a-be aaaa aaab aaac aaae aaal aaba aabb aabc aabl aabt aaca aacb aacc aace aacl aaco aact aacu aaea aaec aala aalc aale aall aalo aalu aaoe aaoo aata aatc aatt abaa abab abac abae abal abat abau abb- abba abbb abbe abbo abbt abca abcb abcc abcl abct abec abee abel abet abla able ablo aboa abob abol aboo abot abou abta abtu abua abue abul abut ac-t acaa acab acac acae acat acba acbl acca accc acce acco acct accu ace- acea acec acel acet acla aclc acle aclu acoa acoe acol acot acou acta actc acte actl acto actt actu acu- acue acul acuo acut aeac aecb aecl aect aela aelc aeta aetc aeto aett alaa alac alae alal alao alat alau alb- alba albc albe albo albu alca alcc alce alco alea alec alee aleo alet aleu all- alla alle alll allo allu aloa aloc aloe alol aloo alot alou alta alte alto alua alut aoba aoca aoce aoeu aola aole aotc aoul aout at-l at-t ataa atab atac atae atal atat atca atcc atcl atco atea atec atee atel ateo atla atle atlo atob atoc atoe atol atot atta atte atto attu atua atub atuc atul auaa aube auca auce auct auel aul- aula aule aull aulo ault aulu auol aut- aute auto baaa baal baat baba babb babe babo babu bac- baca bacc bace baco bact bael bala balc bale ball balo balt balu baol bata batc bate bato batt batu bau- baul bbau bbbb bbeb bbet bblb bcaa bcat bcbc bcca bccc bccl bcec bcet bctc bcuc beal beat beau beba bebb bebe bebo beca becu beeb beel beet bela bele bell belo belt belu beo- beot beta betc bete beto bett betu blaa blab blac blae blat blau blbt blcu blea bleb blee bleo blet bleu blob bloc bloo blot blou blub blue blut boab boac boal boat boba bobb bobe bobo bobu boca boce boco bocu boea boec boee boel boeo boet bola bole boll bolo bolt bolu boob booc booe bool boot bota botb bote boto bott boua boue boul bout btaa btcc btcl btec btla btob bttb bual buat buba bubb bube bubo bubu buca bucc buce buco bucu buea buel bueu bula bulb bule bull bult bulu buol but- buta bute buto butt c-bo caaa caab caac caal caat caba cabe cabo cabu cac- caca cacc cace caco caec caeu cala calc cale call calo calt calu caol cat- cata catb catc cate cato catt catu cauc caul cauo caut cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbcu cbea cbec cbee cbet cblb cblc cbol cbot cbta cbtc cbtl ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccl cccu ccee ccel ccla cclc ccob ccoc cctb cctc cctl cctt ccuc ccut ceac ceal ceat ceba cebu cec- ceca cece ceco cect ceeb ceec ceel cel- cela celc cele cell celo celt ceol ceou cet- ceta cete ceto clab clat clau clea clec clee cleo clet cleu clob cloe cloo clot clou cltb cltc club clue clut coal coat coba cobb cobe cobo cobu coca coce coco coct cocu coel col- cola colb cole coll colo colt colu coob cool coot cota cotb cotc cote coto cott cotu coua coub coue coul cout ctab ctae ctal ctba ctca ctec ctle ctol ctot ctta cuau cub- cuba cubb cube cuca cucc cuce cula culb culc cule cull culo cult cut- cuta cutc cute cuto cutt e-cl e-la eaba eaca eacc eaec eala ealc eale eata eate ebac ebal ebba ebbc ebbo ebcc ebel ebla eboe ebol eboo ebul ecaa ecac ecal ecao ecat ecbc ecbe ecca eccb eccc ecce eccl ecco ecct ecla eclt eco- ecol ecot ecou ect- ecta ectc ecto ecua eeca eeea eeee eele eeoc eeta eetc eete eetu el-b elab elac elal elat elba elbe elbo elbu elca elcb elce elco elea elec elee eleo elet ella elle ello ellu elta elte elto elue elul eola eole eolo eota eotc eoto etal etat etbc etcc etco etec etee etel etla etoe etta ette etto ettu etua euba eubc eula eule laaa laac laal laat laba labe labo labu laca lacc lace lacl laco lact lacu lael laet lala lale lall lalo lalu laou lata latc late lato latt latu laub laue laul laut lbcc lcac lcat lcbc lcca lccc lcce lctl lcto le-u leaa leal leao leat leau leba lebo lebu leca lece leco lect leea leel leet lela lele lell lelo lelu leoc leou leta lete leto lett leuc llao llat llcc llet lleu lllc llll lloa lloc lloo loac loat lob- loba lobb lobe lobo loca locc loce loco locu loeb loeu lola lole loll lolo loob looc looe lool loot lota lote lotl loto lott loue loul lout louu ltac ltae ltbl ltcc ltee lttc ltuc luau luba lube luca luce lula lule lull lulu luta lute luua o-eo oaau oall oate obal obba obbo obea obec obel obet obla oble oblu oboe obol obot ocab ocac ocal ocat ocbc occa occc occt oce ocee ocet oclc oct- octa octe octo ocul oec- oeca oecc oeec oela oele oeta olac olat olba olbo olca olcc ole- olea oleo olet olla olle ollo olot olta oltu ooaa ooba oobe oola oolo oooo ootb otac otcl otea otee oto- otoe otoo otta otte otto ottu ouac ouat oucc ouea oula oule oulu out- outa outb oute outo ouu- taa- taal taat taba tabb tabc tabe tabl tabo tabu taca tacc tace tacl taco tact taec tael tala talc tale tall talo talu taoa taou tata tatb tate tato tatt tatu taua taub tauc taue taul taut tbca tbcb tbcc tbce tbta tcca tccc tccu tctc tcul teac teal teat teba tebo tebu teca tecl teco tect teec teel teet tel- tela telc tele tell telo telt telu teta tete teto tett tetu teut tlac tlco toab toal toat toau toba tobe tobo tobt tobu toca toce toco toea toee toet tol-