a-a aaa aad aae aak aao aap ad- ada add ade adk ado adp aea aed aee aek aeo aep aka akd ake akk ako akp aoa aod aoe aok aoo aop ap- apa apd ape apk apo app daa dad dae dak dao dap dda ddd dde ddk ddo ddp de- dea ded dee dek deo dep dka dke dkk dko dkp doa dod doe dok doo dop dpa dpd dpe dpk dpo dpp eaa ead eae eak eao eap ed- eda edd ede edk edo edp eea eed eee eek eeo eep eka ekd eke eko ekp eo- eoa eod eoe eok eoo eop ep- epa epd epe epo epp ka- kaa kad kae kak kao kap kda kde kdk kdo kdp ke- kea ked kee kek keo kep kke kkk kkp koa kod koe kok koo kop kpa kpd kpe kpk kpo kpp oaa oad oae oak oao oap oda odd ode odo odp oea oed oee oeo oep oka okd oke okk oko okp oo- ooa ood ook ooo oop op- opa opd ope opk opo opp p-p paa pad pae pak pao pap pda pdd pde pdk pdo pdp pea ped pee pek peo pep pka pkd pke pko pkp poa pod poe pok poo pop ppa ppd ppe ppk ppo ppp