c-cd cccc ccdc ccdr cced ccee ccoc ccod ccrc ccre cd-e cd-r cddr cdec cder cdre cec- cece ceco cedd cede cedo ceec ceke ceor cer- cerc cerd cere cero ckck ckco ckdo cker ckoc ckoo ckor ckrc ckrd coce cock coco codd code coed cok- coke coko cood cook cor- corc cord core cork coro corr crcc crce crcr crdc cre- crec cred cree creo crkc croc crod croe crok croo cror dccc dcrk dddd ddoc ddrc ddre dec- decc decd dece deck deco dedd dede dedo deed deek deer dek- deke deor der- derc dere derk dero derr dkdc doce dock doco dod- dodd dode dodo doek doer doke doko dood dook door dorc dord dore dork doro dorr dred dree drek drod eccc ecce ecco ecdc eced ecko eco- ecod ecrc ecrr eddc edde eddo ede- eder edoc edod eede eeee eeke eeoc eerc eero ekco eked ekek eker eocd eode eore ercc erce erde erec ered erer erke eroc erod eroe eroo errc erre erro kccc kccd kcck kccr kcdc kcdd kcdr kcec kced kcee kceo kckc kckk kcko kckr kcoe kcor kcrc kcro kcrr kdcc kdcd kdce kdco kdcr kddc kddd kddk kddr kdec kdkd kdkk kdko kdkr kdoc kdoe kdok kdro keck keco kecr kedc kedd kede kedo kedr keed keek keer kekc keke keko keok ker- kerc kere kerk kero kerr kkcd kkck kkco kkcr kkdc kkdd kkdo kked kkkk kkoo kkor kkrc kkre kkrk kkro kkrr kocd kock kode kodk kodo koed kokc koke kokk koko kokr kooc kook kooo koor korc kord kore kork koro korr krcc krcd krce krco krdc krdd krde krdo krdr krec kred kree krek kreo krkc krkd krke krkk krko krkr kroc krod kroe krok kroo kror krrc krre krrk krro krrr o-eo occc oce oced ocee ocke ocre ocro ocrr oddd oded odeo oder odoo odor oec- oecc oedo oeec oere oked oker okko okok okor okre okro oocr ooer oooo oord oore orce orco orde ordo ore- orec ored orek oreo orer orke orko oro- oroe orok oror orro rccc rcdc rcde rcrd rder rdoc recc recd rece reck recr redc redd rede redo redr reed reek reke reko reod rerd rere rero rocc roce rock roco rodd rode rodo roed roer roke rokk roko rokr rood rook roor rorc rore rork roro rred rrrr