/td>
      <td><code>PN_CHARS</code></td>
      <td>::=</td>
      <td><a href="#tg-grammar-production-PN_CHARS_U">PN_CHARS_U</a> <code>|</code> "<code class="grammar-literal">-</code>" <code>|</code> <code>[</code> <code class="grammar-literal">0-9</code><code>]</code>  <code>|</code> <code class="grammar-char-escape"><abbr title="extended ascii '#xB7'">#xB7</abbr></code> <code>|</code> <code>[</code> <code class="grammar-char-escape"><abbr title="unicode 'Graphic'">#x0300</abbr></code><code class="grammar