s1.createReifiedStatement();
s2.createReifiedStatement();
assertEquals(2, model.listReifiedStatements().toList().size());
Reifier r = new Reifier2(model.getGraph()) ;
//r = model.getGraph().getReifier() ;
r.remove(s2.asTriple()) ;
assertEquals(1, model.listReifiedStatements().toList().size());
}