Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '%' (0x25) in SPARQL expression at '%' SPARQL query: define sql:big-data-const 0 #output-format:text%2Fhtml SELECT DISTINCT %3Fexpression SAMPLE%28%3Ftitle%29 as %3Ftitle%0D%0A WHERE %7B%0D%0A %3Fexpression a efrbroo%3AF22_Self-Contained_Expression %3B%0D%0A rdfs%3Alabel %3Ftitle .%0D%0A %3FexpCreation efrbroo%3AR17_created %3Fexpression %3B%0D%0A ecrm%3AP9_consists_of %2F ecrm%3AP14_carried_out_by %3Fcomposer .%0D%0A %3Fcomposer foaf%3Aname %22Wolfgang Amadeus Mozart%22%0D%0A %7D ORDER BY %3Ftitle%0D%0A