code: public List<String> getAllWFIdsFromTerms(KAFDocument kaf) {
      List<Term> terms = kaf.getTerms();
      List<String> wfTermIds = new ArrayList<>();
      for (int i = 0; i < terms.size(); i++) {
        List<WF> sentTerms = terms.get(i).getWFs();
        for (WF form : sentTerms) {
          wfTermIds.add(form.getId());
        }
      }
      return wfTermIds;
    }
docs: Get all the WF ids for the terms contained in the KAFDocument.
  
  @param kaf
  the KAFDocument
  @return the list of all WF ids in the terms layer