--- a/examples/eg-24-prov-o-html-examples/rdf/create/rdf/class_Invalidation.ttl	Wed Sep 12 15:48:38 2012 +0100
+++ b/examples/eg-24-prov-o-html-examples/rdf/create/rdf/class_Invalidation.ttl	Wed Sep 12 17:58:27 2012 -0400
@@ -4,7 +4,7 @@
 @prefix wgs:  <http://www.w3.org/2003/01/geo/wgs84_pos#> .
 @prefix prov: <http://www.w3.org/ns/prov#> .
 @prefix foaf: <http://xmlns.com/foaf/0.1/> .
-@prefix :     <http://example.com/> .
+@base:     <http://example.com/> .
 
 :the-Painter 
    a prov:Entity, :Painting;