--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/eg-25-extended-crime-file-example/rdf/extended-crime-file-pt4.ttl	Thu May 31 18:42:21 2012 +0200
@@ -0,0 +1,17 @@
+@prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix sioc: <http://rdfs.org/sioc/ns#> .
+@prefix prov: <http://www.w3.org/ns/prov#> .
+@prefix :   <http://example.org#> .
+
+:post19201
+      a prov:Entity, sioc:Post;
+	  prov:invalidatedAtTime "2012-09-02T01:31:00Z";
+	  prov:wasInvalidatedBy :hard_disk_failure;
+.
+
+:hard_disk_failure
+	  a prov:Activity;
+	  prov:wasEndedAt "2012-09-02T01:31:00Z";
+.
+