 <a href="#tg-grammar-production-sparqlBase">sparqlBase</a></td>
    </tr>
    <tr id="tg-grammar-production-prefixID">
      <td>[4]</td>
      <td><code>prefixID</code></td>
      <td>::=</td>
      <td>&quot;@prefix&quot; <a href="#tg-grammar-production-PNAME_NS">PNAME_NS</a> <a href="#tg-grammar-production-IRIREF">IRIREF</a> "<code class="grammar-literal">.</code>"<code>?</code> </td>
    </tr>
    <tr id="tg-grammar-production-base">
      <td>[5]</td>
      <td><code>base</code></td>
      <td>::=</td