c-cd cccc ccdc ccdr ccgc ccoc ccod ccrc ccrg cd-r cddr cgcc cgcg cgro coco codd cogo cood cor- corc cord corg coro corr crcc crcr crdc croc crod croo cror dccc dcgo dddd ddoc ddrc doco dod- dodd dodg dodo dog- dogg dogo dood door dorc dord doro dorr drod drog gc-c gccc gcrg gdor gdrc gggg gocr godo gogo good goog goor gord gorg goro gorr grcc grdc groc grod grog groo gror grrr occc ocro ocrr oddd odoo odor ogdc ogod ogog ogro oocr oooo oord orco ordo orgo oro- oror orro rccc rcdc rcgc rcrd rcrg rdoc rocc roco rodd rodo rogg rogo rood roog roor rorc roro rrrr