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/2a52ac85-ab23-7e2d-e054-020820f2d1c3-row-9dbf60aa6ab92b5a78176a9ecbcd0f8a>