<rdf:RDF 
xml:base=
"http://www.example.org/ISA14#" 
xmlns:owl ="http://www.w3.org/2002/07/owl#" 
xmlns:rdf ="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" 
xmlns:xsd ="http://www.w3.org/2001/XMLSchema#" 
xmlns:ibs ="http://www.example.org/ISA14#" >
<owl:Ontology rdf:about="#" />
 <owl:Class rdf:about="http://www.example.org/ISA14#Researcher"/>
</rdf:RDF>