OntModel model = ModelFactory.createOntologyModel( PelletReasonerFactory.THE_SPEC );
OntClass Person = model.createClass( ns + "Person" );
Individual john = model.createIndividual( ns + "JohnDoe", Person );
DatatypeProperty email = model.createDatatypeProperty( ns + "email", false );
john.addProperty( email, "john.doe@unknown.org" );
john.addProperty( email, "jdoe@unknown.org" );
assertTrue( model.validate().isValid() );
assertIteratorValues( model.listSubjectsWithProperty( email, "john.doe@unknown.org" ),