code: public List<Term> getTermsFromWFs(List<String> wfIds) {
  	List<Term> terms = new ArrayList<Term>();
  	for (String wfId : wfIds) {
  	    terms.addAll(this.wfId2Terms.get(wfId));
  	}
  	return terms;
      }
docs: Hau kendu behar da