a-ak a-be aaaa aaab aaac aaae aaaf aaal aaba aabb aabc aabl aabt aaca aacb aacc aace aacf aack aacl aact aaea aaec aafa aafb aafc aaff aafl aaka aake aala aalc aale aall aata aatc aatf aatk aatt abaa abab abac abae abaf abak abal abat abb- abba abbb abbe abbt abca abcb abcc abcf abcl abct abec abee abel abet abff abla able abta ac-t acaa acab acac acae acat acba acbl acca accc acce accf acct ace- acea acec acek acel acet acfc acfe acfl acft acke acla aclc acle acta actc acte actf actl actt aeac aeaf aecb aecl aect aeka aela aelc aeta aetc aetf aett afaa afak afat afca afcb afcc afee afek afel afet affa affc afft afka afla aflc afle afta aftc afte akaa akae akal akca akee akel akka akle akte alaa alac alae alak alal alat alb- alba albc albe alca alcc alce alea alec alee alef alek alet alfa alfe alk- alka alkb alke all- alla alle alll alta alte at-l at-t ataa atab atac atae atak atal atat atca atcc atcf atck atcl atea atec atee atef atel atfb atfc atfe atka atkt atla atle atta atte baaa baaf baak baal baat baba babb babe bac- baca bacc bace back bact baek bael bafc baff baft bak- baka bake bakl bakt bala balc bale balf balk ball balt bata batc bate batf batt bbbb bbeb bbet bbfc bblb bcaa bcat bcbc bcca bccc bccl bcec bcet bcfc bctc beaf beak beal beat beba bebb bebe beca beck beeb beef beek beel beet befa befe beff beft beka beke bela bele belk bell belt beta betc bete bett bfca bffl bfta bftt blaa blab blac blae blak blat blbt blea bleb blee blek blet blfc blkb btaa btaf btcc btcl btec btek btfc btla bttb caaa caab caac caaf caal caat caba cabe cabf cac- caca cacc cace cack caec cafa cafb cafc cafe caff cafl caka cake cala calc cale calf calk call calt cat- cata catb catc cate catf catt cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbea cbec cbee cbef cbet cbfb cbfc cbka cbkl cblb cblc cbta cbtc cbtf cbtl ccaa ccab ccac ccaf ccat ccba ccbc ccca cccb cccc cccf cccl ccee ccel ccfa ccfc ccff ccfl ccla cclc cctb cctc cctl cctt ceac ceal ceat ceba cec- ceca cece cect ceeb ceec ceel cef- cefa cefc ceke cel- cela celc cele celf cell celt cet- ceta cete cfaa cfab cfac cfae cfbc cfbt cfca cfcb cfcf cfcl cffb cfta cftc cfte cftk cftl ckac ckat ckbc ckbe ckck ckcl cklf cktb clab claf clat clea clec clee clef clek clet cltb cltc ctab ctae ctal ctba ctca ctcf ctec ctfc ctle ctta e-cl e-la eaaf eaba eaca eacc eaec eafb eala ealc eale eata eate ebac ebal ebba ebbc ebcc ebel ebfc ebla ecaa ecac ecal ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecef ecfa ecfc ecka ecla eclt ect- ecta ectc ectf eeca eeea eeee eefa eefe eefl eeka eeke eele eeta eetc eete efab efca efet effa efke efla eft- efta eka- ekab ekeb ekek eket ekfc ekka ekta el-b elab elac elal elat elba elbe elca elcb elce elea elec elee elef elek elet elfa elfc elfe elft elka elke ella elle elta elte etak etal etat etbc etcc etec etee etel etfa etfb etfc etfe etka etla etta ette f--k faaa faac faba fabe faca facc face fack fact faeb fafa fafc fafe faff fake fakt fala falc fale falk fall falt fata fatc fate fatf fatt fbla fble fcab fcal fcat fcba fcca fccf feaf feak feal feat feba fece feck fect feeb feek feel feet fefc fefe feff feke fela fele felf felk fell felt feta fete fett ffcc ffee ffff fftf fkab flab flac flae flak flat flcl flea flee flet fltk ft-c ft-l ftea ftfc ftlb kaaa kaab kaaf kaak kaal kaat kaba kabb kabc kabe kabf kacb kacc kace kacl kact kael kaet kafa kafc kafe kaff kaka kakc kake kakk kakt kala kalb kalc kale kalf kalk kall kalt kat- kata katb katc kate katf katk katl katt kbaa kbab kbac kbae kbak kbal kbat kbba kbbb kbbc kbbe kbbf kbbk kbbl kbbt kbca kbcb kbce kbck kbcl kbct kbeb kbec kbee kbef kbek kbel kbet kbfb kbfc kbff kbfk kbfl kbft kbkb kbkf kbkk kbkl kbla kblb kble kblf kbll kblt kbta kbtb kbtc kbte kbtf kbtk kbtl kbtt kcaa kcab kcac kcal kcat kcba kcbc kcbf kcbk kcbl kcca kccb kccc kcck kccl kcct kcea kceb kcec kcee kcel kcet kcfa kcfb kcfc kcfl kcft kckc kckf kckk kckl kcla kclc kcle kclf kclk kcll kclt kcta kctb kctc kcte kea- keak keal keat keba kebb kebc kebe kebt keca keck keef keek keel keet kefa kefb kefc keff keft keka kekb kekc keke kekl kela kele kelf kelk kell kelt ket- keta ketc kete ketf ketk kett kfab kfac kfal kfat kfbc kfbk kfbt kfcf kfeb kfel kffa kffb kfff kffk kfka kfkb kfla kflb kflc kflf kfll kflt kfta kftc kfte kftk kftt kkaa kkac kkal kkat kkba kkbb kkbe kkbl kkbt kkcb kkck kkcl kkct kkea kkft kkkk kklb kklc kklf kkll kktc kktk kktl klaa klab klac klaf klak klal klat klbb klbc klbe klbf klbl klbt klca klcb klcc klce klck klcl klea kleb klec klee klef klek klet klfa klfc klfe klff klft klka klkc klkk klkl klla kllb kllc klle kllk kltc kltf kltk kltt ktaa ktae ktak ktal ktat ktba ktbb ktbc ktbl ktbt ktcc ktce ktck ktcl ktea ktec ktee ktek ktel ktfb ktfc ktfl ktkb ktkc ktke ktkk ktkt ktla ktlb ktlf ktlk ktlt kttc kttf kttk kttt laaa laac laak laal laat laba labe laca lacc lace lack lacl lact lael laet lafb lafc lafe laff laft laka lake lala lale lall lata latc late latt lbcc lcac lcat lcbc lcca lccc lcce lcfc lctl leaa