cccc ccgc ccnc ccnr ccoc ccrc ccrg cgcc cgcg cgro cnco cnrc cnrr coco cogo con- conc cong conn cono coon cor- corc corg corn coro corr crcc crcr croc cron croo cror gc-c gccc gcrg gggg ggrn gncc gngc gnoo gnrc gnrr gocr gogo gon- gong gonn gono goog goon goor gorg gorn goro gorr grcc groc grog gron groo gror grrr nccc nccn nccr ncgr ncnc ncoc ncor ncrc ngon ngor nngn nnnn noco nogg nogo non- nong nonn nono noo- noon nooo noor nor- norc norg norn noro norr nroc nron nrrc occc occn ocon ocro ocrr ogog ogon ogro onc- onco ongo onno onon onor oocr oooo orco orgn orgo ornc orno oro- oron oror orro rccc rcgc rcnr rcon rcrg rnco rocc roco rogg rogo ronc rong rono roog roon roor rorc roro rrrr