code: public int[] clusterId(String word)
      {
          int[] ids = new int[3];
          ids[0] = -100;
          ids[1] = -100;
          ids[2] = -100;
          if (brownFullClusters.containsKey(word))
              ids[0] = brownFullClusters.get(word);
  
          if (ids[0] > 0)
          {
              ids[1] = brown4Clusters.get(ids[0]);
              ids[2] = brown6Clusters.get(ids[0]);
          }
          return ids;
      }
docs: 获取聚类id
  
  @param word
  @return