-er a-a aaa aae aak aam aao aap aar aas aea aee aek aem aeo aep aer aes aka ake akk akm ako akp akr aks ama ame amk amm amo amp amr ams aoa aoe aok aom aoo aop aor aos ap- apa ape apk apm apo app apr aps ar- ara are ark arm aro arp arr ars as- asa ase ask asm aso asp asr ass eaa eae eak eam eao eap ear eas eea eee eek eem eeo eep eer ees eka eke eko ekp ekr eks em- ema eme emk emm emo emp emr ems eo- eoa eoe eok eom eoo eop eor eos ep- epa epe epm epo epp epr eps era ere erk erm ero erp err ers es- esa ese esk esm eso esp esr ess ka- kaa kae kak kam kao kap kar kas ke- kea kee kek kem keo kep ker kes kke kkk kkm kkp kkr kks kma kme kmk kmm kmo kmp kms koa koe kok kom koo kop kor kos kpa kpe kpk kpm kpo kpp kpr kps kra krk kro krp krr krs ksa kse ksk ksm kso ksp ksr kss m-o m-r maa mae mak mam mao map mar mas mea mee mek mem meo mep mer mes mka mke mkk mkm mko mkp mkr mks mma mme mmk mmm mmo mmp mmr mms moa moe mok mom moo mop mor mos mpa mpe mpk mpm mpo mpp mpr mps mra mre mrk mrm mro mrp mrr mrs msa mse msk msm mso msp msr mss oaa oae oak oam oao oap oar oas oea oee oem oeo oep oer oes oka oke okk oko okp okr oks om- oma ome omm omo omp omr oms oo- ooa ook oom ooo oop oor oos op- opa ope opk opm opo opp opr ops or- ora ore ork orm oro orp orr ors os- osa ose osk osm oso osp osr oss p-p paa pae pak pam pao pap par pas pea pee pek pem peo pep per pes pka pke pkm pko pkp pkr pks pma pme pmk pmm pmo pmp pmr pms poa poe pok pom poo pop por pos ppa ppe ppk ppm ppo ppp ppr pps pra pre prk prm pro prp prr prs ps- psa pse psk psm pso psp psr pss ra- raa rae rak ram rao rap rar ras re- rea ree rek rem reo rep rer res rke rkk rkm rko rkp rks rma rme rmm rmo rmp rmr rms roa roe rok rom roo rop ror ros rpa rpe rpk rpm rpo rpp rpr rps rra rrk rrm rrp rrr rrs rsa rse rsk rsm rso rsp rsr rss saa sae sak sam sao sap sar sas se- sea see sek sem seo sep ser ses sk- ska ske skk skm sko skp skr sks sma sme smk smm smo smp smr sms soa soe sok som soo sop sor sos spa spe spk spm spo spp spr sps sr- sra sre srk srm sro srp srr srs ss- ssa sse ssk ssm sso ssp ssr sss