-er b-u bbb bbe bbg bbk bbn bbr bbu be- beb bee beg bek ben ber beu bgb bge bgg bgk bgn bgr bgu bkb bke bkg bkk bkn bkr bnb bne bng bnk bnn bnr bnu brb bre brg brk brn brr bru bub bue bug buk bun bur buu ebb ebe ebg ebk ebn ebr ebu eeb eee eeg eek een eer egb ege egg egn egr egu ekb eke ekg ekr eku en- enb ene eng enk enn enr enu erb ere erg erk ern err eru eu- eub eue eug eun eur gbe gbg gbk gbn gbr gbu ge- geb gee geg gek gen ger geu ggb ggg ggn ggr ggu gkb gkn gnb gne gnn gnr gnu grb gre grg grk grn grr gru gu- gub gue gug guk gun gur guu kbb kbe kbk kbn kbr kbu ke- keb kee keg kek ken ker kgb kgu kkb kke kkk kkn kkr kku kn- kne kng knk knn knr knu krg krk krn krr kru kub kue kug kuk kun kur kuu nbb nbe nbg nbk nbn nbr nbu ne- neb nee neg nek nen ner neu ngb nge ngg ngk ngn ngu nke nkk nkn nkr nku nnb nne nng nnk nnn nnu nrb nre nrg nrk nrn nrr nru nub nue nug nuk nun nur nuu rbb rbe rbg rbk rbn rbr rbu re- reb ree reg rek ren rer reu rgb rge rgg rgk rgn rgr rkb rke rkg rkk rku rnb rng rnn rnr rnu rrb rrg rrk rrn rrr rru rub rue rug ruk run rur ruu ubb ube ubg ubk ubn ubr ubu ueb uee ueg uen uer ugb uge ugg ugk ugn ugr ugu ukb uke ukk ukn ukr uku un- unb une ung unk unn unr unu ur- urb ure urg urk urn urr uru uue uug uun uur uuu

-ene bbbb bbeb bbng bbrg bebb bebe beeb beeg beek been beer begg begu beke bene beng benk benn benu bere berg berk bern berr beru beuk beur bgun bneg bner bnrr breb bree breg brek bren brer brkb brrr brue brug brun bubb bube bubu buen buer bueu buge bugg buke bukk buku bunb bune bung bunk bunn bunu bur- burb bure burg burk burn burr buru ebbr eben eber ebru ebur eeee eeke eeng eerg egbe egbu egee eger eggb egge egne egre ekeb ekek eken eker ekne ekur enb- enbn enbr enee eneg ener enge engg engr enke enkr enne ennu enue enur erbb erbe ereb eren erer erg- ergg erke erne erre erub erur euer euge eur- eure gebe geek geen geer gege gegg gen- gene geng genk genn genu gerb gere gern geru geue geun gggg ggrn gneu gnrr grbr greb gree greg gren greu grrr grub grue grug grun grur gubb gubu guen guer gugb guge gugg gugu gung gunk gunn gurb gure gurg gurk gurn gurr guru kbbb kbbe kbbg kbbk kbbr kbbu kbeb kbee kbek kben kber kbgb kbge kbgg kbgn kbgr kbkb kbkg kbkk kbkr kbng kbnn kbnr kbnu kbrb kbre kbrg kbrk kbrn kbru kbub kbue kbuk kbun kbur kbuu kebb kebe kebn kebr kebu keek keen keer kege kegg kegk kegr kekb keke keku ken- kene keng kenk kenn kenr kenu ker- kerb kere kerk kern kerr keru keug keun keur kgbb kgbn kgbr kgeb kgen kggg kggr kgnb kgng kgnr kgnu kgrb kgre kgrg kgrk kgrn kgrr kkbb kkbe kkbg kkbn kkbr kkeg kken kkgb kkgr kkkk kknb kkne kknn kknu kkrb kkre kkrk kkrn kkrr kkuu knbb knbe knbn knbr knbu kneb knee knek knen kneu kngn kngr knkk knnb knng knnk knnr knrb knrg knrk knub knue knuk knur krbb krbe krbg krbk krbr kreb kree krek kren kreu krgn krke krkk krkn krkr krku krnb krne krng krnk krnn krnu krrb krre krrg krrk krrn krrr krue krug kruk krun krur kubb kube kubr kubu kuek kuen kueu kugb kuge kugn kugr kuke kukk kukn kuku kune kung kunk kunr kunu kurb kure kurk kurr kuru kuub kuuk kuur kuuu nber nebb nebe nebn nebr nebu neeb neen neer nege neke neku nene neng nenu nere nerk nerr neru neue neuk neun neur neuu ngen nger ngur nguu nkgb nngn nnnn nren nube nubk nuee nuer nuke nuku nune nung nunk nunn nure nurn nurr nuru nuuk rbbb rbbr rebb rebe rebk rebu reeb reek reen rege regn regr regu reke rene reng renk renn renu rere rerg reru reue reuk reuu rgbe rnbr rrrr rrun rubb rube rubu ruen ruer ruge rugg ruke rukk rukn ruku rune rung runk runn rure ruru ruun ubbe ubek uber ugne ugur uguu ukek ukeu ukur unbe uneb unee unen uner ungu unke unkn unne urbe ure- urge urgu urke urne urre uruk urun urur uuen uuuu

b-r-k bbbee bbgun be-er bebek beber beebe beeke beene begee begge begue begun begur beken beker bekke bene- benge bengu benke benne bennu benue benuk benun benur berbe bereg berek beren berge berk- berke berne berre berru berun beuer beure brebu breek breen breer breg- brege bregg breke brene breng brenk brenn brere breu- brrrr bruen bruer bruge brugg bruke brune brung brunk brunn bruun bubbe buben buber bugen buger bugge bugre bugun buker bukk- buknu bunge bungu bunke bunne bunuk bunun burek buren burge burgk burgu burke burn- burne burru buruk burun ebber ebene eberg ebern ebner ebure eeeee eener egene eggen egger eggng egner egrek ekene ekker ekren ekuku ekuru enbun engen enger enker enku enrge enugu enure enurn erbbe erben erber ereen erege erere ergen ergun ernen eruke eugen eurre gbeke gberg gberu geben geber gebke gebre gebur geere gegge genbu gener genge genre gerbe geren gerke gerre grebe greek green greer grege gregg grene greng grenn grgen grgur grrrr grubb grube grune grunk grure gubbe guben guber gubru guene guere guern gugen guner gunge gungu gunne gunnr guren gurge gurke gurne gurre gurun gurur k-gee k-gun kebbe kebek keben keber keene keere kegen kenge