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>
    <search>
      <p ns="0" title="Gene Transfer Format" snippet="Note that unescaped spaces are allowed within fields, &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; that parsers must split on tabs, not spaces.&#10;" size="6224" wordcount="940" timestamp="2013-05-17T09:39:15Z" />
      <p ns="0" title="General Feature Format" snippet="Note that unescaped spaces are allowed within fields, &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; that parsers must split on tabs, not spaces.&#10;" size="4985" wordcount="792" timestamp="2013-05-17T09:40:10Z" />
      <p ns="0" title="Wiggle format" snippet="...some, start coordinate, and step size. The span specification has the same &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; as in variableStep format. For example, this fixedStep specification:&#10;" size="7073" wordcount="875" timestamp="2013-05-17T09:40:34Z" />
      <p ns="0" title="Correlation Analysis" snippet="...that, despite their names, both experiment and control data sets has equal &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt;, since correlation is a symmetric function.&#10;" size="2428" wordcount="338" timestamp="2013-05-31T04:15:34Z" />
      <p ns="0" title="Virtual biology" snippet="To define precise &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; of virtual biology we have developed these top level ontology using MediaWi&#10;" size="2808" wordcount="362" timestamp="2014-09-21T16:07:16Z" />
      <p ns="0" title="Glycan structures" snippet="The terms glycan and polysaccharide are defined by IUPAC as synonyms &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; &amp;quot;compounds consisting of a large number of monosaccharides linked glycosidi&#10;" size="3097" wordcount="437" timestamp="2014-10-13T05:48:12Z" />
    </search>
  </query>
</api>