a-a a-z aaa aad aah aao aap aaz ad- ada add adh ado adp adz aha ahd ahh aho ahp ahz aoa aod aoh aoo aop ap- apa apd aph apo app az- aza azd azo azp azz daa dad dah dao dap daz dda ddd ddh ddo ddp ddz dh- dha dhd dhh dho dhp doa dod doh doo dop doz dpa dpd dph dpo dpp dpz dza dzd dzo dzp haa had hah hao hap haz hda hdd hdh hdo hdp hdz hha hhd hhh hho hhp hhz hoa hod hoh hoo hop hpa hpd hph hpo hpp hzd hzo hzp oaa oad oah oao oap oda odd odh odo odp oha ohd ohh oho ohp oo- ooa ood ooh ooo oop op- opa opd oph opo opp oza ozo ozz p-p paa pad pah pao pap paz pda pdd pdh pdo pdp pdz pha phd pho php poa pod poh poo pop poz ppa ppd pph ppo ppp ppz pzp zaa zad zah zao zap zaz zha zho zo- zoa zod zoo zpo zpp zzz