>value</span>

   <span class="identifier">is</span> <span class="identifier">a</span> <span class="identifier">compile</span> <span class="identifier">time</span> <span class="identifier">boolean</span> <span class="identifier">constant</span> <span class="identifier">which</span> <span class="identifier">is</span> <span class="identifier">either</span> <span class="char">'true'</span> <span class="identifier">or</span> <span class="char">'false'</span>
   <span class="keyword">if</span> <span class="ident