-er a-a a-c aaa aac aae aag aak aao aar ac- aca acc ace acg ack aco acr aea aec aee aeg aek aeo aer ag- aga agc age agg agk ago agr aka akc ake akg akk ako akr aoa aoc aoe aog aok aoo aor ar- ara arc are arg ark aro arr c-- caa cac cae cag cak cao car cca ccc cce ccg cck cco ccr ce- cea cec cee ceg cek ceo cer cga cgc cge cgg cgo cgr cka ckc cko co- coa coc coe cog cok coo cor cra crc cre crg crk cro crr eaa eac eae eag eak eao ear ec- eca ecc ece ecg eck eco ecr eea eec eee eeg eek eeo eer ega egc ege egg ego egr eka ekc eke ekg eko ekr eo- eoa eoc eoe eog eok eoo eor era erc ere erg erk ero err gaa gac gae gag gak gao gar gca gcc gce gcg gck gco gcr ge- gea gec gee geg gek geo ger gga ggc ggg ggo ggr gka gko goa goc goe gog gok goo gor gra grc gre grg grk gro grr ka- kaa kac kae kag kak kao kar kca kcc kce kcg kck kcr ke- kea kec kee keg kek keo ker kga kgc kgo kkc kke kkk kkr koa koc koe kog kok koo kor kra krc krg krk kro krr oaa oac oae oag oak oao oar oc- oca occ ocg ock oco ocr oea oec oee oeg oeo oer oga ogc oge ogg ogo oka okc oke okg okk oko okr oo- ooa ooc oog ook ooo oor or- ora orc ore org ork oro orr ra- raa rac rae rag rak rao rar rca rcc rce rcg rco rcr re- rea rec ree reg rek reo rer rga rgc rge rgg rgk rgo rgr rkc rke rkg rkk rko roa roc roe rog rok roo ror rra rrc rrg rrk rrr

a-ak a-ok aaaa aaac aaae aaar aaca aacc aace aack aaco aacr aaea aaec aage aaka aake aaoe aaoo aara aarc aare aaro acaa acac acae acag acar acca accc acce acco ace- acea acec acek acer acga acgr acke acoa acoe acog acor acr- acra acrc acre acro acrr aeac aeer aega aeka aer- aera aerc aero ag-o agac agag agao agar agca agcc agce agco agea agee ager agga agge agog agoo agra agre agro akaa akae akao akar akca akee akeg aker akka akko akok akr- akra akre aoca aoce aora arac arae arag arak arar arc- arca arce arco area arec aree areg arek areo arga arge argo arka arke arko aroa aroe aroo aror arr- arra arrc arre arrg arrk arro arrr caaa caac cac- caca cacc cace cack caco cacr caec caer caga cage cagg cago cagr caka cake caor cara carc care cark caro carr ccaa ccac ccag ccar ccca cccc ccee ccga ccgc ccoc ccra ccrc ccre ccrg ceac cear cec- ceca cece ceco ceec cege cego ceke ceor cer- cera cerc cere cero cgac cgcc cgcg cger cgro ckac ckck ckco cker ckga ckgo ckoa ckoc ckoo ckor ckrc coag coak coca coce cock coco cogo cok- coka coke coko cook cor- cora corc core corg cork coro corr crac crag crar crca crcc crce crcr cre- crea crec cree creg creo crkc croc croe crok croo cror eaca eacc eaec eaga eage eara eare earo ecaa ecac ecao ecar ecca eccc ecce ecco ecka ecko eco- ecog ecra ecrc ecrr eeca eeea eeee eega eeka eeke eeoc eera eerc eerg eero egaa egae egao egar egcc egcg egcr egea egec egee eger egge eggo ego- egor egra egre eka- ekco ekek eker ekka ekoa eoka eora eore erca ercc erce erec erer erg- erga ergg ergo erke eroc eroe eroo erra errc erre erro gaar gace gack gaea gaec gaer gaga gage gagg gago gara gare garg garo garr gc-c gcaa gccc gcoa gcrg gear geca gece geck geek geer gege gegg gego geko geo- geog gera gere gero gggg goar goca goce gocr goer goga gogo goke goog gook goor gora gore gorg goro gorr grac grae grcc grce grea grec gree greg groc grog grok groo gror grrr kaaa kaag kaak kaar kacc kace kaco kaeo kaer kag- kaga kagc kage kagg kago kagr kaka kakc kake kakk kako kaoa kaoc kaog kaok kaor kara kare karg kark karo karr kcaa kcac kcar kcca kccc kcck kccr kcea kcec kcee kceg kceo kcgc kcgr kckc kckk kcko kckr kcoe kcog kcor kcrc kcrg kcro kcrr kea- keag keak kear keca kecg keck keco kecr keek keer kega kege kegg kegk kegr keka kekc keke keko keok ker- kera kerc kere kerk kero kerr kgac kgak kgcc kgce kgcr kgec kgeo kgga kggg kggo kggr kgoe kgor kgra kgrc kgre kgrg kgrk kgro kgrr kkaa kkac kkag kkar kkck kkco kkcr kkea kkeg kkgo kkgr kkkk kkoa kkoo kkor kkrc kkre kkrk kkro kkrr koac koae koak koar koca kock koea koga koge kogg kogo koka kokc koke kokk koko kokr kooc koog kook kooo koor kora korc kore korg kork koro korr krac krae krag krak krar krca krcc krce krcg krco krea krec kree krek kreo krka krkc krke krkk krko krkr kroa kroc kroe krog krok kroo kror krrc krre krrg krrk krro krrr o-eo oaer oake oara oare ocac ocak occa occc oce ocee ocga ocke ocra ocre ocro ocrr oec- oeca oecc oeec oera oere ogae ogar ogea ogee oger ogge ogoa ogog ogra ogre ogro okak oker okgo okka okko okok okor okra okre okro ooaa ooak oocr ooer oooo oora oore orac orae orak orao orar orca orce orco ore- orea orec oreg orek oreo orer orga orge orgo orka orke orko oro- oroe orok oror orra orro raag raak rac- raca racc race rack raco raec raeg raer raga rage ragg rago raka rake rakk raoc raok rara rare rark raro rcac