You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
Please see "format" parameter documentation at the API help for more information. 
<?xml version="1.0" encoding="utf-8"?>
<api>
  <query-continue>
    <allpages apfrom="Second set of Questions" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="27" ns="0" title="Caitlin Taylor" />
      <p pageid="13" ns="0" title="First set of Questions" />
      <p pageid="31" ns="0" title="Fourth set of Questions" />
      <p pageid="12" ns="0" title="Home" />
      <p pageid="32" ns="0" title="John Moore" />
      <p pageid="1" ns="0" title="Main Page" />
      <p pageid="28" ns="0" title="Merritt Island Drop" />
      <p pageid="29" ns="0" title="Pasadena Drop" />
      <p pageid="25" ns="0" title="Questions from 13@13lights.org" />
      <p pageid="34" ns="0" title="Samuel Black" />
    </allpages>
  </query>
</api>