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HTML is good for debugging, but is unsuitable for application use.
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To see the non HTML representation of the XML format, set format=xml.
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<?xml version="1.0"?>
    <allpages gapcontinue="Odyssey_Elementary_School" />
      <page pageid="557" ns="0" title="Language arts">
        <flagged stable_revid="1916" level="0" level_text="stable" />
      <page pageid="478" ns="0" title="Link Crew">
        <flagged stable_revid="1298" level="0" level_text="stable" />
      <page pageid="647" ns="0" title="Main Page" />
      <page pageid="554" ns="0" title="Mathematics">
        <flagged stable_revid="1909" level="0" level_text="stable" />
      <page pageid="725" ns="0" title="Matt Meister">
        <flagged stable_revid="2582" level="0" level_text="stable" />
      <page pageid="79" ns="0" title="Meridian Ranch International Elementary School">
        <flagged stable_revid="1891" level="1" level_text="quality" />
      <page pageid="504" ns="0" title="Middle school">
        <flagged stable_revid="1443" level="0" level_text="stable" />
      <page pageid="40" ns="0" title="Module:Arguments" />
      <page pageid="511" ns="0" title="National Honor Society">
        <flagged stable_revid="1560" level="0" level_text="stable" />
      <page pageid="512" ns="0" title="National Junior Honor Society">
        <flagged stable_revid="1561" level="0" level_text="stable" />