Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '%' (0x25) in SPARQL expression at '%' SPARQL query: define sql:big-data-const 0 DEFINE sql:describe-mode "CBD" define%20sql%3Adescribe-mode%20%22CBD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Ffr.dbpedia.org%2Fresource%2FDavid_%28patronyme%29%3E