c-cd cccc cccu ccdc ccdr ccoc ccod ccrc ccuc cd-r cddr coco cocu codd cody cood cor- corc cord coro corr cory coud cour couy coyo coyr crcc crcr crdc croc crod croo cror croy crud cry- cryo cucc curd curo curr cury cuy- cuyo cuyr cyc- cycc cyy- cyyc dc-y dccc dccu dddd ddoc ddrc ddry doco docu dod- dodd dodo dody dood door dorc dord doro dorr doru dory douc doud dour douy doyo drod drou droy druu dry- duco dudd dudo dudu duo- duro duru dury duur duyr dycd dycu dydd dyo- dyoo dyor dyou dyr- dyrc dyro dyru dyur dyyr occc ocro ocrr ocur oddd oddy odoo odor odou odry odur odyr oocr oooo oord oory orco ordo ordu oro- oror oroy orro orry oucc oudc our- ouro ouu- ouyr oyou rccc rcdc rcrd rcyc rdoc rocc roco rodd rodo rody rood roor rorc roro roru rory roud rouy royd rrrr rudd rudo rudy ruoy rurc rurd ruro ruru ruud ruyd rydy ucdc ucdd ucrc udoo uocc uor- urcy urdu urdy uro- uroo urry urur uuoc uuuu uydo yccc yodo yood yord yoro yory youd your yoyo yudo yudu yurd yury yuyu yyyy