-er b-u bbb bbc bbd bbe bbm bbr bbu bcb bcc bcd bce bcm bcr bcu bdb bdc bdd bde bdm bdr bdu be- beb bec bed bee bem ber beu bmb bmc bmd bme bmm bmr bmu brb brd bre brm brr bru bub buc bud bue bum bur buu c-- cbb cbc cbd cbe cbm cbr cbu ccb ccc ccd cce ccm ccr ccu cdb cdc cdd cde cdm cdr cdu ce- ceb cec ced cee cem cer ceu cmb cmc cmd cme cmm cmr cmu crb crc crd cre crm crr cru cub cuc cud cue cum cur cuu dbb dbc dbd dbe dbm dbr dbu dcb dcc dcd dce dcm dcr dcu ddb ddc ddd dde ddm ddr ddu de- deb dec ded dee dem der deu dmb dmc dmd dme dmm dmr dmu drb drc drd dre drm drr dru dub duc dud due dum dur ebb ebc ebd ebe ebm ebr ebu ec- ecb ecc ecd ece ecm ecr ecu ed- edb edc edd ede edm edr edu eeb eec eed eee eem eer em- emb emc emd eme emm emr emu erb erc erd ere erm err eru eu- eub euc eud eue eur m-r mbb mbc mbd mbe mbm mbr mbu mc- mcb mcc mcd mce mcm mcr mcu mdb mdc mdd mde mdm mdr mdu meb mec med mee mem mer meu mmb mmc mmd mme mmm mmr mmu mrb mrc mrd mre mrm mrr mru mub muc mud mue mum mur muu rbb rbc rbd rbe rbm rbr rbu rcb rcc rcd rce rcm rcr rcu rdb rdc rdd rde rdm rdr rdu re- reb rec red ree rem rer reu rmb rmc rmd rme rmm rmr rrb rrc rrd rrm rrr rru rub ruc rud rue rum rur ruu ubb ubc ube ubr ubu ucb ucc ucd uce ucm ucr ucu udb udc udd ude udm udr udu ueb uec ued uee uem uer um- umb umc umd ume umm umr umu ur- urb urc urd ure urm urr uru uuc uue uum uur uuu

bbbb bbcm bbdd bbeb bbrc bcbc bccc bccm bcde bcec bcer bcru bcuc bd-r bdbc bddc bdrm bebb bebe becu bede bedu beeb beed beem beer beme bemu berc berd bere berm berr beru beur bmce bmdb brcb brce brdm breb brec bred bree brem brer brmc brrm brrr bruc brud brue brum bubb bube bubu bucc buce bucu budb budd bude budu buem buer bueu bum- bumb bur- burb burd bure burm burr buru c-cd cbbc cbcc cbce cbcm cbcr cbcu cbdb cbdc cbec cbee cber cbme cbrd cbre cbrm ccbc cccb cccc cccm cccu ccdc ccdm ccdr cced ccee ccmb ccmc ccmd ccmm ccrc ccre ccuc cd-e cd-r cddb cddr cdec cder cdre cebu cec- cece cecm cedd cede cedu ceeb ceec ceem cemb ceme cemm cemr cemu cer- cerc cerd cere cmbc cmcc cmdb cmdr cmec cmmb cmmc cmrr crbc crbu crcc crce crcr crdc cre- creb crec cred cree crem creu crmb crub crud crue crum cub- cubb cube cucc cuce cucm cude cued cuer cum- cume curb curd cure curr dbcc dcbc dccb dccc dccu dcdb dcmu dddd ddrc ddre ddub debe debu dec- decc decd dece dedd dede dedu deeb deed deem deer dem- demb demd deme demu der- derb derc dere derm derr deue deum deur dmcc dmcm dmdc dmrb dmrc drbc dred dree drem drub drue drum druu dub- dubb dubc dube dubu duce dudd dude dudu duer dumb dume dumm dure duru duur ebbc ebbr ebcc ebed eber ebru ebur ecbc ecbe eccb eccc ecce eccm ecdc eced ecem ecrc ecrm ecrr ecru eddc edde eddm ede- edem eder edme edrm edru educ edur eede eedu eeee eerc embd embe embr emcc emer emeu emme emmu emre erbb erbe ercc erce erde ereb erec ered erem erer ermc erme errc erre erub eruc erum erur eubc eucd eude eudm euer eumc eur- eurc eure mbdb mbed mcbc mccc mccd mcdc mcdd mcde mced mcmc mcrc mcrd mdcc mddm mdmc mdme mdrc mdud mebe mec- mecc mecd mece mecr medb medd mede medu meed meem meer memc meme memr memu mer- merb merc merd mere merm meru meum mmcc mmcd mmcm mmdb mmdc mmmc mmmd mmmm mmrc mr-c mrbb mrbm mrcb mrcc mrce mrdd mreb mred mree mrmc mrmd mrrc mrud mube muc- mucc muce mucu mudd mude mudu mued muee mume mumm mumu murc murd mure murr muru rbbb rbbr rcbc rccb rccc rcdc rcde rcrd rdbm rdcm rder rebb rebe rebu recc recd rece recm recr recu redc redd rede redr redu reeb reed reem reme rerd rere reru reue reuu rred rrmc rrrr rrum rubb rube rubu ruce rudd rude rued ruer rumb rume rumm rurc rurd rure ruru ruud ubbe uber ubud ucbc ucdc ucdd ucmc ucrc udbc udem uder udmc umb- umbe umde umec umer urbe urde urdu ure- ured urre urum urur uuuu

b-e-d bbbee bcced bd-re be-er bebed beber becue becum bedde bedee beder bedub bedue bedum beebe beede beerd bembe bemer bemud berbe bercu berde berdu berec bered berme berre berru berum beuer beure brebu brece bredd brede breed breem breer breme bremm brerd brere breu- brmmm brrrr bruce brud- brude brued bruer brume brumm bubbe buber bucum bucur budde buddu budec budur bumbu bumed bumme burcu burde burru buruc burud ccccc cdemu cduce cebec ceber cecum ceded cedem ceder cedr- cedre ceede ceere cemec cemre cerbu cerc- cerce cerec cered cerer cerre cmdre cmere crebe crece crede creed creem creer creme creu- creue cruce crude crumb crume crure cubbe cubeb cubed cuber cubub cudde cumbe cumbu cumec cumm- curce cured curer curre d-cru d-mer dbume ddddd ddrmm ddrum debce debed deber debrc decem decur dedde dedee deder dedur deece deede deeme deere dembe demer demme demre demur derbe derce derde dered derm- derme derre derub derue derum deuce deure drdre dredd drede dreed drere druce drude drumb drumm dubec dubee dubuc duded duder duduc duere duerr dumme