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%2Fen.wikipedia.org%2Fwiki%2FComparison_of_wiki_software%3Foldid%3D1054846586%26ns%3D0%23this%3E