code: def _spoken_representation_L2(lst_lst_char):
      
      s = ''
      inter_char = ' '
      inter_word = ' (space) '
      for i, word in enumerate(lst_lst_char):
          if i >= 1:
              s += inter_word
          for j, c in enumerate(word):
              if j != 0:
                  s += inter_char
              s += mtalk.encoding.morsetab[c]
      return s
docs: >>> lst = [['M', 'O', 'R', 'S', 'E'], ['C', 'O', 'D', 'E']]
      >>> _spoken_representation_L2(lst)
      '-- --- .-. ... . (space) -.-. --- -.. .'