a-be aaaa aaab aaac aaad aaae aaal aaba aabb aabc aabd aabl aabt aaca aacb aacc aacd aace aacl aact aacu aada aadc aade aadt aadu aaea aaec aala aalc aald aale aall aalu aata aatc aatt abaa abab abac abad abae abal abat abau abb- abba abbb abbe abbt abca abcb abcc abcd abcl abct abda abdu abec abed abee abel abet abla able abta abtu abua abud abue abul abut ac-t acaa acab acac acad acae acat acba acbl acca accc accd acce acct accu acda acdb acdc acde acdt ace- acea acec aced acel acet acla aclc acle aclu acta actc acte actl actt actu acu- acue acul acut adaa adab adac adad adae adal adat adba adbc adcc adda addc addd adde addl addu adea adeb adee adel adet adle adta adua adub adue aeac aecb aecl aect aede aedt aela aelc aeta aetc aett alaa alac alad alae alal alat alau alb- alba albc albe albu alca alcc alce ald- alda alde aldl alea alec aled alee alet aleu all- alla alle alll allu alta alte alua alut at-l at-t ataa atab atac atad atae atal atat atca atcc atcl atdt atea atec ated atee atel atla atle atta atte attu atua atub atuc atul auaa aube auca auce auct audc aude auel aul- aula auld aule aull ault aulu aut- aute baaa baad baal baat baba babb babe babu bac- baca bacc bace bact bada badb badd bade badu baed bael bala balc bald bale ball balt balu bata batc bate batt batu bau- baud baul bbad bbau bbbb bbdd bbeb bbet bblb bcaa bcat bcbc bcca bccc bccl bcda bcde bcec bcet bctc bcuc bdbc bddc bdle bead beal beat beau beba bebb bebe beca becu beda bede bedl bedu beeb beed beel beet bela beld bele bell belt belu beta betc bete bett betu blaa blab blac blad blae blat blau blbt blcu bldc blea bleb bled blee blet bleu blub blud blue blut btaa btcc btcl btdt btec btla bttb buad bual buat buba bubb bube bubu buca bucc buce bucu buda budb budd bude budl budu buea buel bueu bula bulb buld bule bull bult bulu but- buta bute butt c-cd caaa caab caac caal caat caba cabe cabu cac- caca cacc cace cada cadc cadd cade cadu caec caeu cala calc cald cale call calt calu cat- cata catb catc catd cate catt catu cauc caul caut cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbcu cbdb cbdc cbea cbec cbee cbet cblb cblc cbta cbtc cbtl ccaa ccab ccac ccad ccat ccba ccbc ccca cccb cccc cccl cccu ccdc cced ccee ccel ccla cclc cctb cctc cctl cctt ccuc ccut cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceat ceba cebu cec- ceca cece cect ceda cedd cede cedt cedu ceeb ceec ceel cel- cela celc cele cell celt cet- ceta cete clab clad clat clau clcd cldc clea clec cled clee clet cleu cltb cltc club clud clue clut ctab ctae ctal ctba ctca ctec ctle ctta cuau cub- cuba cubb cube cuca cucc cuce cuda cude cued cula culb culc culd cule cull cult cut- cuta cutc cute cutt daab daad daae daal daau daba dabb dabt dabu daca dace dact dada dade dadu daeb daeu dala dale dall dalt dalu data date datt datu daub daud daue daut dbcc dbtt dcbc dcca dccb dccc dccl dcct dccu dcdb dctc dddd ddlc ddub deac dead deae deal deau deba debe debt debu dec- deca decc decd dece decl dect deda dedd dede dedu deeb deed deel deet dela deld dele dell delt deta dete deua deue deul deut dlab dlbd dtaa dtac dtcc dted dtla dtle duaa duab duad dual duat dub- duba dubb dubc dube dubu duca duce duct duda dudd dude dudu duel duet dula dulc dule dull dult dulu duta dute duul duut 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 ebul ecaa ecac ecad ecal ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecdc ecdl eced ecla eclt ect- ecta ectc ecua edac edad edca edda eddc edde ede- edea edel edla edle edta educ eeca eede eedu eeea eeee eele eeta eetc eete eetu el-b elab elac elad elal elat elba elbe elbu elca elcb elce elda elde elea elec eled elee elet ella elle ellu elta elte elue elul etal etat etbc etcc etec etee etel etla etta ette ettu etua euba eubc eucd eude eula eule laaa laac laad laal laat laba labe labu laca lacc lace lacl lact lacu lada ladd lade ladu lael laet lala lald lale lall lalu lata latc latd late latt latu laub laud laue laul laut lbcc lcac lcad lcat lcbc lcca lccc lcce lcdd lctl le-u leaa lead leal leat leau leba lebd lebu leca lece lect leda lede ledt leea leed leel leet lela lele lell lelu leta lete lett leuc leud llat llcc lldb lldc llet lleu lllc llll llud ltac ltae ltbl ltcc ltee lttc ltuc luau luba lube luca luce luda ludd lude lued lula lule lull lulu luta lute luua taa- taal taat taba tabb tabc tabe tabl tabu taca tacc tace tacl tact tada tade taec tael tala talc tale tall talu tata tatb tate tatt tatu taua taub tauc taue taul taut tbca tbcb tbcc tbcd tbce tbta tcad tcca tccc tccu tcdd tctc tcul tdac tdal tddb teac tead teal teat teba tebu teca tecl tect teda tedd tede teec teed teel teet tel- tela telc teld tele tell telt telu teta tete tett tetu teut tlac ttab ttbb tttt ttul tuae tual tuat tuba tubb tube tubu tuca tucc tude tudu tuel tuet tula tule tull tulu tuta tute tutl tutt tutu uabc uaca uald uata uatu uaua ubac ubal ubba ubbe ubet ubla uble ubud ucad ucal ucat ucbc ucca ucdc