} else if (term instanceof NF5) {
ontologyNF5.add((NF5) term);
} else if (term instanceof NF6) {
reflexiveRoles.add(((NF6) term).getR());
} else if (term instanceof NF7) {
final NF7 nf7 = (NF7) term;
addTerms(ontologyNF7, nf7);
} else if (term instanceof NF8) {
final NF8 nf8 = (NF8) term;
addTerms(ontologyNF8, nf8);
} else {