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:text/html define sql:describe-mode "CBD" DESCRIBE <http://dati.lavoro.gov.it/lod/1b3bac85-90f7-8b2f-e054-020820f2d1c3-row-042374487324b2b6d4e6bc9f4b56d1c1>