bbbb bbci bbcm bbeb bbrc bcbc bccc bcci bccm bcec bcer bcie bcru bcuc bebb bebe bebi beci becu beeb beem beer beic beim beir beme bemu berc bere beri berm berr beru beur bibb bibe bibi bicc bice bici bieb bier bieu birb bire biri birr biru bmce bmci bmic bmir bmmi brcb brce breb brec bree brei brem brer bric brie brim brmc brrm brrr bruc brue brum bubb bube bubi bubu bucc buce buci bucu buem buer bueu buic buie buir buiu bum- bumb bur- burb bure buri burm burr buru cbbc cbcc cbce cbcm cbcr cbcu cbec cbee cber cbir cbme cbre cbrm ccbc cccb cccc ccci cccm cccu ccee ccic ccii ccim ccir ccmb ccmc ccmm ccrc ccre ccri ccuc cebu cec- cece ceci cecm ceeb ceec ceem ceim cemb ceme cemm cemr cemu cer- cerc cere ceri ceui cibc cibe cibi cicc cici cicr cicu ciee cier ciii cimb cime cimi cimm cimr cirb circ cire ciri cirm cirr ciuc cmbc cmcc cmec cmii cmir cmmb cmmc cmmi cmri cmrr crbc crbu crcc crce crcr cre- creb crec cree crei crem creu crib cric crie crim criu crmb crub crue crum cub- cubb cube cubi cucc cuce cuci cucm cuer cui- cuir cum- cume curb cure curi curr ebbc ebbr ebcc eber ebic ebru ebur ecbc ecbe eccb eccc ecce ecci eccm ecem ecib ecim ecmi ecrc ecri ecrm ecrr ecru eeee eerc eiec eiei eier eime eimi eire embe embi embr emcc emer emeu emic emii emim emir emme emmi emmu emre erbb erbe ercc erce ereb erec erei erem erer eric erie erim eriu ermc erme errc erre erub eruc erum erur eubc eubi euer eumc eur- eurc eure i-be ibbm ibec ibie ibim ibrc ibri icbc icbm iccb iccc icci iccr iccu icec icee icem icer icmc icme icmi icmm icrc icre icrm icrr icru icub icue iecc ieie ieme iere ieri iiie iiii iimc iirc iiuc iium imbe imbi imcb imci imec imer imir imme immi imrc imre imri imrr imue irbe irbm ircc ircu iree irem irer iri- iric irie irmc irrc irre irri iucc iuce iuiu mbci mbim mcbc mcbi mccc mcci mcic mcii mcmc mcmi mcrc mcri mebe mec- mecc mece mecr meem meer meic meir memc meme memr memu mer- merb merc mere meri merm meru meum mibc micc mice mici micr miee miem mier mieu miii mim- mime mimi mirc mire miri mirr miru miui mmcc mmci mmcm mmic mmii mmmc mmmm mmrc mr-c mrbb mrbm mrcb mrcc mrce mreb mree mrmc mrrc mube mubi muc- mucc muce mucu muee muie muir mume mumm mumu murc mure muri murr muru rbbb rbbr rcbc rccb rccc rcic rebb rebe rebu recc rece reci recm recr recu reeb reem reii reim reir reiu reme remi rere reri reru reue reuu rib- ribe ribu ricc rice riem rier rieu rime rimi rimm rimu rire riri riue rrmc rrrr rrum rubb rube rubi rubu ruce ruci ruer rumb rume rumi rumm rurc rure ruri ruru u-ie ubbe ubbi uber ubic ubii ubir ucbc ucci ucmc ucrc ueir uirr umb- umbe umbi umec umer umri urbe urbi urci ure- urib uric urie urim uriu urmi urre urri urum urur uuri uuuu