a-be aaaa aaab aaac aaad aaae aaal aaar aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aacl aacr aacu aada aadc aade aadu aaea aaec aala aalc aald aale aall aalu aara aarc aard aare aaru abaa abab abac abad abae abal abar abau abb- abba abbb abbe abbr abca abcb abcc abcd abcl abcr abda abdu abec abed abee abel aber abla able abra abrc abua abud abue abul acaa acab acac acad acae acar acba acbl acca accc accd acce accu acda acdb acdc acde ace- acea acec aced acel acer acla aclc acle aclr aclu acr- acra acrc acre acrr acu- acue acul acur adaa adab adac adad adae adal adar adba adbc adcc adda addc addd adde addl addr addu adea adeb adee adel ader adle adra adre adua adub adue adur aeac aecb aecl aede aeer aela aelc aer- aera aerc aerd alaa alac alad alae alal alar alau alb- alba albc albe albu alca alcc alce ald- alda alde aldl alea alec aled alee aler aleu all- alla alle alll allr allu alua alur arab arac arad arae aral arar arau arba arbe arc- arca arce arda ardc arde ardl ardu area arec ared aree arel areu arla arle arr- arra arrc arre arrr arru arua arub arud arue arul auaa aube auca auce audc aude auel auer aul- aula auld aule aull aulu aur- aura aurd aure baaa baad baal baar baba babb babe babr babu bac- baca bacc bace bada badb badd bade badr badu baed bael baer bala balc bald bale ball balu bar- bara barb barc bard bare barr baru bau- baud baul baur bbad bbau bbbb bbdd bbeb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bcde bcec bcer bcra bcru bcuc bd-r bdbc bddc bdle bead beal bear beau beba bebb bebe beca becu beda bede bedl bedu beeb beed beel beer bela beld bele bell belu bera berc berd bere berr beru beur blaa blab blac blad blae blau blcu bldc bldr blea bleb bled blee bleu blrc blub blud blue blur brab brac brad brae brau brca brcb brce brda brea breb brec bred bree brel brer brrr bruc brud brue buad bual buar buba bubb bube bubu buca bucc buce bucu buda budb budd bude budl budu buea buel buer bueu bula bulb buld bule bull bulu bur- bura burb burd bure burl burr buru c-cd caaa caab caac caal caba cabe cabu cac- caca cacc cace cacr cada cadc cadd cade cadr cadu caec caer caeu cala calc cald cale call calu cara carb carc card care carl carr cauc caul cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbcu cbdb cbdc cbea cbec cbee cber cblb cblc cbrd cbre cbrl ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccl cccu ccdc ccdr cced ccee ccel ccla cclc ccra ccrc ccre ccrl ccuc cd-e cd-r cdaa cdac cdad cdba cdda cddb cddl cddr cdec cder cdre ceac cead ceal cear ceba cebu cec- ceca cece ceda cedd cede cedu ceeb ceec ceel cel- cela celc cele cell cer- cera cerc cerd cere cerl clab clad clar clau clcd cldc cldr clea clec cled clee cler cleu clra clrd club clud clue crab crac crar crau crbc crbu crca crcc crce crcr crda crdc cre- crea creb crec cred cree creu crub crud crue cuau cub- cuba cubb cube cuca cucc cuce cuda cude cued cuer cula culb culc culd cule cull cura curb curd cure curl curr daab daad daae daal daar daau daba dabb dabu daca dace dada dade dadu daeb daer daeu dala dale dall dalu dara darb darc dard dare darl darr daru daub daud daue daur dbar dbcc dcbc dcca dccb dccc dccl dccu dcdb dcra dddd ddlc ddrc ddre ddub deac dead deae deal dear deau deba debe debu dec- deca decc decd dece decl deda dedd dede dedu deeb deed deel deer dela deld dele dell der- dera derb derc dere derr deua deue deul deur dlab dlbd draa drab drac drad drar drau drba drbc drca drda drea dred dree drel drra drua drub drue druu duaa duab duad dual duar dub- duba dubb dubc dube dubu duca duce duda dudd dude dudu duel duer dula dulc dule dull dulu dura dure duru duul duur e-cl e-la eaba eaca eacc eada eadb eadd eaec eala ealc eald eale eara earb eard eare earl ebac ebal ebba ebbc ebbr ebcc ebed ebel eber ebla ebru ebul ebur ecaa ecac ecad ecal ecar ecbc ecbe ecca eccb eccc ecce eccl ecdc ecdl eced ecla ecra ecrc ecrl ecrr ecru ecua edac edad edar edca edda eddc edde ede- edea edel eder edla edle edra edru educ edur eeca eede eedu eeea eeee eele eera eerc el-b elab elac elad elal elar elba elbe elbu elca elcb elce elda elde eldr elea elec eled elee eler ella elle ellu elra elue elul erad eral erau erba erbb erbe erca ercc erce erda erde ereb erec ered erel erer erla erld erle erll erra errc erre erua erub eruc erur euba eubc eucd eude euer eula eule eur- eura eurc eure laaa laac laad laal laar laba labe labr labu laca lacc lace lacl lacu lada ladd lade ladu lael laer lala lald lale lall lalu lara larb larc lard lare larr laru laub laud laue laul laur lbar lbcc lblr lcac lcad lcbc lcca lccc lcce lcdd lcdr lcer lcra lcrd lcrl le-u leaa lead leal lear leau leba lebd lebu leca lece leda lede leea leed leel leer lela lele lell lelu lera lerc lerd lere leuc leud leur llcc lldb lldc lleu lllc llll llud lrac lral lrba lrdd lrrc lrrr luau luba lube luca luce luda ludd lude lued luer lula lule lull lulu lura lurd lure luua raab raad raba rabb rabe rabl rabu rac- raca racc race racu rada radc radd rade radl radr radu raec raed rael raer