a-ak a-be aaaa aaab aaac aaae aaal aaar aaba aabb aabc aabl aabt aaca aacb aacc aace aack aacl aacr aact aaea aaec aaka aake aala aalc aale aall aara aarc aare aart aata aatc aatk aatt abaa abab abac abae abak abal abar abat abb- abba abbb abbe abbr abbt abca abcb abcc abcl abcr abct abec abee abel aber abet abla able abra abrc abta ac-t acaa acab acac acae acar acat acba acbl acca accc acce acct ace- acea acec acek acel acer acet acke acla aclc acle aclr acr- acra acrc acre acrr acta actc acte actl actt aeac aecb aecl aect aeer aeka aela aelc aer- aera aerc aeta aetc aetr aett akaa akae akal akar akca akee akel aker akka akle akr- akra akre akte alaa alac alae alak alal alar alat alb- alba albc albe alca alcc alce alea alec alee alek aler alet alk- alka alkb alke all- alla alle alll allr alta alte arab arac arae arak aral arar arat arba arbe arc- arca arce arct area arec aree arek arel aret arka arke arla arle arr- arra arrc arre arrk arrr arrt arta artc arte artr at-l at-t ataa atab atac atae atak atal atar atat atca atcc atck atcl atcr atea atec atee atel ater atka atkt atla atle atra atrc atre atrk atta atte attr baaa baak baal baar baat baba babb babe babr bac- baca bacc bace back bact baek bael baer bak- baka bake bakl bakr bakt bala balc bale balk ball balt bar- bara barb barc bare bark barr bart bata batc bate batt bbbb bbeb bbet bblb bbrc bcaa bcar bcat bcbc bcca bccc bccl bcec bcer bcet bcra bctc beak beal bear beat beba bebb bebe beca beck beeb beek beel beer beet beka beke bela bele belk bell belt bera berc bere berk berr bert beta betc bete bett blaa blab blac blae blak blat blbt blea bleb blee blek blet blkb blrc brab brac brae brak brat brca brcb brce brea breb brec bree brek brel brer bret brka brkb brrr brtc btaa btcc btcl btec btek btla btrc btrt bttb caaa caab caac caal caat caba cabe cac- caca cacc cace cack cacr caec caer caka cake cala calc cale calk call calt cara carb carc care cark carl carr cart cat- cata catb catc cate catt cbac cbal cbar cbat cbbc cbca cbcc cbce cbcl cbcr cbct cbea cbec cbee cber cbet cbka cbkl cbkr cblb cblc cbre cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc cccl ccee ccel ccla cclc ccra ccrc ccre ccrl ccrt cctb cctc cctl cctt ceac ceal cear ceat ceba cec- ceca cece cect ceeb ceec ceel ceke cel- cela celc cele cell celt cer- cera cerc cere cerl cert cet- ceta cete ckac ckat ckbc ckbe ckck ckcl cker ckrc cktb clab clar clat clea clec clee clek cler clet clra cltb cltc crab crac crar crat crbc crca crcc crce crcr cre- crea creb crec cree cret crkc crkl crrt crtc crtl ctab ctae ctal ctba ctca ctec ctle ctrc ctrl ctta e-cl e-la eaba eaca eacc eaec eala ealc eale eara earb eare earl eart eata eate ebac ebal ebba ebbc ebbr ebcc ebel eber ebla ecaa ecac ecal ecar ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecka ecla eclt ecra ecrc ecrl ecrr ect- ecta ectc eeca eeea eeee eeka eeke eele eera eerc eeta eetc eete eka- ekab ekeb ekek eker eket ekka ekta el-b elab elac elal elar elat elba elbe elca elcb elce elea elec elee elek eler elet elka elke ella elle elra elta elte eral erat erba erbb erbe erca ercc erce ereb erec erel erer eret erke erla erle erll erra errc erre erta ertl etak etal etat etbc etbr etcc etec etee etel eter etka etla etra etre etta ette kaaa kaab kaak kaal kaar kaat kaba kabb kabc kabe kabr kacb kacc kace kacl kact kael kaer kaet kaka kakc kake kakk kakt kala kalb kalc kale kalk kall kalt kara karb kare kark karl karr kart kat- kata katb katc kate katk katl katr katt kbaa kbab kbac kbae kbak kbal kbar kbat kbba kbbb kbbc kbbe kbbk kbbl kbbr kbbt kbca kbcb kbce kbck kbcl kbcr kbct kbeb kbec kbee kbek kbel kber kbet kbkb kbkk kbkl kbkr kbla kblb kble kbll kblr kblt kbra kbrb kbrc kbre kbrk kbrl kbrt kbta kbtb kbtc kbte kbtk kbtl kbtr kbtt kcaa kcab kcac kcal kcar kcat kcba kcbc kcbk kcbl kcbr kcca kccb kccc kcck kccl kccr kcct kcea kceb kcec kcee kcel kcet kckc kckk kckl kckr kcla kclc kcle kclk kcll kclr kclt kcrc kcrr kcrt kcta kctb kctc kcte kea- keak keal kear keat keba kebb kebc kebe kebr kebt keca keck kecr keek keel keer keet keka kekb kekc keke kekl kela kele kelk kell kelt ker- kera kerb kerc kere kerk kerl kerr kert ket- keta ketc kete ketk ketr kett kkaa kkac kkal kkar kkat kkba kkbb kkbe kkbl kkbr kkbt kkcb kkck kkcl kkcr kkct kkea kkkk kklb kklc kkll kkrb kkrc kkre kkrk kkrl kkrr kkrt kktc kktk kktl klaa klab klac klak klal klar klat klbb klbc klbe klbl klbt klca klcb klcc klce klck klcl klcr klea kleb klec klee klek kler klet klka klkc klkk klkl klkr klla kllb kllc klle kllk klrc klrk klrr kltc kltk kltr kltt krab krac krae krak kral krar krat krba krbb krbe krbk krbl krbr krbt krca krcb krcc krce krcl krea kreb krec kree krek kret krka krkc krke krkk krkr krla krlc krle krlt krrb krrc krre krrk krrl krrr krrt krta krtc krtk krtr ktaa ktae ktak ktal ktar ktat ktba ktbb ktbc ktbl ktbr ktbt ktcc ktce ktck ktcl ktcr ktea ktec ktee ktek ktel ktkb ktkc ktke ktkk ktkr ktkt ktla ktlb ktlk ktlr ktlt ktrb ktrc ktre ktrk