-er a-a aaa aad aae aak aam aao aar aas ad- ada add ade adk adm ado adr ads aea aed aee aek aem aeo aer aes aka akd ake akk akm ako akr aks ama amd ame amk amm amo amr ams aoa aod aoe aok aom aoo aor aos ar- ara ard are ark arm aro arr ars as- asa asd ase ask asm aso asr ass daa dad dae dak dam dao dar das dda ddd dde ddk ddm ddo ddr dds de- dea ded dee dek dem deo der des dka dke dkk dkm dko dkr dks dma dmd dme dmk dmm dmo dmr dms doa dod doe dok dom doo dor dos dra drd dre drk drm dro drr drs dsa dsd dse dsk dsm dso dsr dss eaa ead eae eak eam eao ear eas ed- eda edd ede edk edm edo edr eds eea eed eee eek eem eeo eer ees eka ekd eke eko ekr eks em- ema emd eme emk emm emo emr ems eo- eoa eod eoe eok eom eoo eor eos era erd ere erk erm ero err ers es- esa esd ese esk esm eso esr ess ka- kaa kad kae kak kam kao kar kas kda kde kdk kdm kdo kdr kds ke- kea ked kee kek kem keo ker kes kke kkk kkm kkr kks kma kmd kme kmk kmm kmo kms koa kod koe kok kom koo kor kos kra krd krk kro krr krs ksa ksd kse ksk ksm kso ksr kss m-o m-r maa mad mae mak mam mao mar mas mda mdd mde mdk mdm mdo mdr mds mea med mee mek mem meo mer mes mka mkd mke mkk mkm mko mkr mks mma mmd mme mmk mmm mmo mmr mms moa mod moe mok mom moo mor mos mra mrd mre mrk mrm mro mrr mrs msa msd mse msk msm mso msr mss oaa oad oae oak oam oao oar oas oda odd ode odm odo odr ods oea oed oee oem oeo oer oes oka okd oke okk oko okr oks om- oma omd ome omm omo omr oms oo- ooa ood ook oom ooo oor oos or- ora ord ore ork orm oro orr ors os- osa osd ose osk osm oso osr oss ra- raa rad rae rak ram rao rar ras rda rdd rde rdm rdo rdr rds re- rea red ree rek rem reo rer res rke rkk rkm rko rks rma rmd rme rmm rmo rmr rms roa rod roe rok rom roo ror ros rra rrd rrk rrm rrr rrs rsa rsd rse rsk rsm rso rsr rss saa sad sae sak sam sao sar sas sda sdd sde sdk sdm sdo sdr sds se- sea sed see sek sem seo ser ses sk- ska skd ske skk skm sko skr sks sma smd sme smk smm smo smr sms soa sod soe sok som soo sor sos sr- sra srd sre srk srm sro srr srs ss- ssa ssd sse ssk ssm sso ssr sss