code: def _cond_n(self, word, suffix_len):
          
          if len(word) - suffix_len >= 3:
              if word[-suffix_len - 3] == 's':
                  if len(word) - suffix_len >= 4:
                      return True
              else:
                  return True
          return False
docs: Return Lovins' condition N.
  
          Parameters
          ----------
          word : str
              Word to check
          suffix_len : int
              Suffix length
  
          Returns
          -------
          bool
              True if condition is met