<?xml version="1.0"?>
<docs>
  <doc2>
    <a level="2">
      <b level="3">3-B2</b>
      <c level="3">3-C3</c>
      <d level="3">Hello
        <e level="4">Success</e>
        <!-- Me, too -->
      </d>
    </a>
  </doc2>
</docs>