a-be a-do aaaa aaab aaac aaad aaae aaal aaar aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aacl aaco aacr aacu aada aadc aade aadu aaea aaec aala aalc aald aale aall aalo aalu aaoe aaoo aara aarc aard aare aaro aaru abaa abab abac abad abae abal abar abau abb- abba abbb abbe abbo abbr abca abcb abcc abcd abcl abcr abda abdo abdu abec abed abee abel aber abla able ablo aboa abob abod abol aboo abor abou abra abrc abro abua abud abue abul acaa acab acac acad acae acar acba acbl acca accc accd acce acco accu acda acdb acdc acde ace- acea acec aced acel acer acla aclc acle aclr aclu acoa acod acoe acol acor acou acr- acra acrc acre acro acrr acu- acue acul acuo acur adaa adab adac adad adae adal adao adar adba adbc adcc adda addc addd adde addl addo addr addu adea adeb adee adel adeo ader adle adob adoc adod adoe adoo ador adra adre adro adua adub adue adur aeac aecb aecl aede aeer aela aelc aer- aera aerc aerd aero alaa alac alad alae alal alao alar alau alb- alba albc albe albo albu alca alcc alce alco ald- alda alde aldl aldo alea alec aled alee aleo aler aleu all- alla alle alll allo allr allu aloa aloc alod aloe alol aloo alor alou alro alua alur aoba aoca aoce aoeu aola aole aora aorb aoul arab arac arad arae aral arar arau arba arbe arc- arca arce arco arda ardc arde ardl ardo ardu area arec ared aree arel areo areu arla arle arlo aroa arob arod aroe aroo aror arr- arra arrc arre arro arrr arru arua arub arud arue arul auaa aube auca auce audc aude audo auel auer aul- aula auld aule aull aulo aulu auol aur- aura aurd aure auro baaa baad baal baar baba babb babe babo babr babu bac- baca bacc bace baco bada badb badd bade bado badr badu baed bael baer bala balc bald bale ball balo balu baol bar- bara barb barc bard bare baro barr baru bau- baud baul baur bbad bbau bbbb bbdd bbdo bbeb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bcde bcec bcer bcor bcra bcru bcuc bd-r bdbc bddc bdle bead beal bear beau beba bebb bebe bebo beca becu beda bede bedl bedo bedu beeb beed beel beer bela beld bele bell belo belu beo- beod beor bera berc berd bere bero berr beru beur blaa blab blac blad blae blau blcu bldc bldr blea bleb bled blee bleo bleu blob bloc blod bloo blou blrc blub blud blue blur boab boac boad boal boar boba bobb bobe bobo bobu boca boce boco bocu boda bodb bode bodo bodu boea boec boee boel boeo boer bola bold bole boll bolo bolu boob booc bood booe bool boor bor- bora bord bore boro borr boru boua boud boue boul bour brab brac brad brae brao brau brca brcb brce brda brdo brea breb brec bred bree brel breo brer broa brob broc brod broe brol broo bror brou brrr bruc brud brue buad bual buar buba bubb bube bubo bubu buca bucc buce buco bucu buda budb budd bude budl budo budu buea buel buer bueu bula bulb buld bule bull bulu buol bur- bura burb burd bure burl buro burr buru c-bo c-cd caaa caab caac caal caba cabe cabo cabu cac- caca cacc cace caco cacr cada cadc cadd cade cado cadr cadu caec caer caeu cala calc cald cale call calo calu caod caol caor cara carb carc card care carl caro carr cauc caul cauo cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbcu cbdb cbdc cbdo cbea cbec cbee cber cblb cblc cbol cbrd cbre cbrl ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccl cccu ccdc ccdr cced ccee ccel ccla cclc ccob ccoc ccod 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 ceco ceda cedd cede cedo cedu ceeb ceec ceel cel- cela celc cele cell celo ceol ceor ceou cer- cera cerc cerd cere cerl cero clab clad clar clau clcd cldc cldr clea clec cled clee cleo cler cleu clob clod cloe cloo clor clou clra clrd clro club clud clue coad coal coba cobb cobe cobo cobu coca coce coco cocu coda codd code codl coed coel col- cola colb cold cole coll colo colu coob cood cool cor- cora corb corc cord core corl coro corr coua coub coud coue coul cour crab crac crar crau crbc crbu crca crcc crce crcr crda crdc cre- crea creb crec cred cree creo creu crob croc crod croe crol croo cror crub crud crue cuau cub- cuba cubb cube cuca cucc cuce cuda cude cued cuer cula culb culc culd cule cull culo cura curb curd cure curl curo curr d-bo daab daad daae daal daar daau daba dabb dabo dabu daca dace dada dade dado dadu daeb daer daeu dala dale dall dalo dalu daou dara darb darc dard dare darl daro darr daru daub daud daue daur dbar dbcc dcbc dcca dccb dccc dccl dccu dcdb dcra dddd ddlc ddoc ddrc ddre ddub deac dead deae deal dear deau deba debe debu dec- deca decc decd dece decl deco deda dedd dede dedo dedu deeb deed deel deer dela deld dele dell delo deol deor der- dera derb derc dere dero derr deua deue deul deur dlab dlbd dlco doab doae doal doar doba dobb dobe dobl dobu doca doce doco docu dod- doda dodd dode dodo doea doel doer dola dold dole doll dolo dolu doob dood dool door dora dorc dord dore doro dorr doru doub douc doud doue doul dour draa drab drac drad drar drau drba drbc drca drda drea dred dree drel drob drod drol drou drra drua