--- a/trig/trig-bnf.html	Thu Dec 12 15:00:57 2013 +0000
+++ b/trig/trig-bnf.html	Thu Dec 12 15:01:50 2013 +0000
@@ -18,11 +18,19 @@
     <td>::=</td>
     <td><a href='#grammar-production-labelOrSubject'>labelOrSubject</a> (<a href='#grammar-production-wrappedGraph'>wrappedGraph</a> <code>| </code> <a href='#grammar-production-predicateObjectList'>predicateObjectList</a> '<code class='grammar-literal'>.</code>')</td>
 </tr>
-            <tr id="grammar-production-triples2" data-grammar-original="[4g] triples2   ::=( blankNodePropertyList | collection ) predicateObjectList? &#x27;.&#x27;" data-grammar-expression="(&#x27;,&#x27;, [(&#x27;|&#x27;, [(&#x27;id&#x27;, &#x27;blankNodePropertyList&#x27;), (&#x27;id&#x27;, &#x27;collection&#x27;)]), (&#x27;?&#x27;, (&#x27;id&#x27;, &#x27;predicateObjectList&#x27;)), (&quot;&#x27;&quot;, &#x27;.&#x27;)])" >
+<tr id="grammar-production-triples2" data-grammar-original="[4g] triples2   ::= blankNodePropertyList predicateObjectList? &#x27.&#x27 | collection predicateObjectList &#x27.&#x27 " data-grammar-expression="" >
     <td>[4g]</td>
     <td><code>triples2</code></td>
     <td>::=</td>
-    <td>(<a href='#grammar-production-blankNodePropertyList'>blankNodePropertyList</a> <code>| </code> <a href='#grammar-production-collection'>collection</a>) <a href='#grammar-production-predicateObjectList'>predicateObjectList</a>? '<code class='grammar-literal'>.</code>'</td>
+
+    <td><a href='#grammar-production-blankNodePropertyList'>blankNodePropertyList</a> 
+        <a href='#grammar-production-predicateObjectList'>predicateObjectList</a>?
+        '<code class='grammar-literal'>.</code>'
+      <code>| </code> 
+      <a href='#grammar-production-collection'>collection</a>
+      <a href='#grammar-production-predicateObjectList'>predicateObjectList</a> 
+      '<code class='grammar-literal'>.</code>'
+    </td>
 </tr>
             <tr id="grammar-production-wrappedGraph" data-grammar-original="[5g] wrappedGraph   ::=&#x27;{&#x27; triplesBlock? &#x27;}&#x27;" data-grammar-expression="(&#x27;,&#x27;, [(&quot;&#x27;&quot;, &#x27;{&#x27;), (&#x27;?&#x27;, (&#x27;id&#x27;, &#x27;triplesBlock&#x27;)), (&quot;&#x27;&quot;, &#x27;}&#x27;)])" >
     <td>[5g]</td>