OntClass c1 = model.createClass( ns + "c1" );
c1.addEquivalentClass( model.createSomeValuesFromRestriction( null, s, pi ) );
assertFalse( model.contains( c1, RDFS.subClassOf, OWL2.Nothing ) );
OntClass c2 = model.createClass( ns + "c2" );
Resource b2 = model.createResource();
model.add(b2, RDF.type, OWL2.DataRange);
model.add(b2, OWL2.datatypeComplementOf, pi);
c2.addEquivalentClass( model.createSomeValuesFromRestriction( null, s, b2 ) );
assertFalse( model.contains( c2, RDFS.subClassOf, OWL2.Nothing ) );