c-cd cccc ccdc ccdr ccoc ccod ccrc cd-r cddr ckck ckco ckcy ckdo ckoc ckoo ckor ckoy ckrc ckrd ckry cock coco codd cody cok- coko coky cood cook cor- corc cord cork coro corr cory coyo coyr crcc crcr crdc crkc croc crod crok croo cror croy cry- cryo cyc- cycc cyrk cyy- cyyc dc-y dccc dcrk dddd ddoc ddrc ddry dkdc dock doco dod- dodd dodo dody doko doky dood dook door dorc dord dork doro dorr dory doyk doyo drod droy dry- dycd dyck dydd dyko dykr dyo- dyok dyoo dyor dyr- dyrc dyrk dyro dyyr kccc kccd kcck kccr kccy kcdc kcdd kcdr kcdy kckc kckk kcko kckr kcky kcor kcrc kcro kcrr kcry kcyk kcyy kdcc kdcd kdco kdcr kddc kddd kddk kddr kdkd kdkk kdko kdkr kdoc kdok kdro kdry kdyk kkcd kkck kkco kkcr kkcy kkdc kkdd kkdo kkdy kkkk kkoo kkor kkoy kkrc kkrk kkro kkrr kkyc kkyy kocd kock kodk kodo kody kokc kokk koko kokr koky kooc kook kooo koor korc kord kork koro korr koyo koyy krcc krcd krco krdc krdd krdo krdr krdy krkc krkd krkk krko krkr krky kroc krod krok kroo kror kroy krrc krrk krro krrr krry kryd kryk kryo kryy kycc kyck kycr kydd kydo kydy kykc kykd kykk kykr kyky kyok kyoo kyor kyoy kyrc kyrk kyro kyyk kyyo kyyy occc ocro ocrr oddd oddy odoo odor odry odyr okko okok okor okro okyo oocr ooky oooo oord oory orco ordo orko oro- orok oror oroy orro orry rccc rcdc rcrd rcyc rdoc rocc rock roco rodd rodo rody rokk roko rokr roky rood rook roor rorc rork roro rory royd rrrr ryck rydy yccc ykko yock yodo yoko yoky yood yook yord york yoro yory yoyo yyyy