a-a aaa aad aah aak aao ad- ada add adh adk ado aha ahd ahh ahk aho aka akd akh akk ako aoa aod aoh aok aoo daa dad dah dak dao dda ddd ddh ddk ddo dh- dha dhd dhh dhk dho dka dkk dko doa dod doh dok doo haa had hah hak hao hda hdd hdh hdk hdo hha hhd hhh hhk hho hka hkd hkh hkk hko hoa hod hoh hok hoo ka- kaa kad kah kak kao kda kdh kdk kdo kha khh khk kho kkh kkk koa kod koh kok koo oaa oad oah oak oao oda odd odh odo oha ohd ohh oho oka okd okk oko oo- ooa ood ooh ook ooo