--- a/rdf-primer/index.html	Mon Feb 17 01:08:20 2014 +0100
+++ b/rdf-primer/index.html	Mon Feb 17 01:15:09 2014 +0100
@@ -980,7 +980,7 @@
       precursor to Turtle called "N3" was proposed, and gradually the other 
       syntaxes listed here have been adopted and standardizedR.
       <a href="#appendix-rdfxml">Appendix C.2</a>
-      provides an annotated RDFa example.
+      provides an annotated RDF/XML example.
       </dd>
    </dl>
 
@@ -1156,9 +1156,11 @@
     <h2>Acknowledgments</h2>
 
     <p>Antoine Isaac provided many examples, including the 
-    different syntactic forms. Pierre-Antoine Champin provided the
-    alternate JSON-LD example. Andrew Wood designed the graph
-    diagrams. We are grateful for the comments provided by (in
+    different syntactic forms. Pierre-Antoine Champin provided one of
+    the JSON-LD examples. Andrew Wood designed the 
+    diagrams. Sandro Hawke wrote the first part of the section on RDF
+    semantics. <p>
+    <p>We are grateful for the comments provided by (in
     alphabetical order) Gareth Adams, Thomas Baker, Dan Brickley, Pierre-Antoine
     Champin, Bob DuCharme, Sandro Hawke, Patrick
     Hayes, Ivan Herman, Antoine Isaac, Markus Lanthaler, and David Wood. </p>