OWLIndividual tmp=sub;
sub=obj;
obj=tmp;
ope=ope.getInverseProperty().getSimplified();
}
OWLNamedIndividual named=obj.asOWLNamedIndividual();
OWLAnonymousIndividual unnamed=sub.asOWLAnonymousIndividual();
namedNodes.add(named);
nodes.add(unnamed);
if (specialOPEdges.containsKey(unnamed)) {
Map<OWLNamedIndividual,Set<OWLObjectPropertyExpression>> specialEdges=specialOPEdges.get(unnamed);