-er a-a aaa aae aah aak aar aea aee aeh aek aer aha ahe ahh ahk ahr aka ake akh akk akr ar- ara are arh ark arr eaa eae eah eak ear eea eee eek eer eha ehe ehh ehr eka eke ekh ekr era ere erh erk err haa hae hah hak har he- hea hee heh hek her hha hhe hhh hhk hhr hka hkh hkk hkr hr- hra hre hrh hrk hrr ka- kaa kae kah kak kar ke- kea kee keh kek ker kha khe khh khk khr kke kkh kkk kkr kra krk krr ra- raa rae rah rak rar re- rea ree reh rek rer rh- rha rhe rhh rhr rke rkk rra rrh rrk rrr