public static void GetSparqlExpression(Expression expression, SparqlQueryBuilder queryBuilder)
        {
            var visitor          = new SparqlGeneratorSelectExpressionTreeVisitor(queryBuilder);
            var resultExpression = visitor.VisitExpression(expression);

            if (resultExpression is SelectIdentifierVariableNameExpression)
            {
                var selectId  = resultExpression as SelectIdentifierVariableNameExpression;
                var selectVar = queryBuilder.NextVariable();
                queryBuilder.AddBindExpression("STRAFTER(STR(?" + selectId.Name + "), " + SparqlQueryBuilder.QuoteLiteralString(selectId.IdentifierPrefix) + ")", selectVar);
                queryBuilder.AddSelectVariable(selectVar);
            }
            else if (resultExpression is SelectVariableNameExpression)
            {
                queryBuilder.AddSelectVariable((resultExpression as SelectVariableNameExpression).Name);
            }
        }