Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Only '(' and 'DISTINCT' are allowed after COUNT keyword in SPARQL expression at '%' SPARQL query: define sql:big-data-const 0 select count%28 distinct %3FConcept%29 as %3Fs where %7B%3FConcept %3Fh %5B%5D%7D LIMIT 10000