--- a/model/working-copy/towards-wd4.html	Fri Feb 10 08:44:37 2012 +0000
+++ b/model/working-copy/towards-wd4.html	Fri Feb 10 08:48:23 2012 +0000
@@ -1288,6 +1288,9 @@
 <div class='issue'> Emphasize the notion of 'affected by'   <a href="http://www.w3.org/2011/prov/track/issues/133">ISSUE-133</a>.</div>
 
 
+<div class='issue'> Is imprecise-1 derivation necessary? Can we just use precise-1 and imprecise-n?   <a href="http://www.w3.org/2011/prov/track/issues/249">ISSUE-249</a>.</div>
+
+
 </section>