-al -er a-a a-c aaa aac aae aaf aak aal aar ac- aca acc ace acf ack acl acr aea aec aee aef aek ael aer af- afa afc afe aff afk afl afr aka akc ake akk akl akr al- ala alc ale alf alk all alr ar- ara arc are arf ark arl arr c-- caa cac cae caf cak cal car cca ccc cce ccf cck ccl ccr ce- cea cec cee cef cek cel cer cfa cfc cfe cff cfk cfl cfr cka ckc cl- cla clc cle clf clk cll clr cra crc cre crf crk crl crr eaa eac eae eaf eak eal ear ec- eca ecc ece ecf eck ecl ecr eea eec eee eef eek eel eer ef- efa efc efe eff efl efr eka ekc eke ekf ekl ekr ela elc ele elf elk ell elr era erc ere erf erk erl err faa fac fae faf fak fal far fca fcc fce fcf fck fcl fcr fea fec fee fef fek fel fer ffa ffc ffe fff ffk ffl ffr fka fkc fkf fkk fkl fla flc fle flf fll flr fra frc fre frf frk frl frr ka- kaa kac kae kaf kak kal kar kca kcc kce kck kcl kcr ke- kea kec kee kef kek kel ker kfa kfc kff kkc kke kkk kkl kkr kl- kla klc klf klr kra krc krf krk krl krr la- laa lac lae laf lak lal lar lca lcc lce lcf lck lcl lcr lea lec lee lef lek lel ler lfa lfc lfe lff lfk lfl lfr lka lkl lkr lla llc lle llf llk lll llr lra lrc lrf lrk lrr ra- raa rac rae raf rak ral rar rca rcc rce rcf rcl rcr re- rea rec ree ref rek rel rer rfa rfc rfe rff rfk rfl rfr rkc rke rkf rkk rla rlc rle rlf rll rlr rra rrc rrf rrk rrl rrr

a-ak aaaa aaac aaae aaaf aaal aaar aaca aacc aace aacf aack aacl aacr aaea aaec aafa aafc aaff aafl aaka aake aala aalc aale aall aara aarc aare acaa acac acae acar acca accc acce accf ace- acea acec acek acel acer acfc acfe acfl acke acla aclc acle aclr acr- acra acrc acre acrr aeac aeaf aecl aeer aeka aela aelc aer- aera aerc afaa afak afar afca afcc afee afek afel afer affa affc afka afkr afla aflc afle afr- afra afrc afre akaa akae akal akar akca akee akel aker akka akle akr- akra akre alaa alac alae alak alal alar alca alcc alce alea alec alee alef alek aler alfa alfe alk- alka alke all- alla alle alll allr arac arae araf arak aral arar arc- arca arce area arec aree aref arek arel arfa arfc arff arka arke arla arle arr- arra arrc arre arrk arrr caaa caac caaf caal cac- caca cacc cace cack cacr caec caer cafa cafc cafe caff cafl caka cake cala calc cale calf calk call cara carc care carf cark carl carr ccaa ccac ccaf ccar ccca cccc cccf cccl ccee ccel ccfa ccfc ccff ccfl ccla cclc ccra ccrc ccre ccrf ccrl ceac ceal cear cec- ceca cece ceec ceel cef- cefa cefc ceke cel- cela celc cele celf cell cer- cera cerc cere cerf cerl cfaa cfac cfae cfar cfca cfcf cfcl cffr cfra cfre ckac ckck ckcl cker ckfr cklf ckrc claf clar clea clec clee clef clek cler clra crac craf crar crca crcc crce crcr cre- crea crec cree crfc crfl crkc crkl crlf e-cl e-la eaaf eaca eacc eaec eala ealc eale eara eare earl ecaa ecac ecal ecar ecca eccc ecce eccl ecef ecfa ecfc ecfr ecka ecla ecra ecrc ecrf ecrl ecrr eeca eeea eeee eefa eefe eefl eeka eeke eele eera eerc efca effa efke efla eka- ekek eker ekfc ekka elac elal elar elca elce elea elec elee elef elek eler elfa elfc elfe elka elke ella elle elra eraf eral erca ercc erce erec erel erer erfc erke erla erle erll erra errc erre f--k faaa faac faca facc face fack fafa fafc fafe faff fake fala falc fale falk fall fara farc fare fark farl farr fcal fcar fcca fccf fcra feaf feak feal fear fece feck feek feel feer fefc fefe feff feke fela fele felf felk fell fera ferc fere ferk ferr ffar ffcc ffee ffff ffrr flac flae flak flcl flea flee fler frac frae frak frcc frea free frfc frla kaaa kaaf kaak kaal kaar kacc kace kacl kael kaer kafa kafc kafe kaff kafr kaka kakc kake kakk kala kalc kale kalf kalk kall kara kare karf kark karl karr kcaa kcac kcal kcar kcca kccc kcck kccl kccr kcea kcec kcee kcel kcfa kcfc kcfl kckc kckf kckk kckl kckr kcla kclc kcle kclf kclk kcll kclr kcrc kcrr kea- keak keal kear keca keck kecr keef keek keel keer kefa kefc keff kefr keka kekc keke kekl kela kele kelf kelk kell ker- kera kerc kere kerf kerk kerl kerr kfac kfal kfar kfcf kfcr kfel kfer kffa kfff kffk kfka kfla kflc kflf kfll kfra kfrc kfre kfrr kkaa kkac kkal kkar kkck kkcl kkcr kkea kkfr kkkk kklc kklf kkll kkrc kkre kkrf kkrk kkrl kkrr klaa klac klaf klak klal klar klca klcc klce klck klcl klcr klea klec klee klef klek kler klfa klfc klfe klff klka klkc klkk klkl klkr klla kllc klle kllk klrc klrf klrk klrr krac krae krak kral krar krca krcc krce krcl krea krec kree kref krek krfc krfe krff krka krkc krke krkk krkr krla krlc krle krlf krrc krre krrf krrk krrl krrr laaa laac laak laal laar laca lacc lace lack lacl lael laer lafc lafe laff laka lake lala lale lall lara larc lare larf lark larr lcac lcca lccc lcce lcer lcfc lcfr lcra lcrl leaa leaf leak leal lear leca lece leck leea leef leek