-er b-u bbb bbe bbk bbn bbr bbs bbu be- beb bee bek ben ber bes beu bkb bke bkk bkn bkr bks bnb bne bnk bnn bnr bns bnu brb bre brk brn brr brs bru bsb bse bsk bsn bsr bss bsu bub bue buk bun bur bus buu ebb ebe ebk ebn ebr ebs ebu eeb eee eek een eer ees ekb eke ekr eks eku en- enb ene enk enn enr ens enu erb ere erk ern err ers eru es- esb ese esk esn esr ess esu eu- eub eue eun eur eus kbb kbe kbk kbn kbr kbs kbu ke- keb kee kek ken ker kes kkb kke kkk kkn kkr kks kku kn- kne knk knn knr knu krk krn krr krs kru ksb kse ksk ksn ksr kss ksu kub kue kuk kun kur kus kuu nbb nbe nbk nbn nbr nbs nbu ne- neb nee nek nen ner nes neu nke nkk nkn nkr nks nku nnb nne nnk nnn nns nnu nrb nre nrk nrn nrr nrs nru nsb nse nsk nsn nsr nss nsu nub nue nuk nun nur nus nuu rbb rbe rbk rbn rbr rbs rbu re- reb ree rek ren rer res reu rkb rke rkk rks rku rnb rnn rnr rns rnu rrb rrk rrn rrr rrs rru rsb rse rsk rsn rsr rss rsu rub rue ruk run rur rus ruu sbb sbe sbk sbn sbr sbs sbu se- seb see sek sen ser ses seu sk- skb ske skk skr sks sku snb sne snk snn snr sns snu sr- srb sre srk srn srr srs ss- ssb sse ssk ssn ssr sss ssu sub sue suk sun sur sus suu ubb ube ubk ubn ubr ubs ubu ueb uee uen uer ues ukb uke ukk ukn ukr uku un- unb une unk unn unr uns unu ur- urb ure urk urn urr urs uru usb use usk usn usr uss usu uue uun uur uus uuu

-ene bbbb bbbs bbeb bebb bebe beeb beek been beer bees beke beks bene benk benn bens benu bere berk bern berr bers beru bes- bese besk bess beuk beur bner bnrr bnss breb bree brek bren brer bres brkb brns brrr brrs brsb brsr brue brun brus bseb bsee bser bses bsns bsse bubb bube bubs bubu buen buer bueu buke bukk buku bunb bune bunk bunn buns bunu bur- burb bure burk burn burr burs buru buse busk buss busu buus ebbr ebbs eben eber ebes ebru ebur ebus eeee eees eeke eeks eens eers eese eesk ekeb ekek eken eker ekes ekne ekur enb- enbn enbr enee ener enes enke enkr enne enns ennu enrs ense ensu enue enur enus erbb erbe ereb eren erer eres erke erks erne erns erre errs erse erub erur erus esbs esee esek esen eser eses eske esks esku esne esse essu esus euer eur- eure euse kbbb kbbe kbbk kbbr kbbs kbbu kbeb kbee kbek kben kber kbes kbkb kbkk kbkr kbnn kbnr kbnu kbrb kbre kbrk kbrn kbru kbsb kbsk kbsn kbsr kbss kbsu kbub kbue kbuk kbun kbur kbus kbuu kebb kebe kebn kebr kebu keek keen keer kees kekb keke keks keku ken- kene kenk kenn kenr kens kenu ker- kerb kere kerk kern kerr kers keru kesb kesk kesn kesr kess keun keur keus kkbb kkbe kkbn kkbr kkbs kken kkkk kknb kkne kknn kkns kknu kkrb kkre kkrk kkrn kkrr kkrs kkse kksn kksr kkss kksu kkus kkuu knbb knbe knbn knbr knbu kneb knee knek knen knes kneu knkk knnb knnk knnr knns knrb knrk knrs knsb knse knsk knsn knsr knss knsu knub knue knuk knur knus krbb krbe krbk krbr kreb kree krek kren kres kreu krke krkk krkn krkr krks krku krnb krne krnk krnn krnu krrb krre krrk krrn krrr krrs krse krsk krsn krsr krss krsu krue kruk krun krur ksbn ksbr ksbs ksee ksek ksen kser kskb kske kskk kskn kskr ksks ksku ksnb ksnk ksnn ksnr ksns ksrb ksrn ksrr ksrs ksse kssn kssr ksss kssu ksub ksue ksun ksuu kubb kube kubr kubs kubu kuek kuen kues kueu kuke kukk kukn kuks kuku kune kunk kunr kuns kunu kurb kure kurk kurr kurs kuru kusb kusn kusu kuub kuuk kuur kuuu nber nebb nebe nebn nebr nebs nebu neeb neen neer nees neke neku nene nens nenu nere nerk nerr ners neru nesb nese nesn nesr ness neue neuk neun neur neuu nnes nnnn nnss nren nseb nser nskk nsnr nssb nsse nssr nsss nsub nube nubk nubs nuee nuer nuke nuku nune nunk nunn nuns nure nurn nurr nurs nuru nuse nuss nusu nuuk rbbb rbbr rbbs rbss rebb rebe rebk rebs rebu reeb reek reen rees reke reks rene renk renn rens renu rere rers reru rese resn ress reue reuk reus reuu rkss rnbr rrrr rrun rsee rsnn rsnr rsre rubb rube rubs rubu ruen ruer rues ruke rukk rukn ruku rune runk runn runs rure rurs ruru ruse rusk russ rusu ruun sbbs sber sbrk sbse sbus se-e se-k se-n se-s se-u sebe sebs seeb seek seen seer sees seeu seke sekk seku sene senn senr sens serb sere serk sern serr sers seru sese sess seur skee sken sker skes skn- skss skue skun skur sneb snee sner snes snns snrk snrs snub snur snus sreb sres srnn srub ssbn ssbr ssee sses ssns ssrs sssb ssss sub- subb subs suee suen suer sues sueu suke suks suku sun- sunb sune sunk sunn suns sunu sur- sure surn surr surs suru sus- suse susk suss susu suus ubbe ubek uber uers uesn uess ukek ukes ukeu ukur unbe uneb unee unen uner unes unke unkn unks unne unns unrs uns- unus urbe urbs ure- ures urke urne urns urre urse urss ursu uruk urun urur urus us-k usbe usbr usbs usee usen user uses uske usnr usnu ussb usse ussr usss ussu usun usus uuen uuuu

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