// already handled
// see: trTypedefToAnnotationProperty(Frame typedefFrame)
return null;
} else {
String id = typedefFrame.getId();
OWLObjectProperty p = trObjectProp(id);
add(fac.getOWLDeclarationAxiom(p));
String xid = translateShorthandIdToExpandedId(id);
if (!xid.equals(id)) {
OWLAxiom ax = fac.getOWLAnnotationAssertionAxiom(
trTagToAnnotationProp("shorthand"), p.getIRI(),
trLiteral(id), new HashSet<OWLAnnotation>());
add(ax);
}
/*
* // See 5.9.3 Special Rules for Relations Collection<Xref> xrefs =