-ene c-cd cccc ccdc ccdn ccdr cced ccee ccgc ccnc ccne ccnr ccrc ccre ccrg cd-e cd-r cddr cdec cder cdnc cdre cec- cece cedd cede ceec cege cen- cend cene ceng cer- cerc cerd cere cern cgcc cgcg cged cger cndd cnrc cnrr crcc crce crcr crdc cre- crec cred cree creg cren crne dccc dddd ddrc ddre dec- decc decd dece dedd dede deed deeg deen deer dege dene deng denn der- derc dere derg dern derr dgeg dgge dnce dner dnrc dred dree dreg dren drge eccc ecce ecdc eced ecne ecrc ecrr eddc edde ede- eden eder edge edrn eede eeee eend eeng eerc eerg egcc egcg egcr egec egee eger egge egne egre ence end- ende ened enee eneg ener enge engg engr ennc enne ercc erce erde erec ered eren erer erg- ergg erne errc erre gc-c gccc gcrg gdrc gece gedd gede geed geen geer gege gegg gen- genc gend gene geng genn gerd gere gern gggg ggrn gncc gngc gnrc gnrr grcc grce grdc grec gree greg gren grrr nccc nccn nccr ncdc ncdn ncdr ncec nced ncee ncen ncer ncgr ncnc ncnd ncrc ncre ndcc ndde nder ndrc ndre necc nece necr nedc nedd nede need neen neer nege nend nene neng nerc nerd nere nerr ngdc nged ngen nger nngn nnnn nrdc nren nrrc nrrd rccc rcdc rcde rcgc rcnr rcrd rcrg rder recc recd rece recr redc redd rede redr reed reen regd rege regn regr rend rene reng renn rerd rere rerg rndc rred rrrr