--- a/rdf-concepts/index.html	Mon Apr 30 19:43:41 2012 -0700
+++ b/rdf-concepts/index.html	Tue May 01 15:49:49 2012 +0100
@@ -375,6 +375,16 @@
     a new blank node to give <var>G'</var>. A definition of graph equivalence
     is needed to support the RDF Test Cases [[RDF-TESTCASES]] specification.</p>
 
+    <p class="issue">
+    This definition of “graph equivalence” only coincides with the
+    [[RDF-MT]] definition of
+    “<a href="http://www.w3.org/TR/2004/REC-rdf-mt-20040210/#glossEquivalent">equivalent</a>”
+    under
+    <a href="http://www.w3.org/TR/2004/REC-rdf-mt-20040210/#entail">simple entailment</a>.
+    A possible solution would be to rename “graph equivalence” to
+    “graph isomorphism”. This is
+    <a href="https://www.w3.org/2011/rdf-wg/track/issues/86">ISSUE-86</a>.</p>
+
 
 <section id="section-triples">
     <h3>Triples</h3>