--- a/ontology/khalid-jun-dropbox/eg16-journalism-simple-without-comments.ttl	Mon Jul 09 16:40:37 2012 -0400
+++ b/ontology/khalid-jun-dropbox/eg16-journalism-simple-without-comments.ttl	Mon Jul 09 16:44:26 2012 -0400
@@ -1,60 +1,60 @@
 @prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
 @prefix prov: <http://www.w3.org/ns/prov#> .
 @prefix foaf: <http://xmlns.com/foaf/0.1/> .
-@prefix ex:   <http://example.org#> .
+@prefix :     <http://example.org#> .
 
-ex:bar_chart
+:bar_chart
    a prov:Entity;
-   prov:wasGeneratedBy ex:illustrationActivity;
-   prov:wasDerivedFrom ex:aggregatedByRegions;
+   prov:wasGeneratedBy :illustrationActivity;
+   prov:wasDerivedFrom :aggregatedByRegions;
 .
 
-ex:illustrationActivity 
+:illustrationActivity 
    a prov:Activity; 
-   prov:used              ex:aggregatedByRegions;
-   prov:wasAssociatedWith ex:derek;
-   prov:wasInformedBy     ex:aggregationActivity;
+   prov:used              :aggregatedByRegions;
+   prov:wasAssociatedWith :derek;
+   prov:wasInformedBy     :aggregationActivity;
 .
 
-ex:aggregatedByRegions
+:aggregatedByRegions
    a prov:Entity;
-   prov:wasGeneratedBy ex:aggregationActivity;
+   prov:wasGeneratedBy :aggregationActivity;
 .
 
-ex:aggregationActivity
+:aggregationActivity
    a prov:Activity;
    prov:startedAtTime    "2011-07-14T01:01:01Z"^^xsd:dateTime;
-   prov:wasAssociatedWith ex:derek;
-   prov:used              ex:crimeData;
-   prov:used              ex:nationalRegionsList;
+   prov:wasAssociatedWith :derek;
+   prov:used              :crimeData;
+   prov:used              :nationalRegionsList;
    prov:endedAtTime      "2011-07-14T02:02:02Z"^^xsd:dateTime;
 .
 
-ex:crimeData
+:crimeData
    a prov:Entity;
-   prov:wasAttributedTo ex:government;
+   prov:wasAttributedTo :government;
 .
-ex:nationalRegionsList 
+:nationalRegionsList 
    a prov:Entity;
-   prov:wasAttributedTo ex:civil_action_group;
+   prov:wasAttributedTo :civil_action_group;
 .
 
-ex:aggregatedByRegions prov:wasAttributedTo ex:derek .
-ex:bar_chart           prov:wasAttributedTo ex:derek .
+:aggregatedByRegions prov:wasAttributedTo :derek .
+:bar_chart           prov:wasAttributedTo :derek .
 
-ex:derek
+:derek
    a prov:Agent;
    a foaf:Person;
    foaf:givenName "Derek"^^xsd:string;
-   foaf:mbox      <mailto:dererk@example.org>;
-   prov:actedOnBehalfOf ex:chartgen;
+   foaf:mbox      <mailto:derek@example.org>;
+   prov:actedOnBehalfOf :natonal_newspaper_inc;
 .
 
-ex:chartgen 
+:national_newspaper_inc 
    a prov:Agent;
    a prov:Organization;
-   foaf:name "Chart Generators";
+   foaf:name "National Newspaper, Inc.";
 . 
 
-ex:government         a prov:Organization, foaf:Organization .
-ex:civil_action_group a prov:Organization, foaf:Organization .
+:government         a prov:Organization, foaf:Organization .
+:civil_action_group a prov:Organization, foaf:Organization .