<prolog>
The <prolog> element contains information about the topic as an
         whole (for example, author information or subject category) that is either entered
         by the author
         or maintained by a software application. Much of the metadata inside the
         <prolog> will not be displayed with the topic when the topic is
         rendered, but it might be used by processes that generate search
         indexes or customize navigation.
      
      Content models
See appendix for information about this element in OASIS document type shells.
Inheritance
- topic/prolog
Example
<prolog>
  <metadata>
    <audience type="user" job="using" experiencelevel="novice"/>
  </metadata>
</prolog>Attributes
The following attributes are available on this element: Universal attribute group.