-er bbb bbe bbf bbg bbk bbo bbr be- beb bee bef beg bek beo ber bfb bfe bff bfg bfo bfr bgb bge bgf bgg bgk bgo bgr bkb bke bkf bkg bkk bko bkr bob boe bof bog bok boo bor brb bre brf brg brk bro brr ebb ebe ebf ebg ebk ebo ebr eeb eee eef eeg eek eeo eer ef- efb efe eff efg efo efr egb ege egf egg ego egr ekb eke ekf ekg eko ekr eo- eob eoe eof eog eok eoo eor erb ere erf erg erk ero err fbb fbe fbf fbg fbk fbo fbr feb fee fef feg fek feo fer ffe fff ffg ffk ffo ffr fgb fge fgf fgg fgr fkb fkf fkg fkk fob foe fof fog fok foo for frb fre frf frg frk fro frr gbe gbf gbg gbk gbo gbr ge- geb gee gef geg gek geo ger gfb gfe gff gfk gfo gfr ggb ggg ggo ggr gkb gko gob goe gof gog gok goo gor grb gre grf grg grk gro grr kbb kbe kbf kbk kbo kbr ke- keb kee kef keg kek keo ker kff kfg kfo kgb kgf kgo kkb kke kkk kkr kob koe kof kog kok koo kor krf krg krk kro krr ob- obb obe obf obg obk obo obr oeb oee oef oeg oeo oer of- ofb ofe off ofg ofo ofr oge ogf ogg ogo okb oke okg okk oko okr oo- oob oof oog ook ooo oor or- orb ore orf org ork oro orr rbb rbe rbf rbg rbk rbo rbr re- reb ree ref reg rek reo rer rfb rfe rff rfg rfk rfo rfr rgb rge rgf rgg rgk rgo rgr rkb rke rkf rkg rkk rko rob roe rof rog rok roo ror rrb rrf rrg rrk rrr

bbbb bbeb bbrg bebb bebe bebo beeb beef beeg beek beer befe beff befo begg bego beke beko beo- beof beok beor bere berg berk bero berr bfgf bobb bobe bobo boee boef boeo boer bofe boff boge bogg bogo boke boko boob booe boof boog book boor bor- bore borf borg bork boro borr breb bree bref breg brek breo brer brkb brob broe brog brok broo bror brrr ebbo ebbr eber eboe eboo ebor ebro eeee eefe eeke eerg eero ef-g efbr efeo efke efor egbe egee eger egfr eggb egge eggo ego- egor egre ekeb ekek eker eore erbb erbe ereb erer erg- ergg ergo erke erob eroe eroo erre erro f--k febo feeb feek feer fefe feff fefo fege fegg feke feko feof ferb fere ferk fero ferr ffee ffff ffrr foer fofo foge fogg fogo foke foof fook for- forb fore forg fork foro forr free freo frob froe frog gbbo gebe geek geer gefe gege gegg gego geko geo- geof geog gerb gere gero gfer gfor ggfg gggg gobe gobo goef goer gofe goff gofr gogo goke goof goog gook goor gorb gore gorf gorg goro gorr grbr greb gree gref greg grob grof grog grok groo gror grrr kbbb kbbe kbbf kbbg kbbk kbbo kbbr kbeb kbee kbef kbek kbeo kber kbfb kbff kbfk kbfo kbfr kbgb kbge kbgg kbgo kbgr kbkb kbkf kbkg kbkk kbko kbkr kbob kboe kbok kboo kbrb kbre kbrf kbrg kbrk kbro kebb kebe kebr keef keek keer kefb keff kefr kege kegg kegk kegr kekb keke keko keok ker- kerb kere kerf kerk kero kerr kfbk kfeb kfeg kfer kffb kfff kffg kffk kfge kfgo kfgr kfkb kfog kfok kfoo kfor kfre kfrg kfro kfrr kgbb kgbr kgeb kgeo kgff kgfk kggf kggg kggo kggr kgoe kgor kgrb kgre kgrg kgrk kgro kgrr kkbb kkbe kkbg kkbo kkbr kkeg kkfg kkfr kkgb kkgo kkgr kkkk kkob kkoo kkor kkrb kkre kkrf kkrk kkro kkrr kobb kobe kobk kobo kobr kofe koff kofg kofk kofo kogb koge kogg kogo kokb koke kokf kokk koko kokr koob koog kook kooo koor korb kore korf korg kork koro korr krbb krbe krbg krbk krbr kreb kree kref krek kreo krfe krff krfg krfo krke krkk krko krkr krob kroe krof krog krok kroo kror krrb krre krrf krrg krrk krro krrr o-eo obbo ober obkb oboe obok obor obre obro oegb oere ofek ofer off- offe offo offr ofgo ofor ofre ogb ogbe ogee oger ogfr ogge ogog ogre ogro oker okgo okko okok okor okre okro oobe ooer ooff oooo oore orbb orbe orbo ore- oreb oreg orek oreo orer orfe orff orge orgo orke orko oro- oroe orof orok oror orro rbbb rbbr rebb rebe rebk rebo reeb reef reek refe reff refg refr rege rego regr reke reko reof reog rere rerg rero rfef rgbe rkkf rob- robb robe robo roeg roer rofe roff rofo roge rogg rogo roke rokk roko rokr roob roof roog rook roor rore rork roro rrrr

b-r-k bbbee bbook be-er be-ro bebek beber bebog beebe beeke beffe befoe befog befor begee begge begob begof begor beker bekke bekko bekok beofe beoff berbe bereg berek berge berk- berke berko berob beroe berok beror berre bfrog bo-bo bobek bobko bobok bobr bobre boege boeke boero boffo boger bogge bogoe bogof bogor bokeo boker bokko bokok bokor booer booke booko boore borbo boree borek borer borge borgo borko boro- borok boroo borre borro breef breek breer breg- brege bregg breke breo- brere brobo broek broer broke brook brrrr ebber ebeko eberg ebook eeeee efere effer efore egger egrek ekeko ekker eofor eorre erbbe erber erege erere ergo- erkko eroge eroor erore error febre feeor feere fefor feoff ferr- ferre ferro fogbo foggo fokke foore fore- foreo forge forgo forro freek freer frege freke frere frobe frore gbeke gbeko gberg gboko geber gebke gebre geebo geere gefek gegge gekko geoff georg gerbe gerbo gerke gerok gerre go-go go-oo gobbe gobbo gobeo goeke gofer goffe gofor gogok gogro goobo gooff googe goore gorbe goree gorer gorge gorgo gorre grebe grebo greef greek greer grefe greff grege gregg