Fixes for Turtle serializer

Author: mirkospasic

src/main/java/ldbc/snb/datagen/serializer/snb/interactive/TurtleInvariantSerializer.java

@@ -101,7 +101,7 @@ protected void serialize(final Organization organization) {
     protected void serialize(final TagClass tagClass) {
 
         StringBuffer result = new StringBuffer(350);
-        Turtle.writeDBPData(writers[FileNames.SOCIAL_NETWORK.ordinal()],SN.getTagClassURI(tagClass.id), RDFS.label, Turtle.createLiteral(Dictionaries.tags.getClassLabel(tagClass.id)));
+        Turtle.writeDBPData(writers[FileNames.SOCIAL_NETWORK.ordinal()],SN.getTagClassURI(tagClass.id), RDFS.label, Turtle.createLiteral(Dictionaries.tags.getClassName(tagClass.id)));
         Turtle.createTripleSPO(result, SN.getTagClassURI(tagClass.id), RDF.type, SNVOC.TagClass);
 
         if (tagClass.name.equals("Thing")) {

src/main/java/ldbc/snb/datagen/serializer/snb/interactive/TurtlePersonActivitySerializer.java

@@ -124,7 +124,7 @@ protected void serialize( final Post post ) {
 
 		for( Integer tag : post.tags()) {
 			String topic = Dictionaries.tags.getName(tag);
-			Turtle.createTripleSPO(result, prefix, SNVOC.hasTag, DBP.fullPrefixed(topic));
+			Turtle.createTripleSPO(result, prefix, SNVOC.hasTag, SNTAG.fullPrefixed(topic));
 		}
 		writers[FileNames.SOCIAL_NETWORK.ordinal()].write(result.toString());
 	}