a-be aaaa aaab aaac aaae aaal aaba aabb aabc aabl aabt aaca aacb aacc aace aacl aact aacu aaea aaec aala aalc aale aall aalu aata aatc aatt abaa abab abac abae abal abat abau abax abb- abba abbb abbe abbt abca abcb abcc abcl abct abec abee abel abet abla able abta abtu abua abue abul abut ac-t acaa acab acac acae acat acba acbl acca accc acce acct accu ace- acea acec acel acet acla aclc acle aclu acta actc acte actl actt actu acu- acue acul acut aeac aecb aecl aect aela aelc aeta aetc aett aetx alaa alac alae alal alat alau alb- alba albc albe albu alca alcc alce alea alec alee alet aleu alex all- alla alle alll allu alta alte altx alua alut alux alxa at-l at-t at-x ataa atab atac atae atal atat atax atca atcc atcl atea atec atee atel atex atla atle atta atte attu atua atub atuc atul auaa aube auca auce auct auel aul- aula aule aull ault aulu aut- aute auxa axal axat axce axel axle ba-x baaa baal baat baba babb babe babu bac- baca bacc bace bact bael bala balc bale ball balt balu bata batc bate batt batu bau- baul baux baxt bbau bbbb bbeb bbet bblb bcaa bcat bcbc bcca bccc bccl bcec bcet bctc bcuc beal beat beau beba bebb bebe beca becu beeb beel beet bela bele bell belt belu beta betc bete bett betu beux blaa blab blac blae blat blau blbt blcu blea bleb blee blet bleu blub blue blut btaa btcc btcl btcx btec btex btla bttb bual buat buba bubb bube bubu buca bucc buce bucu buea buel bueu bula bulb bule bull bult bulu but- buta bute butt buxa caaa caab caac caal caat caba cabe cabu cac- caca cacc cace caec caeu caex cala calc cale call calt calu calx cat- cata catb catc cate catt catu cauc caul caut caux caxa cbac cbal cbat cbax cbbc cbca cbcc cbce cbcl cbct cbcu cbea cbec cbee cbet cblb cblc cbta cbtc cbtl cbux cbxa ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccl cccu ccee ccel ccla cclc cclx cctb cctc cctl cctt ccuc ccut ccxl ceac ceal ceat ceba cebu cec- ceca cece cect ceeb ceec ceel cel- cela celc cele cell celt cet- ceta cete ceux cexe clab clat clau clea clec clee clet cleu cltb cltc club clue clut clux clxx ctab ctae ctal ctba ctca ctec ctle ctta cuau cub- cuba cubb cube cuca cucc cuce cula culb culc cule cull cult cut- cuta cutc cute cutt cxxx e-cl e-la eaba eaca eacc eaec eala ealc eale eata eate eaux eaxl ebac ebal ebba ebbc ebcc ebel ebla ebul ecaa ecac ecal ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecla eclt ect- ecta ectc ecua eeca eeea eeee eele eeta eetc eete eetu eext el-b elab elac elal elat elba elbe elbu elca elcb elce elea elec elee elet elex ella elle ellu elta elte elue elul etal etat etbc etcc etec etee etel etla etta ette ettu etua etux euba eubc eula eule exa- excl exec exel exta exte extl exul laaa laac laal laat laax laba labe labu laca lacc lace lacl lact lacu lael laet lala lale lall lalu lata latc late latt latu laub laue laul laut laux laxa laxe lbcc lcac lcat lcbc lcca lccc lcce lctl le-u leaa leal leat leau leba lebu leca lece lect leea leel leet lela lele lell lelu leta lete lett leuc lexa lext lexx llat llcc llet lleu lllc llll ltac ltae ltbl ltcc ltee lttc ltuc luau luba lube luca luce lula lule lull lulu luta lute luua luxa luxe lxxx taa- taal taat taba tabb tabc tabe tabl tabu taca tacc tace tacl tact taec tael tala talc tale tall talu talx tata tatb tate tatt tatu taua taub tauc taue taul taut tax- taxa taxe taxt tbca tbcb tbcc tbce tbta tcca tccc tccu tclx tctc tcul teac teal teat teba tebu teca tecl tect teec teel teet tel- tela telc tele tell telt telu teta tete tett tetu tetx teut texa text tlac tltx ttab ttbb tttt ttul tuae tual tuat tuba tubb tube tubu tuca tucc tuel tuet tula tule tull tulu tuta tute tutl tutt tutu tuxl txaa uabc uaca uata uatu uaua ubac ubal ubba ubbe ubet ubla uble ucal ucat ucbc ucca ucea ucel ucla ucua ucut ueba uele uell uext ulaa ulae ulbc ulcc ulea uleb ulee ulex ulla ulle ulta ultt ulua ulul utac utal utau utec utel uttu uulu uuta uuuu uxue uxul xace xacl xact xala xall xate xbee xbel xcal xcat xcbl xcel xela xexe xlet xtal xtea xtul xuxa xuxu xxxx