-ene bbbb bbbs bbeb bebb bebe beeb beem been beer bees beme bemu bene benn bens benu bere berm bern berr bers beru bes- bese besm bess beur beux bmus bner bnrr bnss breb bree brem bren brer bres brex brns brrm brrr brrs brsb brsr brue brum brun brus brux bseb bsee bser bses bsms bsns bsrm bsse bssm bubb bube bubs bubu buem buen buer bueu bum- bumb bums bunb bune bunn buns bunu bur- burb bure burm burn burr burs buru buse buss busu busx buus ebbr ebbs eben eber ebes ebru ebur ebus eeee eees eems eens eers eese embe embr embs emen emer emes emeu emex emme emms emmu emne emre emrs emse emus enb- enbn enbr enee enem ener enes enne enns ennu enrs ense ensu enue enum enur enus er-x erbb erbe ereb erem eren erer eres erme erms erne erns erre errs erse erub erum erur erus esbs esee esem esen eser eses esme esmr esne esse essu esus euer eums eur- eure euse exen exer exes exmr exrx exum mbbs mbes mbms mbrs mbus mebe meem meen meer mees meme memr mems memu memx men- mene menn mens menu mer- merb mere merm mern mers meru mes- mese mesr mess meum meus meux mexx mmen mmes mmmm mmms mmse mmsu mmun mmus mmxx mnbb mnem mnse mrbb mrbm mrbs mreb mree mren mres mrse msee msem msex msmb msmm msms msmu msrb mssm mssr msun msus mube mubs muee mues mume mumm mums mumu mune munn muns munu mure murn murr murs muru muse muss musu muxe muxu nber nebb nebe nebn nebr nebs nebu neeb neem neen neer nees nem- neme nemn nems nemu nene nens nenu nere nerm nerr ners neru nesb nese nesn nesr ness neue neum neun neur neuu nexe nexx nm-e nmex nmrx nnes nnnn nnss nrem nren nsbm nseb nsem nser nsmb nsnr nssb nsse nssr nsss nsub nube nubs nuee nuer numb nume numm nums numu nune nunn nuns nure nurn nurr nurs nuru nuse nuss nusu rbbb rbbr rbbs rbms rbmx rbss rebb rebe rebs rebu reeb reem reen rees reme remn rems rene renn rens renu rere rers reru rese resn ress reue reus reuu reux rexx rmbs rnbr rrrr rrum rrun rsee rsme rsmx rsnn rsnr rsre rsum rubb rube rubs rubu ruen ruer rues rumb rume rumm rums rune runn runs rure rurs ruru ruse russ rusu ruun rxes sbbs sber sbse sbus se-e se-n se-s se-u se-x sebe sebs seeb seem seen seer sees seeu seex seme semn sems semu sene senn senr sens serb sere serm sern serr sers seru sese sess seur seux sex- sexe smbe smeb smee smen smsn smss smur smus sneb snee sner snes snns snrs snub snum snur snus sreb srem sres srnn srub ssbn ssbr ssee ssem sses ssex ssns ssrm ssrs sssb sssm ssss sub- subb subm subs suee suen suer sues sueu sum- sume sums sumu sun- sunb sune sunn suns sunu sur- sure surn surr surs suru sus- suse suss susu suum suus sux- suxe ubbe uber uers uesn uess umb- umbe umer umes umms umsu umus unbe uneb unee unen uner unes unmr unne unns unrs uns- unum unus urbe urbs ure- ures urex urne urns urre urse urss ursu urum urun urur urus usbe usbr usbs usee usen user uses usme usmm usms usnr usnu ussb usse ussr usss ussu usun usus uuen uuuu uxem uxue uxus xbee xeer xeme xemu xen- xene xenn xenu xer- xers xeus xexe xmen xmms xnee xsun xurs xuxu xxxx