OWLOntology ont = getOWLOntology("ont");
OWLDataProperty prop = DataProperty(iri("prop"));
OWLNamedIndividual indA = NamedIndividual(iri("indA"));
OWLLiteral lit = Literal(3);
OWLOntologyManager man = ont.getOWLOntologyManager();
OWLNegativeDataPropertyAssertionAxiom ax = NegativeDataPropertyAssertion(
prop, indA, lit);
man.addAxiom(ont, ax);
performAxiomTests(ont, ax);
assertTrue(ont.getNegativeDataPropertyAssertionAxioms(indA)
.contains(ax));