a-a a-z aaa aah aak aao aap aaz aha ahh ahk aho ahp ahz aka akh akk ako akp aoa aoh aok aoo aop ap- apa aph apk apo app az- aza azo azp azz haa hah hak hao hap haz hha hhh hhk hho hhp hhz hka hkh hkk hko hkp hoa hoh hok hoo hop hpa hph hpk hpo hpp hzo hzp k-z ka- kaa kah kak kao kap kaz kha khh khk kho khz kkh kkk kkp koa koh kok koo kop koz kpa kph kpk kpo kpp kzo oaa oah oak oao oap oha ohh oho ohp oka okk oko okp oo- ooa ooh ook ooo oop op- opa oph opk opo opp oza ozo ozz p-p paa pah pak pao pap paz pha phk pho php pka pko pkp poa poh pok poo pop poz ppa pph ppk ppo ppp ppz pzk pzp zaa zah zak zao zap zaz zha zho zka zo- zoa zok zoo zpo zpp zzz