source: class ServiceTest {
  
      private Logger logger;
      private Service service;
  
      @Test
      public void select() throws LoadException {
  
target:         Mappings mappings = service.select("select distinct ?Concept where {[] a ?Concept} LIMIT 100");
          logger.info("returned mappings = {}", mappings);
          assertEquals(100, mappings.size());
      }
  
  }