c-cd cccc cccu ccdc cced ccee ccoc ccod ccuc cd-e cdec cec- cece ceco cedd cede cedo cedu ceec ceke ceou ckck ckco ckdo ckdu ckoc ckoo coce cock coco cocu codd code coed cok- coke coko cood cook coud coue couk cucc cuce cuck cude cued cuek cuk- cuke dccc dccu dddd ddoc dec- decc decd dece deck deco dedd dede dedo dedu deed deek dek- deke deue deuk dkdc doce dock doco docu dod- dodd dode dodo doek doke doko dood dook douc doud doue douk duce duck duco dudd dude dudo dudu duke duku duo- eccc ecce ecco ecdc eced ecko eco- ecod ecou eddc edde eddo ede- edoc edod edou educ eede eedu eeee eeke eeoc ekco eked ekek eocd eode eucd eude kccc kccd kcck kccu kcdc kcdd kcdu kcec kced kcee kceo kceu kckc kckk kcko kcoe kcou kcue kcuk kdcc kdcd kdce kdco kddc kddd kddk kdec kdkd kdkk kdko kdoc kdoe kdok kduc keck keco kedc kedd kede kedo keed keek kekc keke keko keku keok kkcd kkck kkco kkdc kkdd kkdo kked kkkk kkoo kkuu kocd kock kode kodk kodo kodu koed kokc koke kokk koko koku kooc kook kooo koou koue kouu kucc kucd kuce kuco kudd kude kudo kudu kued kuek kueu kuke kukk kuku kuok kuoo kuuk kuuu o-eo occc oce oced ocee ocke oddd oded odeo odoo odou oec- oecc oedo oeec okcu oked okko okok ooku oooo oucc oudc oude oued ouu- ucdc ucdd udoo uduk ukcc ukek ukeu ukko ukok uocc uoke uuoc uuuu