diff --git a/source/net/yacy/cora/lod/JenaTripleStore.java b/source/net/yacy/cora/lod/JenaTripleStore.java
index e31c916b7..52ec77ff6 100644
--- a/source/net/yacy/cora/lod/JenaTripleStore.java
+++ b/source/net/yacy/cora/lod/JenaTripleStore.java
@@ -12,6 +12,10 @@ import java.util.Map.Entry;
 import java.util.concurrent.ConcurrentHashMap;
 
 import net.yacy.cora.document.UTF8;
+import net.yacy.cora.lod.vocabulary.Geo;
+import net.yacy.cora.lod.vocabulary.HttpHeader;
+import net.yacy.cora.lod.vocabulary.Tagging;
+import net.yacy.cora.lod.vocabulary.YaCyMetadata;
 import net.yacy.kelondro.logging.Log;
 import net.yacy.search.Switchboard;
 
@@ -27,6 +31,13 @@ import com.hp.hpl.jena.util.FileManager;
 public class JenaTripleStore {
 
 	public static Model model = ModelFactory.createDefaultModel();
+	static {
+        model.setNsPrefix(YaCyMetadata.PREFIX, YaCyMetadata.NAMESPACE);
+        model.setNsPrefix(Tagging.DEFAULT_PREFIX, Tagging.DEFAULT_NAMESPACE);
+        model.setNsPrefix(HttpHeader.PREFIX, HttpHeader.NAMESPACE);
+        model.setNsPrefix(Geo.PREFIX, Geo.NAMESPACE);
+        model.setNsPrefix("pnd", "http://dbpedia.org/ontology/individualisedPnd");
+	}
 
 	public static ConcurrentHashMap<String, Model> privatestorage = null;
 
diff --git a/source/net/yacy/cora/lod/vocabulary/Geo.java b/source/net/yacy/cora/lod/vocabulary/Geo.java
index 5088fa0a2..8bae85a7a 100644
--- a/source/net/yacy/cora/lod/vocabulary/Geo.java
+++ b/source/net/yacy/cora/lod/vocabulary/Geo.java
@@ -34,18 +34,18 @@ public enum Geo implements Vocabulary {
     Long,
     Lat;
 
-    public final static String IDENTIFIER = "http://www.w3.org/2003/01/geo/wgs84_pos#";
+    public final static String NAMESPACE = "http://www.w3.org/2003/01/geo/wgs84_pos#";
     public final static String PREFIX = "geo";
 
     private final String predicate;
 
     private Geo() {
-        this.predicate = IDENTIFIER + this.name().toLowerCase();
+        this.predicate = NAMESPACE + this.name().toLowerCase();
     }
 
     @Override
     public String getURLStub() {
-        return IDENTIFIER;
+        return NAMESPACE;
     }
 
     @Override
diff --git a/source/net/yacy/cora/lod/vocabulary/HttpHeader.java b/source/net/yacy/cora/lod/vocabulary/HttpHeader.java
index 28f9d21e2..ea44d1663 100644
--- a/source/net/yacy/cora/lod/vocabulary/HttpHeader.java
+++ b/source/net/yacy/cora/lod/vocabulary/HttpHeader.java
@@ -86,18 +86,18 @@ public enum HttpHeader implements Vocabulary {
     via, // representing a Via header,
     warning; // representing a Warning header.
 
-    public final static String IDENTIFIER = "http://www.w3.org/WAI/ER/HTTP/WD-HTTP-in-RDF-20060131";
+    public final static String NAMESPACE = "http://www.w3.org/1999/xx/http#";
     public final static String PREFIX = "http";
 
     private final String predicate;
 
     private HttpHeader() {
-        this.predicate = IDENTIFIER +  this.name();
+        this.predicate = NAMESPACE +  this.name();
     }
 
     @Override
     public String getURLStub() {
-        return IDENTIFIER;
+        return NAMESPACE;
     }
 
     @Override
diff --git a/source/net/yacy/cora/lod/vocabulary/Tagging.java b/source/net/yacy/cora/lod/vocabulary/Tagging.java
index 64692b29c..0e1d67ba7 100644
--- a/source/net/yacy/cora/lod/vocabulary/Tagging.java
+++ b/source/net/yacy/cora/lod/vocabulary/Tagging.java
@@ -35,7 +35,8 @@ import net.yacy.document.geolocalization.Localization;
 
 public class Tagging {
 
-    private final static String DEFAULT_IDENTIFIER_STUB = "http://yacy.net/tagging#";
+    public final static String DEFAULT_NAMESPACE= "http://yacy.net/tagging#";
+    public final static String DEFAULT_PREFIX = "tag";
 
     private final String navigatorName;
     private final Map<String, String> synonym2term;
@@ -49,7 +50,7 @@ public class Tagging {
         this.synonym2term = new ConcurrentHashMap<String, String>();
         this.term2synonym = new ConcurrentHashMap<String, String>();
         this.synonym2synonyms = new ConcurrentHashMap<String, Set<String>>();
-        this.predicatePrefix = DEFAULT_IDENTIFIER_STUB;
+        this.predicatePrefix = DEFAULT_NAMESPACE;
         this.predicate = this.predicatePrefix + name;
         this.objectPrefix = "";
     }
diff --git a/source/net/yacy/cora/lod/vocabulary/YaCyMetadata.java b/source/net/yacy/cora/lod/vocabulary/YaCyMetadata.java
index 03b566eba..90038a6f8 100644
--- a/source/net/yacy/cora/lod/vocabulary/YaCyMetadata.java
+++ b/source/net/yacy/cora/lod/vocabulary/YaCyMetadata.java
@@ -76,7 +76,7 @@ public enum YaCyMetadata implements Vocabulary {
 
     public final static byte[] HASH_PREFIX = ASCII.getBytes("http://yacy.net/hash#");
     public final static int HASH_PREFIX_LENGTH = HASH_PREFIX.length;
-    public final static String IDENTIFIER = "http://yacy.net/vocabularies/yacymetadata#";
+    public final static String NAMESPACE = "http://yacy.net/vocabularies/yacymetadata#";
     public final static String PREFIX = "yacy";
 
     private final String predicate;
@@ -89,12 +89,12 @@ public enum YaCyMetadata implements Vocabulary {
     }
 
     private YaCyMetadata() {
-        this.predicate = IDENTIFIER +  this.name();
+        this.predicate = NAMESPACE +  this.name();
     }
 
     @Override
     public String getURLStub() {
-        return IDENTIFIER;
+        return NAMESPACE;
     }
 
     @Override