-er bbb bbe bbg bbk bbn bbr bbs be- beb bee beg bek ben ber bes bgb bge bgg bgk bgn bgr bgs bkb bke bkg bkk bkn bkr bks bnb bne bng bnk bnn bnr bns brb bre brg brk brn brr brs bsb bse bsg bsk bsn bsr bss ebb ebe ebg ebk ebn ebr ebs eeb eee eeg eek een eer ees egb ege egg egn egr egs ekb eke ekg ekr eks en- enb ene eng enk enn enr ens erb ere erg erk ern err ers es- esb ese esg esk esn esr ess gbe gbg gbk gbn gbr gbs ge- geb gee geg gek gen ger ges ggb ggg ggn ggr ggs gkb gkn gks gnb gne gnn gnr gns grb gre grg grk grn grr grs gsb gse gsg gsk gsn gsr gss kbb kbe kbk kbn kbr kbs ke- keb kee keg kek ken ker kes kgb kgs kkb kke kkk kkn kkr kks kn- kne kng knk knn knr krg krk krn krr krs ksb kse ksg ksk ksn ksr kss nbb nbe nbg nbk nbn nbr nbs ne- neb nee neg nek nen ner nes ngb nge ngg ngk ngn ngs nke nkk nkn nkr nks nnb nne nng nnk nnn nns nrb nre nrg nrk nrn nrr nrs nsb nse nsg nsk nsn nsr nss rbb rbe rbg rbk rbn rbr rbs re- reb ree reg rek ren rer res rgb rge rgg rgk rgn rgr rgs rkb rke rkg rkk rks rnb rng rnn rnr rns rrb rrg rrk rrn rrr rrs rsb rse rsg rsk rsn rsr rss sbb sbe sbg sbk sbn sbr sbs se- seb see seg sek sen ser ses sgb sge sgg sgk sgn sgr sgs sk- skb ske skg skk skr sks snb sne sng snk snn snr sns sr- srb sre srg srk srn srr srs ss- ssb sse ssg ssk ssn ssr sss

-ene bbbb bbbs bbeb bbng bbrg bebb bebe beeb beeg beek been beer bees begg begs beke beks bene beng benk benn bens bere berg berk bern berr bers bes- bese besk bess bggs bneg bner bnrr bnss breb bree breg brek bren brer bres brkb brns brrr brrs brsb brsr bseb bsee bseg bser bses bsgs bsns bsse ebbr ebbs eben eber ebes eeee eees eegs eeke eeks eeng eens eerg eers eese eesk egbe egee eger eggb egge eggs egks egne egre egss ekeb ekek eken eker ekes ekgs ekne enb- enbn enbr enee eneg ener enes enge engg engr engs enke enkr enne enns enrs ense ensg erbb erbe ereb eren erer eres erg- ergg ergs erke erks erne erns erre errs erse esbs esee esek esen eser eses esgn eske esks esne esse essg gbbs gebe geek geen geer gees gege gegg gen- gene geng genk genn gens gerb gere gern gers gesg gesk gess gggg ggrn ggss gnrr grbr greb gree greg gren gres grrr grrs grss gskb gsse kbbb kbbe kbbg kbbk kbbr kbbs kbeb kbee kbek kben kber kbes kbgb kbge kbgg kbgn kbgr kbkb kbkg kbkk kbkr kbng kbnn kbnr kbrb kbre kbrg kbrk kbrn kbsb kbsg kbsk kbsn kbsr kbss kebb kebe kebn kebr keek keen keer kees kege kegg kegk kegr kegs kekb keke keks ken- kene keng kenk kenn kenr kens ker- kerb kere kerk kern kerr kers kesb kesk kesn kesr kess kgbb kgbn kgbr kgeb kgen kggg kggr kgks kgnb kgng kgnr kgrb kgre kgrg kgrk kgrn kgrr kgrs kgsr kkbb kkbe kkbg kkbn kkbr kkbs kkeg kken kkgb kkgr kkkk kknb kkne kknn kkns kkrb kkre kkrk kkrn kkrr kkrs kkse kksn kksr kkss knbb knbe knbn knbr kneb knee knek knen knes kngn kngr knkk knnb knng knnk knnr knns knrb knrg knrk knrs knsb knse knsg knsk knsn knsr knss krbb krbe krbg krbk krbr kreb kree krek kren kres krgn krgs krke krkk krkn krkr krks krnb krne krng krnk krnn krrb krre krrg krrk krrn krrr krrs krse krsk krsn krsr krss ksbn ksbr ksbs ksee kseg ksek ksen kser ksgg ksgn ksgr kskb kske kskg kskk kskn kskr ksks ksnb ksng ksnk ksnn ksnr ksns ksrb ksrg ksrn ksrr ksrs ksse kssn kssr ksss nber nebb nebe nebn nebr nebs neeb neen neer nees nege negs neke nene neng nens nere nerk nerr ners nesb nese nesn nesr ness ngen nger ngns ngsk ngsn nkgb nnes nngn nnnn nnss nren nseb nser nskk nsnr nssb nsse nssr nsss rbbb rbbr rbbs rbss rebb rebe rebk rebs reeb reek reen rees rege regn regr regs reke reks rene reng renk renn rens rere rerg rers rese resn ress rgbe rkss rnbr rngs rrrr rsee rsgb rsnn rsnr rsre sbbs sber sbrk sbse se-e se-g se-k se-n se-s sebe sebs seeb seeg seek seen seer sees sege segg segs seke sekk sene seng senn senr sens serb sere serg serk sern serr sers sese sess sger sges sggg sggs sgss skee skeg sken sker skes skn- skss sneb snee sneg sner snes snns snrk snrs sreb sres srgb srnn ssbn ssbr ssee sses ssgs ssns ssrg ssrs sssb ssss

b-r-k bbbee bbser be-er bebek beber bebes beebe beebs beeke beene beens beers begee begge beggs beken beker bekes bekke bene- benge benke benks benne bense berbe bereg berek beren beres berge bergs berk- berke berks berne berns berre berse besee besen besne besse breek breen breer brees breg- brege bregg breke brene breng brenk brenn brens brere brers brese bress brnes brrrr ebber ebene ebens eberg ebern ebers ebner ebsen eeeee eeens eener eense egene egers eggen egger eggng egner egrek egres ekene ekers ekker ekren enese engen enger enges engrs enker ennes enrge erbbe erben erber erebs ereen erege erere eresk ergen ernen ernes erres erses esben esene esens esere esker esnes essen esser esses essse gbeke gberg geben geber gebke gebre geeks geere geers geese gegge gener genes genge gengs genre gerbe gerbs geren geres gerke gerre gers-