Update Relationship to RDF according Peter P. Schneider's request
See http://lists.w3.org/Archives/Public/public-rdf-wg/2013Jul/0142.html
--- a/spec/latest/json-ld/index.html Tue Jul 09 23:07:58 2013 +0200
+++ b/spec/latest/json-ld/index.html Wed Jul 10 17:09:37 2013 +0200
@@ -3169,8 +3169,9 @@
<tref href="http://www.w3.org/TR/rdf11-concepts/#dfn-concrete-rdf-syntax">concrete RDF syntax</tref>
as described in [[RDF11-CONCEPTS]]. Hence, a JSON-LD document is an
RDF document and a JSON document and correspondingly represents an
- instance of an extended RDF data model. The extensions to the RDF
- data model are:</p>
+ instance of an extended RDF data model, namely
+ <tref href="http://www.w3.org/TR/rdf11-concepts/#fn-generalized-rdf-dataset">generalized RDF Datasets</tref>.
+ The extensions to the RDF data model are:</p>
<ul>
<li>In JSON-LD <tref title="property">properties</tref> can be