如何制作一个简单的 Witnesses.adj 相邻点列表必ず HTML 形式で出力し、.Do NOT USE <p> or <div> tags.  racks.
user
<ul>
  <li>Witness A
    <ul>
      <li>Witness B</li>
      <li>Witness C</li>
    </ul>
  </li>
  <li>Witness B
    <ul>
      <li>Witness A</li>
      <li>Witness C</li>
      <li>Witness D</li>
    </ul>
  </li>
  <li>Witness C
    <ul>
      <li>Witness A</li>
      <li>Witness B</li>
    </ul>
  </li>
  <li> Witness D
    <ul>
      <li>Witness B</li>
    </ul>
  </li>
</ul>
assistant