--- a/semantics/prov-sem.html	Fri Apr 12 13:57:00 2013 +0100
+++ b/semantics/prov-sem.html	Fri Apr 12 17:42:13 2013 +0100
@@ -4415,10 +4415,9 @@
       Nies, Paolo
       Missier, Simon Miles, Luc Moreau, Satya Sahoo, Jan van den
       Bussche, and Joachim Van
-      Herwegen for detailed feedback.  Significant progress was made on this document at 
-      <a href="http://www.dagstuhl.de/12091">Dagstuhl Seminar 12901 (Principles of Provenance)</a>, and so we
-      would also like to acknowledge participants in that event and
-      the staff of <a href="http://www.dagstuhl.de">Schloss Dagstuhl - Leibniz Center for Informatics</a>.
+      Herwegen for detailed feedback.</p>
+<p>
+We would also like to acknowledge <a href="http://www.dagstuhl.de">Schloss Dagstuhl - Leibniz Center for Informatics</a>, because significant progress was made on this document at  <a href="http://www.dagstuhl.de/12091">Dagstuhl Seminar 12091 (Principles of Provenance)</a> that took place from February 26 to March 2, 2012.
       </p>
 
 <p>Thanks also to Robin Berjon for the ReSPec.js specification writing