bbbb bbci bbdd bbeb bbrc bcbc bccc bcci bcde bcec bcer bcie bcru bcuc bd-r bdbc bddc bdii bebb bebe bebi beci beck becu bede bedi bedu beeb beed beek beer beic beik beir beke beki berc berd bere beri berk berr beru beuk beur bibb bibe bibi bicc bice bici bick bide bidi bidr bidu bieb bied bier bieu bike biku birb bird bire biri birk birr biru brcb brce breb brec bred bree brei brek brer bric brid brie brik brkb brrr bruc brud brue bubb bube bubi bubu bucc buce buci buck bucu budb budd bude budi budu buer bueu buic buid buie buik buir buiu buke buki bukk buku bur- burb burd bure buri burk burr buru c-cd cbbc cbcc cbce cbcr cbcu cbdb cbdc cbdi cbec cbee cber cbid cbir cbkr cbrd cbre ccbc cccb cccc ccci cccu ccdc ccdi ccdr cced ccee ccic ccid ccii ccir ccrc ccre ccri ccuc cd-e cd-r cddb cddr cdec cder cdic cdii cdre cebu cec- cece ceci cedd cede cedi cedu ceeb ceec ceke cer- cerc cerd cere ceri ceui cibc cibe cibi cicc cici cicr cicu cidc cide cidi cidr ciee cier ciid ciii cikr cirb circ cire ciri cirk cirr ciuc ckbc ckbe ckbi ckck ckdu cker ckrc ckrd crbc crbu crcc crce crcr crdc cre- creb crec cred cree crei creu crib cric crie crik criu crkc crub crud crue cruk cub- cubb cube cubi cucc cuce cuci cuck cude cudi cued cuek cuer cui- cuir cuk- cuke curb curd cure curi curr dbcc dcbc dccb dccc dcci dccu dcdb dcii dcrk dddd ddie ddrc ddre ddub debe debi debu dec- decc decd dece deci deck dedd dede dedi dedu deeb deed deek deer deid deie deir dek- deke der- derb derc dere deri derk derr deue deuk deur dibb dibe dice dici dick dide didi didu dieb died dier dieu diii dike diki diku dird dire dirk dirr dkdc dkid drbc dred dree drei drek drib dric drie drub drue drui druk druu dub- dubb dubc dube dubu duce duck dudd dude dudu duer duid duir duke duki duku dure duri durk duru duur ebbc ebbr ebcc ebed eber ebic ebid ebru ebur ecbc ecbe eccb eccc ecce ecci ecdc eced ecib ecrc ecri ecrr ecru eddc edde eddi ede- edei eder edie edik edru educ edur eede eedu eeee eeke eerc eick eid- eide eidi eidr eidu eiec eied eiei eier eike eiki eird eire ekeb eked ekek eker ekki ekur erbb erbe ercc erce erde erdi ereb erec ered erei erer eric erie erik eriu erke erki errc erre erub eruc erur eubc eubi eucd eude euer eur- eurc eure i-be ibec ibed ibid ibie ibrc ibrd ibri icbc icbd iccb iccc icci iccr iccu icdc icdd icde icec iced icee icer icke icrc icre icrr icru icub icue idbe idce idcr idec ided idee ider idic idid idie idir idku idrc idre idub iecc iedr ieie iere ieri ieud iicd iide iied iiie iiii iirc iiuc ikee iker ikid ikki ikri ikue irbe ircc ircd ircu irdc ired iree irer iri- iric irid irie irki irrc irre irri iucc iuce iuiu k-ci k-id kbbb kbbc kbbd kbbe kbbi kbbk kbbr kbbu kbcb kbce kbci kbck kbcr kbcu kbdb kbde kbdi kbdr kbeb kbec kbed kbee kbek kber kbib kbic kbid kbie kbik kbiu kbkb kbkk kbkr kbrb kbrc kbrd kbre kbri kbrk kbru kbub kbuc kbud kbue kbuk kbur kbuu kcbc kcbd kcbi kcbk kcbr kcbu kccb kccc kccd kcci kcck kccr kccu kcdc kcdd kcdi kcdr kcdu kceb kcec kced kcee kcei kceu kcic kcid kcie kcii kcir kciu kckc kckk kckr kcrc kcri kcrr kcru kcub kcue kcui kcuk kdbb kdbi kdbr kdcc kdcd kdce kdcr kddb kddc kddd kddi kddk kddr kdeb kdec kdei kdic kdkb kdkd kdkk kdkr kdrb kdri kdub kduc kdur kebb kebc kebe kebi kebr kebu keck kecr kedb kedc kedd kede kedi kedr keed keek keer keib keid keii keik keir kekb kekc keke keki keku ker- kerb kerc kere keri kerk kerr keru keur kibb kibc kibe kibi kibr kibu kicb kicc kicd kice kick kicr kidb kidd kide kidi kidk kidr kidu kier kieu kiic kiid kiii kiik kiiu kikc kikd kiki kikk kikr kiku kirb kirc kiri kirk kirr kiru kiur kiuu kkbb kkbd kkbe kkbi kkbr kkcb kkcd kkci kkck kkcr kkdc kkdd kked kkic kkid kkik kkkk kkrb kkrc kkre kkrk kkrr kkuu krbb krbd krbe krbi krbk krbr krcb krcc krcd krce krci krcu krdc krdd krde krdr krdu kreb krec kred kree krei krek kreu krib krid krik krkc krkd krke krki krkk krkr krku krrb krrc krre krri krrk krrr kruc krue krui kruk krur kubb kubc kubd kube kubr kubu kucb kucc kucd kuce kuci kucr kudd kude kudi kudu kued kuei kuek kueu kuic kuie kuik kuke kuki kukk kuku kurb kurd kure kuri kurk kurr kuru kuub kuuk kuur kuuu rbbb rbbr rcbc rccb rccc rcdc rcde rcic rcid rcrd rder rebb rebe rebk rebu recc recd rece reci reck recr recu redc redd rede redi redr redu reeb reed reek reid reii reik reir reiu reke reki rerd rere reri reru reue reuk reuu rib- ribe ribu ricc rice rick ridc ridd ride ridi ried riek rier rieu rike riki rikk riku rire riri riue rred rrrr rubb rube rubi rubu ruce ruci ruck rudd rude rudi rued ruer ruid ruke ruki rukk ruku rurc rurd rure ruri ruru ruud u-ie ubbe ubbi ubek uber ubic ubid ubii ubik ubir ubud ucbc ucci ucdc ucdd ucrc udbc uddi uder udic udid udir uduk ueir ueki uirr ukcc ukek ukeu ukrc ukur urbe urbi urci urde urdu ure- ured urib uric urie urik uriu urke urre urri uruk urur uuri uuuu