// Assuming ontology is already loaded into an OWLOntology object named 'ontology'
OWLDataFactory factory = OWLManager.getOWLDataFactory();

for (OWLSubClassOfAxiom axiom : ontology.getAxioms(AxiomType.SUBCLASS_OF)) {
    // Check if the RHS is an ObjectIntersectionOf
    if (axiom.getSuperClass() instanceof OWLObjectIntersectionOf) {
        OWLObjectIntersectionOf intersection = (OWLObjectIntersectionOf) axiom.getSuperClass();
        OWLClassExpression subclass = axiom.getSubClass();
        
        // Remove the original axiom
        ontology.removeAxiom(axiom);
        
        // Create and add new axioms for each part of the intersection
        for (OWLClassExpression part : intersection.getOperands()) {
            OWLSubClassOfAxiom newAxiom = factory.getOWLSubClassOfAxiom(subclass, part);
            ontology.addAxiom(newAxiom);
        }
    }
}

// Save the ontology or perform further processing