c-cd cccc ccdc ccdn ccdr ccnc ccnr ccoc ccod ccrc cd-r cddr cdnc cdon ckck ckco ckdo cknc ckoc ckoo ckor ckrc ckrd cnco cndd cnrc cnrr cock coco codd cok- coko con- conc cond conk conn cono cood cook coon cor- corc cord cork corn coro corr crcc crcr crdc crkc croc crod crok cron croo cror dccc dcon dcrk dddd ddoc ddrc dkdc dnoc dnrc dock doco dod- dodd dodo doko donc dond donk donn dono donr dood dook doon door dorc dord dork dorn doro dorr drno drod dron kccc kccd kcck kccr kcdc kcdd kcdr kckc kckk kckn kcko kckr kcnd kcno kcnr kcon kcor kcrc kcrn kcro kcrr kdcc kdcd kdco kdcr kddc kddd kddk kddr kdkd kdkk kdkn kdko kdkr kdnd kdnk kdnn kdno kdnr kdoc kdok kdro kkcd kkck kkcn kkco kkcr kkdc kkdd kkdo kkkk kknd kknn kkno kkon kkoo kkor kkrc kkrk kkrn kkro kkrr knck kncn knco kncr kndc kndd kndk kndn kndo kndr knkk knnd knnk knnr knoc knod knok knon knor knrk knro kocd kock kocn kodk kodo kokc kokk kokn koko kokr konc kond konk kono kooc kook koon kooo koor korc kord kork korn koro korr krcc krcd krcn krco krdc krdd krdo krdr krkc krkd krkk krkn krko krkr krnd krnk krnn krno kroc krod krok kroo kror krrc krrk krrn krro krrr nccc nccn nccr ncdc ncdn ncdr ncnc ncnd ncoc ncor ncrc ndcc nddo ndoc ndor ndrc nkok nkor nnnn nock noco nodo noko non- nonn nono noo- nook noon nooo noor nor- norc nord nork norn noro norr nrdc nroc nron nrrc nrrd occc occn ocon ocro ocrr oddd odon odoo odor okko okno okok okon okor okro onc- oncd onco ondo onno onod onon onor oocr oooo oord orco ordn ordo orko ornc orno oro- orok oron oror orro rccc rcdc rcnr rcon rcrd rdoc rnco rndc rnod rocc rock roco rodd rodo rokk roko rokr ronc rond ronk rono rood rook roon roor rorc rork roro rrrr