public static void testAsk() throws Exception {
DataSource myDS = new ProtocolDataSource("http://DBpedia.org/sparql");
Connection conn = myDS.getConnection(NoCredentials.INSTANCE);
Command query = conn.createCommand("ASK { <http://dbpedia.org/resource/Terry_Gilliam> ?p ?o }");
Result r = query.execute();
showMetadata(r);
logger.debug("result = {}", ((BooleanResult)r).getResult());
r.close();
query.close();