final Graph graph = model.getGraph();
out.println("Graph := "+graph);
if (graph.isEmpty()) {
final Resource product1 = model.createResource(
iriFactory.construct( MY_NS +"product/1" )
.toString() );
final Property hasName = model.createProperty( MY_NS, "#hasName");
final Statement stmt = model.createStatement(
product1, hasName, model.createLiteral("Beach Ball","en") );