IRI.create("urn:primer#turtle"), new TurtleDocumentFormat());
assertTrue(profile.checkOntology(turt).getViolations().isEmpty());
// XXX somehow the Turtle parser introduces a tautology: the inverse of
// inverse(hasParent) is hasParent
// dropping said tautology to assert equality of the rest of the axioms
OWLObjectProperty hasParent = df.getOWLObjectProperty(IRI
.create("http://example.com/owl/families/hasParent"));
turt.getOWLOntologyManager().removeAxiom(
turt,
df.getOWLInverseObjectPropertiesAxiom(
df.getOWLObjectInverseOf(hasParent), hasParent));