c-cd cccc ccdc ccdn ccdr ccnc ccnr ccny ccoc ccod ccrc cd-r cddr cdnc cdon cnco cndd cnrc cnrr coco codd cody con- conc cond conn cono cony cood coon cor- corc cord corn coro corr cory coyn coyo coyr crcc crcr crdc croc crod cron croo cror croy cry- cryn cryo cyc- cycc cyn- cyno cyon cyy- cyyc cyyn dc-y dccc dcon dddd ddoc ddrc ddry dnoc dnrc doco dod- dodd dodo dody donc dond donn dono donr dood doon door dorc dord dorn doro dorr dory doyo drno drod dron droy dry- dycd dydd dync dyno dyny dyo- dyon dyoo dyor dyr- dyrc dyro dyyr nccc nccn nccr ncdc ncdn ncdr ncnc ncnd ncoc ncor ncrc ndcc nddo ndoc ndor ndrc ndry nnnn noco nodo nody non- nonn nono noo- noon nooo noor nor- norc nord norn noro norr nory noyo nrdc nroc nron nrrc nrrd nycc nyco nycy nyny nyon nyro occc occn ocon ocro ocrr oddd oddy odon odoo odor odry odyr onc- oncd onco ondo ondy onno onod onon onor onoy oocr oooo oord oory orco ordn ordo ornc orno orny oro- oron oror oroy orro orry oyon rccc rcdc rcnr rcon rcrd rcyc rdoc rnco rndc rnod rocc roco rodd rodo rody ronc rond rono rony rood roon roor rorc roro rory royd royn rrrr rydy rynd rynn ryon yccc ydon ynon yodo yond yono yood yoon yord yorn yoro yory yoyn yoyo yron yryn yyyy