<entry>
          &id; [&id;|<emphasis role="bold">(</emphasis>&id;[<emphasis role="bold">,</emphasis>&term;]… <emphasis role="bold">:</emphasis>&term;<emphasis role="bold">)</emphasis>]…
        </entry>
+       <entry />
       </row>
       <row>
        <entry />
          [<emphasis role="bold">:</emphasis> &term;]
          <emphasis role="bold">≝</emphasis> &term;]
        </entry>
+       <entry />
       </row>
     </tbody>
    </tgroup>
        <entry id="grammar.match_branch">&match_branch;</entry>
        <entry>::=</entry>
        <entry>&match_pattern; <emphasis role="bold">⇒</emphasis> &term;</entry>
+       <entry />
       </row>
      <row>
       <entry id="grammar.match_pattern">&match_pattern;</entry>