>
                  <var name="canonical">
                    <string>Bln</string>
                  </var>
                  <var name="content">
                    <string />
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                </struct>
              </var>
              <var name="115">
                <struct>
                  <var name="id">
                    <number>115</number>
                  </var>
                  <var name="case">
                    <string>first-letter</string>
                  </var>
                  <var name="*">
                    <string>Bln talk</string>
                  </var>
                  <var name="canonical">
                    <string>Bln talk</string>
                  </var>
                </struct>
              </var>
            </struct>
          </var>
        </struct>
      </var>
    </struct>
 </data>
</wddxPacket>