a-be aaaa aaab aaac aaae aaal aaar aaba aabb aabc aabl aabt aaca aacb aacc aace aacl aacr aact aacu aaea aaec aala aalc aale aall aalu aara aarc aare aart aaru aata aatc aatt abaa abab abac abae abal abar abat abau abb- abba abbb abbe abbr abbt abca abcb abcc abcl abcr abct abec abee abel aber abet abla able abra abrc abta abtu abua abue abul abut ac-t acaa acab acac acae acar acat acba acbl acca accc acce acct accu ace- acea acec acel acer acet acla aclc acle aclr aclu acr- acra acrc acre acrr acta actc acte actl actt actu acu- acue acul acur acut aeac aecb aecl aect aeer aela aelc aer- aera aerc aeta aetc aetr aett alaa alac alae alal alar alat alau alb- alba albc albe albu alca alcc alce alea alec alee aler alet aleu all- alla alle alll allr allu alta alte alua alur alut arab arac arae aral arar arat arau arba arbe arc- arca arce arct area arec aree arel aret areu arla arle arr- arra arrc arre arrr arrt arru arta artc arte artr arua arub arue arul arut at-l at-t ataa atab atac atae atal atar atat atca atcc atcl atcr atea atec atee atel ater atla atle atra atrc atre atru atta atte attr attu atua atub atuc atul atur auaa aube auca auce auct auel auer aul- aula aule aull ault aulu aur- aura aure aut- aute baaa baal baar baat baba babb babe babr babu bac- baca bacc bace bact bael baer bala balc bale ball balt balu bar- bara barb barc bare barr bart baru bata batc bate batt batu bau- baul baur bbau bbbb bbeb bbet bblb bbrc bcaa bcar bcat bcbc bcca bccc bccl bcec bcer bcet bcra bcru bctc bcuc beal bear beat beau beba bebb bebe beca becu beeb beel beer beet bela bele bell belt belu bera berc bere berr bert beru beta betc bete bett betu beur blaa blab blac blae blat blau blbt blcu blea bleb blee blet bleu blrc blub blue blur blut brab brac brae brat brau brca brcb brce brea breb brec bree brel brer bret brrr brtc bruc brue brut btaa btcc btcl btec btla btrc btrt bttb bual buar buat buba bubb bube bubu buca bucc buce bucu buea buel buer bueu bula bulb bule bull bult bulu bur- bura burb bure burl burr burt buru but- buta bute butt caaa caab caac caal caat caba cabe cabu cac- caca cacc cace cacr caec caer caeu cala calc cale call calt calu cara carb carc care carl carr cart cat- cata catb catc cate catt catu cauc caul caut cbac cbal cbar cbat cbbc cbca cbcc cbce cbcl cbcr cbct cbcu cbea cbec cbee cber cbet cblb cblc cbre cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc cccl cccu ccee ccel ccla cclc ccra ccrc ccre ccrl ccrt cctb cctc cctl cctt ccuc ccut ceac ceal cear ceat ceba cebu cec- ceca cece cect ceeb ceec ceel cel- cela celc cele cell celt cer- cera cerc cere cerl cert cet- ceta cete clab clar clat clau clea clec clee cler clet cleu clra cltb cltc club clue clut crab crac crar crat crau crbc crbu crca crcc crce crcr cre- crea creb crec cree cret creu crrt crtc crtl crub crue crut ctab ctae ctal ctba ctca ctec ctle ctrc ctrl ctta cuau cub- cuba cubb cube cuca cucc cuce cuer cula culb culc cule cull cult cura curb cure curl curr curt cut- cuta cutc cute cutt e-cl e-la eaba eaca eacc eaec eala ealc eale eara earb eare earl eart eata eate ebac ebal ebba ebbc ebbr ebcc ebel eber ebla ebru ebul ebur ecaa ecac ecal ecar ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecla eclt ecra ecrc ecrl ecrr ecru ect- ecta ectc ecua eeca eeea eeee eele eera eerc eeta eetc eete eetu el-b elab elac elal elar elat elba elbe elbu elca elcb elce elea elec elee eler elet ella elle ellu elra elta elte elue elul eral erat erau erba erbb erbe erca ercc erce ereb erec erel erer eret erla erle erll erra errc erre erta ertl ertu erua erub eruc erur etal etat etbc etbr etcc etec etee etel eter etla etra etre etta ette ettu etua euba eubc euer eula eule eur- eura eurc eure eurt laaa laac laal laar laat laba labe labr labu laca lacc lace lacl lact lacu lael laer laet lala lale lall lalu lara larb larc lare larr lart laru lata latc late latt latu laub laue laul laur laut lbar lbcc lblr lbrt lcac lcat lcbc lcca lccc lcce lcer lcra lcrl lctl le-u leaa leal lear leat leau leba lebu leca lece lect leea leel leer leet lela lele lell lelu lera lerc lere lert leta lete lett leuc leur llat llcc llet lleu lllc llll lrac lral lrat lrba lrrc lrrr lrta ltac ltae ltbl ltcc ltee ltra lttc lttr ltuc luau luba lube luca luce luer lula lule lull lulu lura lure lurt luta lute luua raab raat raba rabb rabe rabl rabu rac- raca racc race ract racu raec rael raer rala ralb rale rall ralt rara rarb rare rata rate ratt ratu raua raub rauc raue raul raut rbbb rbbr rbcl rble rcac rcbc rccb rccc rcet rcle rctc rea- reac reae real rear reat reau reba rebb rebe rebu reca recc rece recr rect recu reeb reel reet rela relb rele rell relt rera rere rert reru reta rete retr rett reue reul reut reuu rlab rlee rleu rlua rrat rrle rrrr rtca rtcc rtce rtee rtle rtlt ruba rubb rube rubu ruca ruce ruct ruel ruer ruet rula rule rull rura rurc rure ruru ruta rute rutl rutt rutu taa- taal taar taat taba tabb tabc tabe tabl tabu taca tacc tace tacl tact taec tael