code: public static void parseNature(Term term) {
          if (!Nature.NW.equals(term.natrue())) {
              return;
          }
  
          String name = term.getName();
  
          if (name.length() <= 3) {
              return;
          }
  
          // 是否是外国人名
          if (ForeignPersonRecognition.isFName(name)) {
              term.setNature(NatureLibrary.getNature("nrf"));
              return;
          }
  
          List<Term> subTerm = term.getSubTerm();
  
          // 判断是否是机构名
          term.setSubTerm(subTerm);
          Term first = subTerm.get(0);
          Term last = subTerm.get(subTerm.size() - 1);
          int[] is = companyMap.get(first.getName());
          int all = 0;
  
          is = companyMap.get(last.getName());
          if (is != null) {
              all += is[1];
          }
  
          if (all > 1000) {
              term.setNature(NatureLibrary.getNature("nt"));
              return;
          }
      }
docs: 得到细颗粒度的分词，并且确定词性
  
  @return 返回是null说明已经是最细颗粒度