<article>
  <front>
    <article-meta>
      <title-group>
        <article-title>!</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>!</surname>
          </name>
        </contrib>
      </contrib-group>
      <abstract>
        <p>!</p>
      </abstract>
    </article-meta>
  </front>
  <article-body>
    <p>!</p>
  </article-body>
</article>
