Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '&' (0x26) in SPARQL expression at '&' SPARQL query: define sql:big-data-const 0 #output-format:application/microdata+json define sql:describe-mode "CBD" DESCRIBE <http://dati.lavoro.gov.it/SpodCkanApi/api/2/rest/dataset/137f5136-9f2a-4ed1-8a32-7374c2f9cf8d.csv>