-er bbb bbe bbg bbi bbk bbr bbs be- beb bee beg bei bek ber bes bgb bge bgg bgi bgk bgr bgs bi- bib bie big bii bik bir bis bkb bke bkg bkk bkr bks brb bre brg bri brk brr brs bsb bse bsg bsi bsk bsr bss ebb ebe ebg ebi ebk ebr ebs eeb eee eeg eek eer ees egb ege egg egi egr egs eib eie eig eii eik eir eis ekb eke ekg eki ekr eks erb ere erg eri erk err ers es- esb ese esg esi esk esr ess gbe gbg gbi gbk gbr gbs ge- geb gee geg gei gek ger ges ggb ggg ggi ggr ggs gib gie gig gii gik gir gis gkb gks grb gre grg gri grk grr grs gsb gse gsg gsi gsk gsr gss ibb ibe ibg ibi ibk ibr ibs ie- iee ieg iei iek ier ies igb ige igg igi igk igr igs iib iie iii iir iis ikb ike iki ikk ikr iks ir- irb ire irg iri irk irr irs is- isb ise isg isi isk isr iss kbb kbe kbi kbk kbr kbs ke- keb kee keg kei kek ker kes kgb kgi kgs kib kie kig kii kik kir kis kkb kke kki kkk kkr kks krg kri krk krr krs ksb kse ksg ksi ksk ksr kss rbb rbe rbg rbi rbk rbr rbs re- reb ree reg rei rek rer res rgb rge rgg rgi rgk rgr rgs rib rie rig rii rik rir ris rkb rke rkg rkk rks rrb rrg rri rrk rrr rrs rsb rse rsg rsi rsk rsr rss sbb sbe sbg sbi sbk sbr sbs se- seb see seg sei sek ser ses sgb sge sgg sgi sgk sgr sgs sib sie sig sii sik sir sis sk- skb ske skg ski skk skr sks sr- srb sre srg sri srk srr srs ss- ssb sse ssg ssi ssk ssr sss

bbbb bbbs bbeb bbrg bebb bebe bebi beeb beeg beek beer bees begg begi begs beik beir beis beke beki beks bere berg beri berk berr bers bes- bese besk bess bggs bibb bibe bibi bibs bieb bier bies bigb bige bigg bigs biis bike birb bire birg biri birk birr birs bis- bise bisk biss breb bree breg brei brek brer bres brie brig brik bris brkb brrr brrs brsb brsr bseb bsee bseg bser bses bsgs bsse ebbr ebbs eber ebes ebis eeee eees eegs eeke eeks eerg eers eese eesi eesk egbe egee eger eggb egge eggi eggs egir egis egks egre egri egss eiei eier eies eige eigg eike eiki eiks eire eirs eise eisk eiss ekeb ekek eker ekes ekgs ekis ekki eksi erbb erbe ereb erei erer eres erg- ergg ergi ergs erie erik eris erke erki erks erre errs erse ersi esbs esee esek eser eses esie esik esis eske esks esri esse essg essi gbbs gebe gebi geek geer gees gege gegg geie geig geir geis geki gerb gere geri gers gesg gesi gesk gess gggg ggss gibb gibe gibs gier gies gige gigg gigi gigs giis gire girg giri girk girr girs gise giss grbr greb gree greg gres grib grie grig gris grrr grrs grss gsis gskb gsse i-be ibeg ibes ibge ibie ibis ibri ibss ieie iere ieri iers iesg iesi iesr iger iges iggs igis igri iies iiie iiii iiis iirs iisi iisr ikee iker ikes ikig ikki ikri irbe iree irer ires irgs iri- irie irig iris irki irks irre irri irrs irse irsg isbe iseb isee iser ises isie isis isrg isri isse issi issr isss kbbb kbbe kbbg kbbi kbbk kbbr kbbs kbeb kbee kbek kber kbes kbgb kbge kbgg kbgr kbib kbie kbig kbik kbis kbkb kbkg kbkk kbkr kbrb kbre kbrg kbri kbrk kbsb kbsg kbsi kbsk kbsr kbss kebb kebe kebi kebr keek keer kees kege kegg kegi kegk kegr kegs keib keig keii keik keir keis kekb keke keki keks ker- kerb kere keri kerk kerr kers kesb kesi kesk kesr kess kgbb kgbr kgeb kggg kggi kggr kgir kgks kgrb kgre kgrg kgri kgrk kgrr kgrs kgsr kibb kibe kibg kibi kibr kibs kier kies kigs kiii kiik kiis kiki kikk kikr kirb kiri kirk kirr kirs kise kisi kisk kisr kiss kkbb kkbe kkbg kkbi kkbr kkbs kkeg kkgb kkgr kkik kkkk kkrb kkre kkrk kkrr kkrs kkse kksi kksr kkss krbb krbe krbg krbi krbk krbr kreb kree krei krek kres krgi krgs krib krik kris krke krki krkk krkr krks krrb krre krrg krri krrk krrr krrs krse krsk krsr krss ksbi ksbr ksbs ksee kseg ksei ksek kser ksgg ksgr ksib ksig ksii ksik ksir ksis kskb kske kskg kskk kskr ksks ksrb ksrg ksrr ksrs ksse kssi kssr ksss rbbb rbbr rbbs rbis rbss rebb rebe rebk rebs reeb reek rees rege regi regr regs reii reik reir reis reke reki reks rere rerg reri rers rese resi ress rgbe rgbi rib- ribe ribs riek rier ries rige rigg rigi rigs riis rike riki rikk rire riri rirs rise risi risk riss rkss rrrr rsbi rsee rsgb rsis rsre s-ib s-ii sbbs sber sbig sbrk sbse sbsi se-e se-g se-i se-k se-s sebe sebi sebs seeb seeg seek seer sees sege segg segi segs seie seii seik seir seis seke seki sekk serb sere serg seri serk serr sers sese sesi sess sger sges sggg sggs sgss sibe sibi sibs sieg siek sier sies sige sigg sigi sigs siik sike siki sikr siks sire siri sirk sirr sirs sise sisi sisk siss skee skeg skei sker skes skie skig skik skir skis skss sreb sres srgb srib sris ssbr ssee sses ssgs ssis ssrg ssri ssrs sssb sssi ssss

b-r-k bbbee bbser be-er bebek beber bebes beebe beebs beeke beeri beers begee begge beggs beibi beier beige beire beirs beker bekes bekir bekke berbe bereg berei berek beres berge bergi bergs berie berig beris berk-