--- a/rdf-spaces/index.html	Thu May 10 16:20:04 2012 -0400
+++ b/rdf-spaces/index.html	Thu May 10 16:31:01 2012 -0400
@@ -33,7 +33,7 @@
 //          previousMaturity:  "REC",
 
           // if there a publicly available Editor's Draft, this is the link
-//@@@
+//
           edDraftURI:           "http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-spaces/index.html",
 
           // if this is a LCWD, uncomment and set the end of its review period
@@ -93,7 +93,7 @@
           doRDFa: true,
       };
 
-// @@@ A number of references have been patched into the local berjon.biblio and need to be added to the global biblio in CVS:
+//  A number of references have been patched into the local berjon.biblio and need to be added to the global biblio in CVS:
     </script>
 
     
@@ -490,6 +490,12 @@
     <p>Datasets and quadsets can thus be used interchangeably, with
     the more appropriate one being use in any particular context.</p>
 
+    <p class="note">This is not quite true, in that a dataset can
+    contain the empty graph, which has no exact correspondence to
+    anything in a quadset.  In practice, in SPARQL, implementations
+    are free to use quadset semantics.  @@@ How can we formalize that
+    here?</p>
+
   </section>
 
 </section>
@@ -654,7 +660,7 @@
     except:</p>
     <ol>
 
-      <li>The result is a dataset, not an RDF Graph</li>
+      <li>The result is a <a>dataset</a>, not an RDF Graph</li>
 
       <li>The triples generated during parsing of the <code
       class="prod production">naming</code> production go into a