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 define%20sql%3Adescribe-mode%20%22CBD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fkaiko.getalp.org%2Fdbnary%2Fell%2F__ws_4_%CE%BA%CE%AD%CF%81%CE%B4%CE%BF%CF%82__%CE%BF%CF%85%CF%83%CE%B9%CE%B1%CF%83%CF%84%CE%B9%CE%BA%CF%8C__1%3E