code: public Stats runBechmarkRF1() {
          Stats res = new Stats();
          
          String version = "20110731";
          
          // Classify ontology from stated form
          System.out.println("Classifying ontology");
          long start = System.currentTimeMillis();
          IFactory factory = new CoreFactory();
          NormalisedOntology no = new NormalisedOntology(factory);
          System.out.println("Importing axioms");
          
          RF1Importer imp = new RF1Importer(
                  this.getClass().getResourceAsStream(
                          "/sct1_Concepts_Core_INT_20110731.txt"), 
                  this.getClass().getResourceAsStream(
                          "/res1_StatedRelationships_Core_INT_20110731.txt"), 
                  version);
          
          Iterator<Ontology> it = imp.getOntologyVersions(new NullProgressMonitor());
          
          Ontology ont = null;
          while(it.hasNext()) {
              Ontology o = it.next();
              if(o.getVersion().equals("snomed")) {
                  ont = o;
                  break;
              }
          }
  
          // We can do this because we know there is only one ontology (RF1 does
          // not support multiple versions)
          if(ont == null) {
              throw new RuntimeException("Could not find version "+version+" in input files");
          }
          res.setAxiomTransformationTimeMs(System.currentTimeMillis() - start);
          start = System.currentTimeMillis();
          System.out.println("Loading axioms");
          no.loadAxioms(new HashSet<Axiom>((Collection<? extends Axiom>) ont.getStatedAxioms()));
          res.setAxiomLoadingTimeMs(System.currentTimeMillis() - start);
          start = System.currentTimeMillis();
          System.out.println("Running classification");
          no.classify();
          res.setClassificationTimeMs(System.currentTimeMillis() - start);
          start = System.currentTimeMillis();
          System.out.println("Computing taxonomy");
          no.buildTaxonomy();
          res.setTaxonomyBuildingTimeMs(System.currentTimeMillis() - start);
          System.out.println("Done");
  
          return res;
      }
docs: Runs the benchmark using an RF1 file as input.
  
  @param concepts
  The concepts file.
  @param relationships
  The stated relationships file.