>
<tr>
<td>
                <p>
                  <code class="computeroutput"><span class="special">!</span><span class="identifier">b</span></code>
                </p>
              </td>
<td>
                <p>
                  <code class="computeroutput"><span class="identifier">a</span><span class="special">:</span>
                  <span class="identifier">A</span> <span class="special">--&gt;</span>
                  <span class="special">!</span><span class="identifier">a</span><span class="spe