-er a-a aaa aad aae aag aak aao aar aas ad- ada add ade adg adk ado adr ads aea aed aee aeg aek aeo aer aes ag- aga agd age agg agk ago agr ags aka akd ake akg akk ako akr aks aoa aod aoe aog aok aoo aor aos ar- ara ard are arg ark aro arr ars as- asa asd ase asg ask aso asr ass daa dad dae dag dak dao dar das dda ddd dde ddg ddk ddo ddr dds de- dea ded dee deg dek deo der des dga dgd dge dgg dgk dgr dgs dka dke dkg dkk dko dkr dks doa dod doe dog dok doo dor dos dra drd dre drg drk dro drr drs dsa dsd dse dsg dsk dso dsr dss eaa ead eae eag eak eao ear eas ed- eda edd ede edg edk edo edr eds eea eed eee eeg eek eeo eer ees ega egd ege egg ego egr egs eka ekd eke ekg eko ekr eks eo- eoa eod eoe eog eok eoo eor eos era erd ere erg erk ero err ers es- esa esd ese esg esk eso esr ess g-d gaa gad gae gag gak gao gar gas gda gdd gde gdk gdo gdr gds ge- gea ged gee geg gek geo ger ges gga ggd ggg ggo ggr ggs gka gkd gko gks goa god goe gog gok goo gor gos gra grd gre grg grk gro grr grs gsa gsd gse gsg gsk gso gsr gss ka- kaa kad kae kag kak kao kar kas kda kde kdg kdk kdo kdr kds ke- kea ked kee keg kek keo ker kes kga kgd kgo kgs kke kkk kkr kks koa kod koe kog kok koo kor kos kra krd krg krk kro krr krs ksa ksd kse ksg ksk kso ksr kss oaa oad oae oag oak oao oar oas oda odd ode odg odo odr ods oea oed oee oeg oeo oer oes oga ogd oge ogg ogo ogs oka okd oke okg okk oko okr oks oo- ooa ood oog ook ooo oor oos or- ora ord ore org ork oro orr ors os- osa osd ose osg osk oso osr oss ra- raa rad rae rag rak rao rar ras rda rdd rde rdg rdo rdr rds re- rea red ree reg rek reo rer res rga rgd rge rgg rgk rgo rgr rgs rke rkg rkk rko rks roa rod roe rog rok roo ror ros rra rrd rrg rrk rrr rrs rsa rsd rse rsg rsk rso rsr rss saa sad sae sag sak sao sar sas sda sdd sde sdg sdk sdo sdr sds se- sea sed see seg sek seo ser ses sga sgd sge sgg sgk sgo sgr sgs sk- ska skd ske skg skk sko skr sks soa sod soe sog sok soo sor sos sr- sra srd sre srg srk sro srr srs ss- ssa ssd sse ssg ssk sso ssr sss