c-cd cccc ccdc ccdn ccdr ccgc ccnc ccnr ccoc ccod ccrc ccrg cd-r cddr cdnc cdon cgcc cgcg cgro cnco cndd cnrc cnrr coco codd cogo con- conc cond cong conn cono cood coon cor- corc cord corg corn coro corr crcc crcr crdc croc crod cron croo cror dccc dcgo dcon dddd ddoc ddrc dnoc dnrc doco dod- dodd dodg dodo dog- dogg dogo donc dond dong donn dono donr dood doon door dorc dord dorn doro dorr drno drod drog dron gc-c gccc gcrg gdor gdrc gggg ggrn gncc gngc gnod gnoo gnrc gnrr gocr godo gogo gon- gond gong gonn gono good goog goon goor gord gorg gorn goro gorr grcc grdc groc grod grog gron groo gror grrr nccc nccn nccr ncdc ncdn ncdr ncgr ncnc ncnd ncoc ncor ncrc ndcc nddo ndoc ndor ndrc ngdc ngon ngor nngn nnnn noco nodo nogg nogo non- nong nonn nono noo- noon nooo noor nor- norc nord norg norn noro norr nrdc nroc nron nrrc nrrd occc occn ocon ocro ocrr oddd odon odoo odor ogdc ogod ogog ogon ogro onc- oncd onco ondo ongo onno onod onon onor oocr oooo oord orco ordn ordo orgn orgo ornc orno oro- oron oror orro rccc rcdc rcgc rcnr rcon rcrd rcrg rdoc rnco rndc rnod rocc roco rodd rodo rogg rogo ronc rond rong rono rood roog roon roor rorc roro rrrr