-er b-u bbb bbc bbd bbe bbm bbn bbr bbu bcb bcc bcd bce bcm bcn bcr bcu bdb bdc bdd bde bdm bdr bdu be- beb bec bed bee bem ben ber beu bmb bmc bmd bme bmm bmn bmr bmu bnb bnc bnd bne bnn bnr bnu brb brd bre brm brn brr bru bub buc bud bue bum bun bur buu c-- cbb cbc cbd cbe cbm cbn cbr cbu ccb ccc ccd cce ccm ccn ccr ccu cdb cdc cdd cde cdm cdn cdr cdu ce- ceb cec ced cee cem cen cer ceu cmb cmc cmd cme cmm cmn cmr cmu cn- cnb cnc cnd cne cnm cnn cnr cnu crb crc crd cre crm crn crr cru cub cuc cud cue cum cun cur cuu dbb dbc dbd dbe dbm dbn dbr dbu dcb dcc dcd dce dcm dcn dcr dcu ddb ddc ddd dde ddm ddn ddr ddu de- deb dec ded dee dem den der deu dmb dmc dmd dme dmm dmn dmr dmu dnb dnc dnd dne dnm dnn dnr drb drc drd dre drm drn drr dru dub duc dud due dum dun dur ebb ebc ebd ebe ebm ebn ebr ebu ec- ecb ecc ecd ece ecm ecn ecr ecu ed- edb edc edd ede edm edn edr edu eeb eec eed eee eem een eer em- emb emc emd eme emm emn emr emu en- enb enc end ene enm enn enr enu erb erc erd ere erm ern err eru eu- eub euc eud eue eun eur m-r mbb mbc mbd mbe mbm mbr mbu mc- mcb mcc mcd mce mcm mcn mcr mcu mdb mdc mdd mde mdm mdn mdr mdu meb mec med mee mem men mer meu mmb mmc mmd mme mmm mmn mmr mmu mnb mnc mne mnm mnn mnr mnu mrb mrc mrd mre mrm mrn mrr mru mub muc mud mue mum mun mur muu nbb nbc nbd nbe nbm nbn nbr nbu ncb ncc ncd nce ncm ncn ncr ncu ndb ndc ndd nde ndm ndn ndr ndu ne- neb nec ned nee nem nen ner neu nmb nmc nmd nme nmm nmn nmr nmu nnb nnc nne nnm nnn nnu nrb nrc nrd nre nrm nrn nrr nru nub nuc nud nue num nun nur nuu rbb rbc rbd rbe rbm rbn rbr rbu rcb rcc rcd rce rcm rcn rcr rcu rdb rdc rdd rde rdm rdn rdr rdu re- reb rec red ree rem ren rer reu rmb rmc rmd rme rmm rmn rmr rnb rnc rnd rnm rnn rnr rnu rrb rrc rrd rrm rrn rrr rru rub ruc rud rue rum run rur ruu ubb ubc ube ubn ubr ubu ucb ucc ucd uce ucm ucn ucr ucu udb udc udd ude udm udn udr udu ueb uec ued uee uem uen uer um- umb umc umd ume umm umn umr umu un- unb unc und une unm unn unr unu ur- urb urc urd ure urm urn urr uru uuc uue uum uun uur uuu

-ene bbbb bbcm bbdd bbeb bbrc bcbc bccc bccm bcde bcec bcer bcnu bcru bcuc bd-r bdbc bddc bdrm bebb bebe becu bede bedu beeb beed beem been beer beme bemu bend bene benn benu berc berd bere berm bern berr beru beur bmce bmdb bner bnrr brcb brce brdm breb brec bred bree brem bren brer brmc brrm brrr bruc brud brue brum brun bubb bube bubu bucc buce bucu budb budd bude budu buem buen buer bueu bum- bumb bunb bund bune bunn bunu bur- burb burd bure burm burn burr buru c-cd cbbc cbcc cbce cbcm cbcn cbcr cbcu cbdb cbdc cbdn cbec cbee cber cbme cbnd cbrd cbre cbrm cbrn ccbc ccbn cccb cccc cccm cccu ccdc ccdm ccdn ccdr cced ccee ccmb ccmc ccmd ccmm ccnb ccnc ccne ccnm ccnr ccnu ccrc ccre ccuc cd-e cd-r cddb cddr cdec cder cdnb cdnc cdre cebu cec- cece cecm cedd cede cedu ceeb ceec ceem cemb ceme cemm cemr cemu cen- cend cene cer- cerc cerd cere cern cmbc cmcc cmdb cmdr cmec cmmb cmmc cmmn cmrn cmrr cnbc cnbm cndd cnrc cnrr crbc crbu crcc crce crcr crdc cre- creb crec cred cree crem cren creu crmb crmn crne crub crud crue crum crun cub- cubb cube cucc cuce cucm cucn cude cued cuer cum- cume cund cune curb curd cure curn curr dbcc dbrn dcbc dccb dccc dccu dcdb dcmu dddd ddrc ddre ddub debe debu dec- decc decd dece dedd dede dedu deeb deed deem deen deer dem- demb demd deme demn demu dene denn denu der- derb derc dere derm dern derr deue deum deur dmcc dmcm dmdc dmrb dmrc dnce dner dnrc drbc dred dree drem dren drub drue drum druu dub- dubb dubc dube dubu duce dudd dude dudu duer dumb dume dumm dunc dune dunn dure durn duru duur ebbc ebbr ebcc ebed eben eber ebru ebur ecbc ecbe eccb eccc ecce eccm ecdc eced ecem ecne ecrc ecrm ecrr ecru eddc edde eddm ede- edem eden eder edme edrm edrn edru educ edun edur eede eedu eeee eend eerc embd embe embr emcc emcn emen emer emeu emme emmu emne emre enb- enbn enbr ence end- ende endu ened enee enem ener ennc enne ennu enue enum enur erbb erbe ercc erce erde ereb erec ered erem eren erer ermc erme erne 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 mden mdmc mdme mdrc mdud mebe mec- mecc mecd mece mecr medb medd mede medu meed meem meen meer memc meme memr memu men- menc mend mene menn menu mer- merb merc merd mere merm mern meru meum mmcc mmcd mmcm mmdb mmdc mmen mmmc mmmd mmmm mmrc mmun mnbb mndr mnem mr-c mrbb mrbm mrcb mrcc mrce mrdd mreb mred mree mren mrmc mrmd mrnc mrrc