<?xml version="1.0" encoding="utf-8"?>
<?xml-model href="rfc7991bis.rnc"?>

<!DOCTYPE rfc [
  <!ENTITY nbsp    "&#160;">
  <!ENTITY zwsp   "&#8203;">
  <!ENTITY nbhy   "&#8209;">
  <!ENTITY wj     "&#8288;">
]>

<rfc>
  <front>
    <title></title>
    <author></author>
   </front>

  <middle>
    <section>
    </section>
  </middle>

  <back>
 </back>
</rfc>