--- a/model/prov-constraints.html	Thu Jul 19 10:48:11 2012 +0100
+++ b/model/prov-constraints.html	Thu Jul 19 10:48:47 2012 +0100
@@ -1660,7 +1660,7 @@
   the following key constraints:
   </p>
   <div class='constraint' id='entity-activity-disjoint'>
-    <p>It is not the case that <span  class="name">entity(id,attrs1)</span>
+    <p>It is not the case that <span  class="name">entity(id,attrs1)</span> and
 <span  class="name">activity(id,_t1,_t2,attrs2)</span>.
 </p>   </div>