Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '%' (0x25) in SPARQL expression at '%' SPARQL query: define%20sql%3Adescribe-mode%20%22CBD%22%20%20DESCRIBE%20%3Chttps%3A%2F%2Flinked.opendata.cz%2Fresource%2Fknowledge-graph-browser%2Fdataset%2Fwikidata%3E