public boolean assertDataPropertyInstance(String ind, String prop, int value) {
   OWLDataProperty dataProp =
       OWLFactory.getOWLDataProperty(
           IRI.create(topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + prop));
   OWLDataPropertyAssertionAxiom tmpAx =
       OWLFactory.getOWLDataPropertyAssertionAxiom(
           dataProp,
           OWLFactory.getOWLNamedIndividual(
               IRI.create(topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + ind)),
           OWLFactory.getOWLLiteral(value));
   manager.addAxiom(topIxOnt, tmpAx);
   return true;
 }
  ////////////////////////////////
  // INDIVIDUAL ASSERTION METHODS//
  ////////////////////////////////
  public boolean assertSiteIndividual(String siteNameHash, String siteNameAnnotation) {
    OWLClassExpression tmpCE = OWLFactory.getOWLClass(":Site", topIxPrefixManager);
    OWLIndividual tmpInd = OWLFactory.getOWLNamedIndividual(':' + siteNameHash, topIxPrefixManager);

    manager.addAxiom(topIxOnt, OWLFactory.getOWLClassAssertionAxiom(tmpCE, tmpInd));
    manager.addAxiom(
        topIxOnt,
        OWLFactory.getOWLAnnotationAssertionAxiom(
            OWLFactory.getOWLAnnotationProperty(
                IRI.create(
                    topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + "individualName")),
            IRI.create(topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + siteNameHash),
            OWLFactory.getOWLLiteral(siteNameAnnotation)));
    return true;
  }
  public boolean assertHouseIndividual(String houseEntryHash, String houseEntryAnnotation) {
    OWLClassExpression tempClassExpression = OWLFactory.getOWLClass(":House", topIxPrefixManager);
    OWLIndividual tempIndividual =
        OWLFactory.getOWLNamedIndividual(':' + houseEntryHash, topIxPrefixManager);

    manager.addAxiom(
        topIxOnt, OWLFactory.getOWLClassAssertionAxiom(tempClassExpression, tempIndividual));
    manager.addAxiom(
        topIxOnt,
        OWLFactory.getOWLAnnotationAssertionAxiom(
            OWLFactory.getOWLAnnotationProperty(
                IRI.create(
                    topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + "individualName")),
            IRI.create(topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + houseEntryHash),
            OWLFactory.getOWLLiteral(houseEntryAnnotation)));
    return true;
  }
  public boolean assertRoomIndividual(
      String roomName, String roomIndividualHash, String roomIndividualAnnotation) {
    OWLClassExpression tempClassExpression =
        OWLFactory.getOWLClass(
            IRI.create(
                roomToIRI.get(
                    roomName))); // retrieves the Room Class IRI fron the roomToIRI map, using
                                 // roomID as a key.
    OWLIndividual tempIndividual =
        OWLFactory.getOWLNamedIndividual(':' + roomIndividualHash, topIxPrefixManager);

    manager.addAxiom(
        topIxOnt, OWLFactory.getOWLClassAssertionAxiom(tempClassExpression, tempIndividual));
    manager.addAxiom(
        topIxOnt,
        OWLFactory.getOWLAnnotationAssertionAxiom(
            OWLFactory.getOWLAnnotationProperty(
                IRI.create(
                    topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + "individualName")),
            IRI.create(
                topIxOnt.getOntologyID().getOntologyIRI().toString() + '#' + roomIndividualHash),
            OWLFactory.getOWLLiteral(String.format(roomIndividualAnnotation))));
    return true;
  }