pan class="identifier">b</span></code>.
      </p>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
          There is no difference operator in <span class="emphasis"><em>Spirit.Karma</em></span>, as
          the concept does not make sense in the context of output generation.
        </p></td></tr>
</table></div>
<div cla