OntProperty higher = model.getOntProperty( ns + "higher" );
assertIteratorValues( model.listStatements( null, higher, (RDFNode) null ),
new Statement[] {
model.createStatement( a, higher, b ),
model.createStatement( b, higher, c ),
model.createStatement( b, higher, d ),
model.createStatement( c, higher, a ),
model.createStatement( d, higher, a ), } );
assertTrue( c.isSameAs( d ) );