* @param selectedUri the initial selected URI
*/
public Tutorial1App(final String selectedUri) {
this.selectedUri = selectedUri;
//get the singleton instance of TcManager
final TcManager tcManager = TcManager.getInstance();
//the arbitrary name we use for our mutable graph
final UriRef mGraphName = new UriRef("http://tutorial.example.org/");
//the m-graph into which we'll put the triples we collect
mGraph = tcManager.createMGraph(mGraphName);
try {
loadContextFromWeb();
} catch (IOException ex) {
System.err.println("Error retrieving " + selectedUri);
ex.printStackTrace();