-ene c-cd cccc ccdc ccdh ccdn ccdr cced ccee cche cchr ccnc ccne ccnr ccrc ccre cd-e cd-r cddr cdec cder cdnc cdre cec- cece cedd cede ceec cen- cend cene cer- cerc cerd cere cern chce chch chec ched chee cheh chen cher chnc chnr chrc chrd chrn chrr cndd cnrc cnrr crcc crce crcr crdc cre- crec cred cree creh cren crne dccc dche dddd ddrc ddre dec- decc decd dece dedd dede deed deen deer dehn dene denn der- derc dere dern derr dhec dhed dhee dher dhrn dnce dner dnrc dred dree dreh dren drnh eccc ecce ecdc eced eche ecne ecrc ecrr eddc edde ede- edeh eden eder edrn eede eeee eend eerc ehcc ehdd eheh ehen eher ehre ence ench end- ende endh ened enee ener ennc enne ercc erce erch erde erec ered eren erer erhc erne errc erre hccc hcch hcdr hcrd hech hedd hede heed heer hehe hehn hend hene henh henn herc herd here hern herr hhhh hnce hndd hrdc hrdn hree hrrc nccc nccn nccr ncdc ncdn ncdr ncec nced ncee ncen ncer nchc nchd ncnc ncnd ncrc ncre ndcc ndde nder ndrc ndre necc nece nech necr nedc nedd nede need neen neer nehe nend nene nenh nerc nerd nere nerr nhcc nhnn nhrc nnnn nrdc nren nrrc nrrd rccc rcdc rcde rcnr rcrd rder recc recd rece rech recr redc redd rede redh redr reed reen rehe rehn rend rene renn rerd rere rhce rhee rhen rndc rred rrrr