--- a/examples/example6.nt	Wed Sep 11 16:07:11 2013 +0100
+++ b/examples/example6.nt	Wed Sep 11 20:27:42 2013 +0100
@@ -19,7 +19,6 @@
 _:genid3 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://w3.org/ns/odrl/2/Permission> .
 _:genid3 <http://w3.org/ns/odrl/2/action> <http://w3.org/ns/odrl/2/display> .
 _:genid3 <http://w3.org/ns/odrl/2/target> <http://example.com/wallpaper:2321> .
-_:genid3 <http://w3.org/ns/odrl/2/duty> <http://example.com/duty:02> .
 <http://example.com/policy:7777> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://w3.org/ns/odrl/2/Set> .
 <http://example.com/policy:7777> <http://w3.org/ns/odrl/2/permission> _:genid3 .
 <http://example.com/sony:99> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://w3.org/ns/odrl/2/Party> .

--- a/examples/example6.rdf	Wed Sep 11 16:07:11 2013 +0100
+++ b/examples/example6.rdf	Wed Sep 11 20:27:42 2013 +0100
@@ -31,7 +31,6 @@
     <odrl:permission>
       <odrl:Permission>
         <odrl:action rdf:resource="http://w3.org/ns/odrl/2/display"/>
-        <odrl:duty rdf:resource="http://example.com/duty:02"/>
         <odrl:target rdf:resource="http://example.com/wallpaper:2321"/>
       </odrl:Permission>
     </odrl:permission>

--- a/examples/example6.ttl	Wed Sep 11 16:07:11 2013 +0100
+++ b/examples/example6.ttl	Wed Sep 11 20:27:42 2013 +0100
@@ -31,8 +31,7 @@
 	odrl:permission [
 		a odrl:Permission ;
 		odrl:action odrl:display ;
-		odrl:target </wallpaper:2321> ;
-		odrl:duty </duty:02>
+		odrl:target </wallpaper:2321>
 	] .
 
 </sony:99> a odrl:Party .