@Override public Set<OWLDataRange> getOperands() { return CollectionFactory.getCopyOnRequestSetFromImmutableCollection(operands); }
@Override public Set<OWLFacetRestriction> getFacetRestrictions() { return CollectionFactory.getCopyOnRequestSetFromImmutableCollection(facetRestrictions); }
@Override public Set<OWLClassExpression> getClassExpressions() { return CollectionFactory.getCopyOnRequestSetFromImmutableCollection(classExpressions); }
@Override public Set<SWRLAtom> getHead() { return CollectionFactory.getCopyOnRequestSetFromImmutableCollection(head); }