-ene bbbb bbch bbdd bbeb bbrc bcbc bccc bcde bcec bcer bchd bche bd-r bdbc bddc bddh bebb bebe bech bede beeb beed been beer behn behr bend bene benn berc berd bere bern berr bhcc bher bner bnrr brcb brce breb brec bred bree bren brer brrr c-cd cbbc cbcc cbce cbcn cbcr cbdb cbdc cbdn cbec cbee cber cbnd cbrd cbre cbrh cbrn ccbc ccbn cccb cccc ccdc ccdh ccdn ccdr cced ccee cche cchr ccnb ccnc ccne ccnr ccrc ccre cd-e cd-r cddb cddr cdec cder cdnb cdnc cdre cec- cece cedd cede ceeb ceec cen- cend cene cer- cerc cerd cere cern chce chch cheb chec ched chee cheh chen cher chnb chnc chnr chrb chrc chrd chrn chrr cnbc cndd cnrc cnrr crbc crcc crce crcr crdc cre- creb crec cred cree creh cren crne dbcc dbrn dcbc dccb dccc dcdb dche dddd ddrc ddre debe dec- decc decd dece dedd dede deeb deed deen deer dehn dene denn der- derb derc dere dern derr dhec dhed dhee dher dhrn dnce dner dnrc drbc dred dree dreh dren drnh ebbc ebbr ebcc ebed eben eber ecbc ecbe eccb 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 enb- enbn enbr ence ench end- ende endh ened enee ener ennc enne erbb erbe ercc erce erch erde ereb erec ered eren erer erhc erne errc erre hbcd hcbc hccb hccc hcch hcdr hcrd hebb hebe hebr hech hedd hede heeb heed heer hehe hehn hend hene henh henn herb herc herd here hern herr hhhh hnce hndd hrdc hrdn hree hrrc nbbc nbcc nber nbhd ncbc nccc nccn nccr ncdc ncdn ncdr ncec nced ncee ncen ncer nchc nchd ncnc ncnd ncrc ncre ndcc nddb ndde nder ndrc ndre nebb nebe nebn nebr necc nece nech necr nedc nedd nede neeb need neen neer nehe nend nene nenh nerc nerd nere nerr nhcc nheb nhnn nhrc nndb nnnn nrdc nren nrrc nrrd rbbb rbbr rcbc rccb rccc rcdc rcde rchb rcnr rcrd rder rebb rebe recc recd rece rech recr redc redd rede redh redr reeb reed reen rehb rehe rehn rend rene renn rerd rere rhce rheb rhee rhen rnbr rndc rred rrrr