@Override
 public void visit(SWRLSameIndividualAtom node) {
   node.getFirstArgument().accept(this);
   SWRLIArgument arg0 = (SWRLIArgument) obj;
   node.getSecondArgument().accept(this);
   SWRLIArgument arg1 = (SWRLIArgument) obj;
   obj = dataFactory.getSWRLSameIndividualAtom(arg0, arg1);
 }
 @Override
 public void visit(SWRLSameIndividualAtom node) {
   for (SWRLArgument a : node.getAllArguments()) {
     writeSpace();
     a.accept(this);
   }
 }
 public void visit(SWRLSameIndividualAtom node) {
   node.getSecondArgument().accept(this);
 }