Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '&' (0x26) in SPARQL expression at '&' SPARQL query: define sql:big-data-const 0 define sql:describe-mode "CBD" #output-format:application/odata+json define sql:describe-mode "CBD" DESCRIBE <http://dati.lavoro.gov.it/lod/fdcf23c2-5c7c-8603-e054-020820e73b35-row-2d8bb1b8cefc4ae4750073062d6cefdb>