-er a-a a-c aaa aac aae aaf aah aak aao aar ac- aca acc ace acf ach ack aco acr aea aec aee aef aeh aek aeo aer af- afa afc afe aff afh afk afo afr aha ahc ahe ahf ahh ahk aho ahr aka akc ake akh akk ako akr aoa aoc aoe aof aoh aok aoo aor ar- ara arc are arf arh ark aro arr c-- caa cac cae caf cah cak cao car cca ccc cce ccf cch cck cco ccr ce- cea cec cee cef ceh cek ceo cer cfa cfc cfe cff cfh cfk cfo cfr ch- cha chc che chf chh chk cho chr cka ckc ckh cko co- coa coc coe cof coh cok coo cor cra crc cre crf crh crk cro crr eaa eac eae eaf eah eak eao ear ec- eca ecc ece ecf ech eck eco ecr eea eec eee eef eek eeo eer ef- efa efc efe eff efh efo efr eha ehc ehe ehf ehh eho ehr eka ekc eke ekf ekh eko ekr eo- eoa eoc eoe eof eoh eok eoo eor era erc ere erf erh erk ero err faa fac fae faf fah fak fao far fca fcc fce fcf fck fco fcr fea fec fee fef feh fek feo fer ffa ffc ffe fff ffh ffk ffo ffr fha fhc fhe fhf fhh fho fhr fka fkc fkf fkk foa foc foe fof foh fok foo for fra frc fre frf frh frk fro frr haa hac hae haf hah hak hao har hca hcc hce hcf hch hck hco hcr he- hea hec hee hef heh hek heo her hfa hfc hfe hff hfh hfk hfo hfr hha hhc hhe hhf hhh hhk hho hhr hka hkf hkh hkk hko hkr hoa hoc hoe hof hoh hok hoo hor hr- hra hrc hre hrf hrh hrk hro hrr ka- kaa kac kae kaf kah kak kao kar kca kcc kce kch kck kcr ke- kea kec kee kef keh kek keo ker kfa kfc kff kfh kfo kha khe khf khh khk kho khr kkc kke kkh kkk kkr koa koc koe kof koh kok koo kor kra krc krf krk kro krr oaa oac oae oaf oah oak oao oar oc- oca occ ocf och ock oco ocr oea oec oee oef oeh oeo oer of- ofa ofc ofe off ofo ofr oha ohc ohe ohf ohh oho ohr oka okc oke okk oko okr oo- ooa ooc oof ooh ook ooo oor or- ora orc ore orf orh ork oro orr ra- raa rac rae raf rah rak rao rar rca rcc rce rcf rch rco rcr re- rea rec ree ref reh rek reo rer rfa rfc rfe rff rfh rfk rfo rfr rh- rha rhc rhe rhf rhh rho rhr rkc rke rkf rkk rko roa roc roe rof roh rok roo ror rra rrc rrf rrh rrk rrr

a-ak a-ha a-ok aaaa aaac aaae aaaf aaah aaar aaca aacc aace aacf aach aack aaco aacr aaea aaec aafa aafc aaff aaha aahk aaka aake aaoe aaoo aara aarc aare aaro acaa acac acae acar acca accc acce accf acch acco ace- acea acec aceh acek acer acfc acfe acha ache achh acho achr acke acoa acoe acoh acor acr- acra acrc acre acro acrr aeac aeaf aeer aeka aer- aera aerc aero afaa afak afao afar afca afcc afch afee afek afer affa affc affo afka afkr afoa afoe afoo afor afr- afra afrc afre afro ahac ahah ahar ahfa ahha ahoa ahoe ahok ahor ahra ahrc ahre ahrr akaa akae akah akao akar akca akee aker akha akka akko akok akr- akra akre aoah aoca aoce aora arac arae araf arah arak arar arc- arca arce arch arco area arec aree aref areh arek areo arfa arfc arff arh- arka arke arkh arko aroa aroe aroo aror arr- arra arrc arre arrh arrk arro arrr caaa caac caaf caah cac- caca cacc cace cach cack caco cacr caec caer cafa cafc cafe caff caha cahe caka cake caor cara carc care carf cark caro carr ccaa ccac ccaf ccar ccca cccc cccf ccee ccfa ccfc ccff ccha cche cchr ccoc ccra ccrc ccre ccrf ceac cear cec- ceca cece ceco ceec cef- cefa cefc ceke ceor cer- cera cerc cere cerf cero cfaa cfac cfae cfao cfar cfca cfcf cfco cffr cfhk cfoa cfor cfra cfre chaa chac chae chaf chah chak chao char chca chce chch chea chec chee chef cheh chek cher chfa chfc chfr chha chka choc choh chok choo chor chra chrc chrf chro chrr ckac ckch ckck ckco cker ckfr ckoa ckoc ckoo ckor ckrc coak coca coce coch cock coco cofc cofe coff coha coho cok- coka coke coko coof cooh cook cor- cora corc core corf cork coro corr crac craf crar crca crcc crce crcr cre- crea crec cree creh creo crfc crkc croc croe croh crok croo cror eaaf eaca eacc each eaec eara eare earh earo ecaa ecac ecao ecar ecca eccc ecce ecco ecef ecfa ecfc ecfr echa eche echo ecka ecko eco- ecra ecrc ecrf ecrr eeca eeea eeee eefa eefe eeka eeke eeoc eera eerc eero efca efco efeo effa efke efor ehaa ehcc ehea eheh eher ehre eka- ekch ekco ekek eker ekfc ekho ekka ekoa eoka eora eore eraf erca ercc erce erch erec erer erfc erhc erke eroc eroe eroo erra errc erre erro f--k faaa faac faah faca facc face fach fack fafa fafc fafe faff fafo faha fahr fake fakh fako fara farc fare fark faro farr fcar fcca fccf fcch fcra feaf feak fear fece fech feck feek feer fefc fefe feff fefo fehr feke feko feof feoh fera ferc fere ferk fero ferr ffar ffcc ffee ffff ffrr foaf foak foar foca foce foch fock foco foer fofo fohr foke foof fook for- fora fore fork foro forr frac frae frak frcc frea free