@graph must be a subject definition or array of zero or more subjet definitions (for #135).
--- a/spec/latest/json-ld-syntax/index.html Sun Jun 24 18:19:40 2012 -0700
+++ b/spec/latest/json-ld-syntax/index.html Sun Jun 24 18:25:13 2012 -0700
@@ -2354,7 +2354,9 @@
</ol>
</li>
<li>A <tref>subject definition</tref> MAY have an <code>@graph</code> property.</li>
-<li>The value of a <code>@graph</code> property MUST be null, an <tref>IRI</tref>, or a <tref>subject definition</tref>.</li>
+<li>The value of a <code>@graph</code> property MUST be a
+ <tref>subject definition</tref> or an array of zero or more
+ <tref title="subject definition">subject definitions</tref>.</li>
<li>A <tref>JSON object</tref> containing a <code>@set</code> key MUST NOT have any other keys.</li>
<li>A <tref>JSON object</tref> containing a <code>@list</code> key MUST NOT have any other keys.</li>
<li>The value of an <code>@set</code> or <code>@list</code> key can be a string, a number, a <tref>JSON object</tref>, or an <tref>array</tref> containing a combination of the allowed values.</li>