'.' will 
not work as an infix operator, so&nbsp; '^' could be used as before:<br>
           
  <ul>
       <li>y/n-q: ?dest_city(paris)</li>
       <li>wh-q: ?X^dest_city(X)&nbsp;</li>
       <li>alt-q: ?set([?dest_city(paris),?dest_city(london)])<br>
   </li>
           
  </ul>
 </blockquote>
   <b>* Use Blackburn&amp;Bos-ish semantic representation - [<a
 name="SL_030915-1"></a>SL 030915-1] </b><br>
     
<blockquote>Use a representation more like that in Blackburn &amp; Bos book 
 on computational sem