<appendix>
   <title>Global Constants</title> 
     <para>
    <table>
    <title>Misc. &AL; Global Constants</title>
    <tgroup cols="4" align="left" colsep=1 rowsep=1>
    <colspec colname=c1>
    <colspec colname=c2>
    <thead>
    <row>
       <entry>Name            </>
       <entry>&OAL; datatype  </>
       <entry>Description     </>        
       <entry>Literal value   </>  
    </row>
    </thead>
    <tbody>
    <row>
        <entry> ALenum                               </entry>
        <entry> FALSE                                </entry>
        <entry> boolean false                        </entry>
        <entry> 0                                    </entry>
    </row>
    <row>
        <entry> ALenum                               </entry>
        <entry> TRUE                                 </entry>
        <entry> boolean true                         </entry>
        <entry> 1                                    </entry>
    </row>
    </tbody>
    </tgroup>
    </table>
    </para>


    <![ %RFC [
      <note id="bk000621-01"><title>RFC</title><para>  
        NONE, ONE, ZERO needed?
      </para></note>
    ]]>
    </appendix>