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" DESCRIBE <http://dati.lavoro.gov.it/lod/79dbacc5-bf9f-0a0b-e054-020820e73b35-row-268d3491d631ce613bb995d6a8de4c98>