="number">3</span> <span class="special">+</span> <span class="number">6</span></code> is
            an actor object.
          </li>
<li class="listitem">
            As <code class="computeroutput"><span class="identifier">arg1</span> <span class="special">+</span>
            <span class="number">3</span> <span class="special">+</span> <span class="number">6</span></code> is an actor, <code class="computeroutput"><span class="special">-(</span><span class="identifier">arg1</span> <span class="special">+