a-a a-z aaa aad aag aao aap aaz ad- ada add adg ado adp adz ag- aga agd agg ago agp agz aoa aod aog aoo aop ap- apa apd apg apo app az- aza azd azg azo azp azz daa dad dag dao dap daz dda ddd ddg ddo ddp ddz dga dgd dgg dgp dgz doa dod dog doo dop doz dpa dpd dpg dpo dpp dpz dza dzd dzo dzp g-d g-p gaa gad gag gao gap gaz gda gdd gdo gdp gga ggd ggg ggo ggp ggz goa god gog goo gop goz gpa gpd gpg gpo gpp gpz gza gzo gzp oaa oad oag oao oap oda odd odg odo odp oga ogd ogg ogo ogp oo- ooa ood oog ooo oop op- opa opd opg opo opp oza ozo ozz p-p paa pad pag pao pap paz pda pdd pdg pdo pdp pdz pga pgd pgg pgo pgp poa pod pog poo pop poz ppa ppd ppg ppo ppp ppz pzp z-g zaa zad zag zao zap zaz zgg zo- zoa zod zog zoo zpg zpo zpp zzz