pirates/commit

Include some core dependencies

diff --git a/rdf/pirates/Manifest.ttl b/rdf/pirates/Manifest.ttl
index f8ce85e..8ff70fa 100644
--- a/rdf/pirates/Manifest.ttl
+++ b/rdf/pirates/Manifest.ttl
@@ -9,7 +9,7 @@
 @prefix	   dcam: <http://purl.org/dc/dcam/> .
 @prefix	    eor: <http://dublincore.org/2000/03/13/eor#> .
 
-#	OWL
+# Load pirates ontology and data from local files and the web
 
 <pirates>
 	a lib:Instances ;
@@ -19,5 +19,8 @@
 		<piracy_events_imb_mss_eez.rdf> ,
 		<types_and_mappings.rdf> ,
 		<eez.ttl> ,
-		<http://semanticweb.cs.vu.nl/2009/11/sem/> .
+		<http://semanticweb.cs.vu.nl/2009/11/sem/> ,
+		<http://www.w3.org/2002/07/owl> ,
+		<http://www.w3.org/1999/02/22-rdf-syntax-ns> ,
+		<http://www.w3.org/2000/01/rdf-schema> .