public void testIsReified() {
   ReifiedStatement rs = model.createReifiedStatement(aURI, SPO);
   Resource BS = model.createResource(anchor + "BS");
   Property BP = model.createProperty(anchor + "BP");
   RDFNode BO = model.createProperty(anchor + "BO");
   model.add(rs, P, O);
   assertTrue("st should be reified now", SPO.isReified());
   assertTrue("m should have st reified now", model.isReified(SPO));
   assertFalse(
       "this new statement should not be reified", model.createStatement(BS, BP, BO).isReified());
 }