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/atom+xml define sql:describe-mode "CBD" DESCRIBE <http://dati.lavoro.gov.it/lod/fa86ac85-8b82-9625-e054-020820d23886-row-526f29d6ae19c0ad9c6a92c2234990c5>