a-a aaa aae aak aao aap aas aea aee aek aeo aep aes aka ake akk ako akp aks aoa aoe aok aoo aop aos ap- apa ape apk apo app aps as- asa ase ask aso asp ass eaa eae eak eao eap eas eea eee eek eeo eep ees eka eke eko ekp eks eo- eoa eoe eok eoo eop eos ep- epa epe epo epp eps es- esa ese esk eso esp ess ka- kaa kae kak kao kap kas ke- kea kee kek keo kep kes kke kkk kkp kks koa koe kok koo kop kos kpa kpe kpk kpo kpp kps ksa kse ksk kso ksp kss oaa oae oak oao oap oas oea oee oeo oep oes oka oke okk oko okp oks oo- ooa ook ooo oop oos op- opa ope opk opo opp ops os- osa ose osk oso osp oss p-p paa pae pak pao pap pas pea pee pek peo pep pes pka pke pko pkp pks poa poe pok poo pop pos ppa ppe ppk ppo ppp pps ps- psa pse psk pso psp pss saa sae sak sao sap sas se- sea see sek seo sep ses sk- ska ske skk sko skp sks soa soe sok soo sop sos spa spe spk spo spp sps ss- ssa sse ssk sso ssp sss