@Before
  public void setUp() throws Exception {
    sail = createSail();

    con = sail.getConnection();

    // Create values
    vf = sail.getValueFactory();

    painter = vf.createURI(EXAMPLE_NS, PAINTER);
    paints = vf.createURI(EXAMPLE_NS, PAINTS);
    painting = vf.createURI(EXAMPLE_NS, PAINTING);
    picasso = vf.createURI(EXAMPLE_NS, PICASSO);
    guernica = vf.createURI(EXAMPLE_NS, GUERNICA);
    rembrandt = vf.createURI(EXAMPLE_NS, REMBRANDT);
    nightwatch = vf.createURI(EXAMPLE_NS, NIGHTWATCH);

    context1 = vf.createURI(EXAMPLE_NS, CONTEXT_1);
    context2 = vf.createURI(EXAMPLE_NS, CONTEXT_2);
  }