title: How to append results from multiple SPARQL queries and write them into RDF
body: <p>I want to append results from multiple SPARQL queries and write them into RDF.  I used Jena API. I tried something like this but couldn't succeed. Thanks a lot for any solution.</p>
  
  <pre><code>String query1 = {?s ?p ?o.}
  String query2 = {?s1 ?p1 ?o1.}
  Query query = QueryFactory.create(query1);              
  QueryExecution qexec = QueryExecutionFactory.sparqlService("SPARQLEndpoint", query);
  ResultSet results = qexec.execSelect();
  ResultSetFormatter.out(System.out, results,query) ;
  ResultSetFormatter.asRDF(model, results);
  </code></pre>