c-cd cccc ccci cccu ccdc ccdi ccdr cced ccee ccic ccid ccii ccir ccrc ccre ccri ccuc cd-e cd-r cddr cdec cder cdic cdii cdre cec- cece ceci cedd cede cedi cedu ceec ceke cer- cerc cerd cere ceri ceui cicc cici cicr cicu cidc cide cidi cidr ciee cier ciid ciii cikr circ cire ciri cirk cirr ciuc ckck ckdu cker ckrc ckrd crcc crce crcr crdc cre- crec cred cree crei creu cric crie crik criu crkc crud crue cruk cucc cuce cuci cuck cude cudi cued cuek cuer cui- cuir cuk- cuke curd cure curi curr dccc dcci dccu dcii dcrk dddd ddie ddrc ddre dec- decc decd dece deci deck dedd dede dedi dedu deed deek deer deid deie deir dek- deke der- derc dere deri derk derr deue deuk deur dice dici dick dide didi didu died dier dieu diii dike diki diku dird dire dirk dirr dkdc dkid dred dree drei drek dric drie drue drui druk druu duce duck dudd dude dudu duer duid duir duke duki duku dure duri durk duru duur eccc ecce ecci ecdc eced 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 eked ekek eker ekki ekur ercc erce erde erdi erec ered erei erer eric erie erik eriu erke erki errc erre eruc erur eucd eude euer eur- eurc eure iccc icci iccr iccu icdc icdd icde icec iced icee icer icke icrc icre icrr icru icue idce idcr idec ided idee ider idic idid idie idir idku idrc idre iecc iedr ieie iere ieri ieud iicd iide iied iiie iiii iirc iiuc ikee iker ikid ikki ikri ikue ircc ircd ircu irdc ired iree irer iri- iric irid irie irki irrc irre irri iucc iuce iuiu k-ci k-id kccc kccd kcci kcck kccr kccu kcdc kcdd kcdi kcdr kcdu kcec kced kcee kcei kceu kcic kcid kcie kcii kcir kciu kckc kckk kckr kcrc kcri kcrr kcru kcue kcui kcuk kdcc kdcd kdce kdcr kddc kddd kddi kddk kddr kdec kdei kdic kdkd kdkk kdkr kdri kduc kdur keck kecr kedc kedd kede kedi kedr keed keek keer keid keii keik keir kekc keke keki keku ker- kerc kere keri kerk kerr keru keur kicc kicd kice kick kicr kidd kide kidi kidk kidr kidu kier kieu kiic kiid kiii kiik kiiu kikc kikd kiki kikk kikr kiku kirc kiri kirk kirr kiru kiur kiuu kkcd kkci kkck kkcr kkdc kkdd kked kkic kkid kkik kkkk kkrc kkre kkrk kkrr kkuu krcc krcd krce krci krcu krdc krdd krde krdr krdu krec kred kree krei krek kreu krid krik krkc krkd krke krki krkk krkr krku krrc krre krri krrk krrr kruc krue krui kruk krur kucc kucd kuce kuci kucr kudd kude kudi kudu kued kuei kuek kueu kuic kuie kuik kuke kuki kukk kuku kurd kure kuri kurk kurr kuru kuuk kuur kuuu rccc rcdc rcde rcic rcid rcrd rder recc recd rece reci reck recr recu redc redd rede redi redr redu reed reek reid reii reik reir reiu reke reki rerd rere reri reru reue reuk reuu ricc rice rick ridc ridd ride ridi ried riek rier rieu rike riki rikk riku rire riri riue rred rrrr ruce ruci ruck rudd rude rudi rued ruer ruid ruke ruki rukk ruku rurc rurd rure ruri ruru ruud u-ie ucci ucdc ucdd ucrc uddi uder udic udid udir uduk ueir ueki uirr ukcc ukek ukeu ukrc ukur urci urde urdu ure- ured uric urie urik uriu urke urre urri uruk urur uuri uuuu