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/6067ac85-df55-5623-e054-020820f2d1c3-row-f45188ad87eafb2e3ef7c22b828f1c1d>