LOCAL
      x : SET OF qualification_type_relationship;
    END_LOCAL;

    IF  relation.relating_qualification_type IN  relatives THEN
      RETURN  (FALSE);
    END_IF;
    x := QUERY(qultyp <* bag_to_set(USEDIN(relation.relating_qualification_type, 'QUALIFICATIONS_SCHEMA.' + 'QUALIFICATION_TYPE_RELATIONSHIP.' + 'RELATED_QUALIFICATION_TYPE')) | specific_relation IN TYPEOF(qultyp));
    REPEAT i := 1 TO HIINDEX(x);
      IF NOT acyclic_qualification_type_relationship(x[i], relatives + relation.relating_qualification_type, specific_relation) THEN
        RETURN  (FALSE);
      END_IF;
    END_REPEAT;
    RETURN (TRUE);