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Alex Rivera
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Im trying to create a SPARQL query using Jena to query DBpedia. The query is working when I use it with standalone tools (Twinkle) but when I plug it in this Java code it returns an empty set. String sparqlQueryString1 = "PREFIX dbont: <http://dbpedia.org/ontology/> " + "PREFIX dbp: <http://dbpedia.org/property/>" + "PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>" + " SELECT ?musician ?place" + " FROM<http://dbpedia.org/resource/Daphne_Oram>" + " WHERE { " + " ?musician dbont:birthPlace ?place ." + " }"; Query query = QueryFactory.create(sparqlQueryString1); QueryExecution qexec = QueryExecutionFactory.sparqlService("http://dbpedia.org/sparql", query); ResultSet results = qexec.execSelect(); ResultSetFormatter.out(System.out, results, query); qexec.close() ; Any ideas what I'm doing wrong?
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