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>
    <allpages apcontinue="Benzene" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="476" ns="0" title="BLAB - The Big Lazy A/B" />
      <p pageid="474" ns="0" title="BLAB - The Big Leisurely A/B" />
      <p pageid="1200" ns="0" title="BLAB - The Big Leisurely AB" />
      <p pageid="5352" ns="0" title="BW&#039;s Bufotenine Dry Tek" />
      <p pageid="5354" ns="0" title="BW Bufotenine Dry Tek" />
      <p pageid="1179" ns="0" title="Banisteriopsis caapi" />
      <p pageid="5672" ns="0" title="Be Taught To Do Voice Over Like An ExpertWhy Voice Over Is A Tactic Not A Strategy" />
      <p pageid="5733" ns="0" title="Being A Star In Your Industry Is A Matter Of German Voice Over Services" />
      <p pageid="5717" ns="0" title="Being A Star In Your Trade Is A Matter Of English Voice Over" />
      <p pageid="5770" ns="0" title="Believing Any Of Those 10 Myths About Usaa Medicare Supplemental Insurance Keeps You From Rising" />
    </allpages>
  </query>
</api>