Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '%' (0x25) in SPARQL expression at '%' SPARQL query: define sql:gs-app-callback "ODS" define%20sql%3Adescribe-mode%20%22CBD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fckb.dbpedia.org%2Fresource%2F%DA%BE%D8%A7%D9%85%D9%84%DB%8E%D8%AA%3E