I have updated a number of the examples. The RDF representation creates, or makes statements about several separate entities. http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9.html(Sc... to Bottom) * Now includes a way to document the original occurrence and id labels Here is the RDF http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9.rdf TXN_FCT < http://lsd.taxonconcept.org/describe/?url=http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9.rdf> *The Occurrence*: http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9#Occurre... TXN_FCT < http://lsd.taxonconcept.org/describe/?url=http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9%23Occurrence> URIburner < http://linkeddata.uriburner.com/about/html/http/ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9%01Occurrence> Sindice < http://sig.ma/search?pid=3e0bb912d2ab43e0efd7baa0bbcd1a4e > *The Individual * http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9#Individ... TXN_FCT < http://lsd.taxonconcept.org/describe/?url=http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9%23Individual> *An Identification * http://ocs.taxonconcept.org/ocs/f522444a-2dd9-400e-be59-47213ef38cb9#Identif... TXN_FCT < http://lsd.taxonconcept.org/describe/?url=http%3A%2F%2Focs.taxonconcept.org%2Focs%2Ff522444a-2dd9-400e-be59-47213ef38cb9%23Identification_0001> *The Species Concept* http://lod.taxonconcept.org/ses/ICmLC.html TXN_FCT < http://lsd.taxonconcept.org/describe/?url=http://lod.taxonconcept.org/ses/ICmLC%23Species> Area geo:44.86528100,-87.23147800;u=10 < http://lsd.taxonconcept.org/describe/?url=geo:44.86528100,-87.23147800;u%3D10> Also there seem to be several OWL validators, some which are for OWL 1 others for OWL 2 OWL 1 http://www.mygrid.org.uk/OWL/Validator OWL 2 http://owl.cs.manchester.ac.uk/validator/ Updated the ontologies, but they are not 100% yet. Beware of Protege !!!, You can create things that look correct and validate in Protege but the actual .owl file is not correct. http://lod.taxonconcept.org/ontology/txn.owl Respectfully, - Pete --------------------------------------------------------------- Pete DeVries Department of Entomology University of Wisconsin - Madison 445 Russell Laboratories 1630 Linden Drive Madison, WI 53706 TaxonConcept Knowledge Base <http://www.taxonconcept.org/> / GeoSpecies Knowledge Base <http://lod.geospecies.org/> About the GeoSpecies Knowledge Base <http://about.geospecies.org/> ------------------------------------------------------------