a-ak a-be aaaa aaab aaac aaad aaae aaal aaba aabb aabc aabd aabl aabt aaca aacb aacc aacd aace aack aacl aact aada aadc aade aadt aaea aaec aaka aake aala aalc aald aale aall aata aatc aatk aatt abaa abab abac abad abae abak abal abat abb- abba abbb abbe abbt abca abcb abcc abcd abcl abct abda abec abed abee abel abet abla able abta ac-t acaa acab acac acad acae acat acba acbl acca accc accd acce acct acda acdb acdc acde acdt ace- acea acec aced acek acel acet ackd acke acla aclc acle acta actc acte actl actt adaa adab adac adad adae adak adal adat adba adbc adcc adda addc addd adde addl adea adeb adee adel adet adle adta aeac aecb aecl aect aede aedt aeka aela aelc aeta aetc aett akaa akae akal akca aked akee akel akka akle akte alaa alac alad alae alak alal alat alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alek alet alk- alka alkb alkd alke all- alla alle alll alta alte at-l at-t ataa atab atac atad atae atak atal atat atca atcc atck atcl atdt atea atec ated atee atel atka atkt atla atle atta atte baaa baad baak baal baat baba babb babe bac- baca bacc bace back bact bada badb badd bade baed baek bael bak- baka bake bakl bakt bala balc bald bale balk ball balt bata batc bate batt bbad bbbb bbdd bbeb bbet bblb bcaa bcat bcbc bcca bccc bccl bcda bcde bcec bcet bctc bdbc bddc bdle bead beak beal beat beba bebb bebe beca beck beda bede bedl beeb beed beek beel beet beka beke bela beld bele belk bell belt beta betc bete bett blaa blab blac blad blae blak blat blbt bldc blea bleb bled blee blek blet blkb blkd btaa btcc btcl btdt btec btek btla bttb c-cd caaa caab caac caal caat caba cabe cac- caca cacc cace cack cada cadc cadd cade caec caka cake cala calc cald cale calk call calt cat- cata catb catc catd cate catt cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbdb cbdc cbea cbec cbee cbet cbka cbkl cblb cblc cbta cbtc cbtl ccaa ccab ccac ccad ccat ccba ccbc ccca cccb cccc cccl ccdc cced ccee ccel ccla cclc cctb cctc cctl cctt cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceat ceba cec- ceca cece cect ceda cedd cede cedt ceeb ceec ceel ceke cel- cela celc cele cell celt cet- ceta cete ckac ckat ckbc ckbe ckck ckcl cktb clab clad clat clcd cldc clea clec cled clee clek clet cltb cltc ctab ctae ctal ctba ctca ctec ctle ctta daab daad daae daal daba dabb dabt daca dace dact dada dade daeb daka dake dala dale dalk dall dalt data date datt dbcc dbtt dcbc dcca dccb dccc dccl dcct dcdb dctc dddd ddlc deac dead deae deak deal deba debe debt dec- deca decc decd dece deck decl dect deda dedd dede deeb deed deek deel deet dek- deka deke dela deld dele delk dell delt deta dete detk dkba dkdc dlab dlbd dtaa dtac dtcc dted dtek dtla dtle e-cl e-la eaba eaca eacc eada eadb eadd eaec eala ealc eald eale eata eate ebac ebal ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecdc ecdl eced ecka ecla eclt ect- ecta ectc edac edad edca edda eddc edde ede- edea edel edla edle edta eeca eede eeea eeee eeka eeke eele eeta eetc eete eka- ekab ekeb eked ekek eket ekka ekta el-b elab elac elad elal elat elba elbe elca elcb elce elda elde elea elec eled elee elek elet elka elke ella elle elta elte etak etal etat etbc etcc etec etee etel etka etla etta ette kaaa kaab kaak kaal kaat kaba kabb kabc kabd kabe kacb kacc kacd kace kacl kact kad- kada kadd kade kadl kadt kael kaet kaka kakc kake kakk kakt kala kalb kalc kald kale kalk kall kalt kat- kata katb katc katd kate katk katl katt kbaa kbab kbac kbad kbae kbak kbal kbat kbba kbbb kbbc kbbd kbbe kbbk kbbl kbbt kbca kbcb kbce kbck kbcl kbct kbdb kbde kbdl kbeb kbec kbed kbee kbek kbel kbet kbkb kbkk kbkl kbla kblb kbld kble kbll kblt kbta kbtb kbtc kbte kbtk kbtl kbtt kcaa kcab kcac kcad kcal kcat kcba kcbc kcbd kcbk kcbl kcca kccb kccc kccd kcck kccl kcct kcda kcdc kcdd kcea kceb kcec kced kcee kcel kcet kckc kckk kckl kcla kclc kcle kclk kcll kclt kcta kctb kctc kcte kdaa kdab kdac kdad kdae kdak kdal kdat kdbb kdbl kdca kdcc kdcd kdce kddb kddc kddd kddk kddl kdeb kdec kdel kdet kdka kdkb kdkd kdkk kdkt kdla kdlb kdlc kdld kdll kdta kdtd kea- kead keak keal keat keba kebb kebc kebe kebt keca keck keda kedb kedc kedd kede kedt keed keek keel keet keka kekb kekc keke kekl kela keld kele kelk kell kelt ket- keta ketc ketd kete ketk kett kkaa kkac kkal kkat kkba kkbb kkbd kkbe kkbl kkbt kkcb kkcd kkck kkcl kkct kkda kkdc kkdd kkdl kkdt kkea kked kkkk kklb kklc kkld kkll kktc kktk kktl klaa klab klac klad klak klal klat klbb klbc klbd klbe klbl klbt klca klcb klcc klcd klce klck klcl kldc kldd klde klea kleb klec kled klee klek klet klka klkc klkk klkl klla kllb kllc klle kllk kltc kltd kltk kltt ktaa ktae ktak ktal ktat ktba ktbb ktbc ktbl ktbt ktcc ktce ktck ktcl ktdb ktdc ktdd ktde ktdk ktea ktec kted ktee ktek ktel ktkb ktkc ktke ktkk ktkt ktla ktlb ktlk ktlt kttc kttk kttt laaa laac laad laak laal laat laba labe laca lacc lace lack lacl lact lada ladd lade lael laet laka lake lala lald lale lall lata