-er bbb bbe bbf bbk bbo bbr be- beb bee bef bek beo ber bez bfb bfe bff bfo bfr bfz bkb bke bkf bkk bko bkr bob boe bof bok boo bor boz brb bre brf brk bro brr brz bze bzf bzo bzr bzz ebb ebe ebf ebk ebo ebr eeb eee eef eek eeo eer ef- efb efe eff efo efr ekb eke ekf eko ekr eo- eob eoe eof eok eoo eor erb ere erf erk ero err erz eze ezf ezo ezr ezz fbb fbe fbf fbk fbo fbr feb fee fef fek feo fer fez ffe fff ffk ffo ffr ffz fkb fkf fkk fob foe fof fok foo for foz frb fre frf frk fro frr k-z kbb kbe kbf kbk kbo kbr kbz ke- keb kee kef kek keo ker kez kff kfo kkb kke kkk kkr kob koe kof kok koo kor koz krf krk kro krr kzo ob- obb obe obf obk obo obr oeb oee oef oeo oer of- ofb ofe off ofo ofr ofz okb oke okk oko okr oo- oob oof ook ooo oor or- orb ore orf ork oro orr orz oze ozo ozz rbb rbe rbf rbk rbo rbr re- reb ree ref rek reo rer rez rfb rfe rff rfk rfo rfr rfz rkb rke rkf rkk rko rkz rob roe rof rok roo ror roz rrb rrf rrk rrr rzb rze rzo zbb zbr zeb zee zef zek zeo zer zez zfr zo- zob zoe zof zok zoo zor zro zzr zzz

bbbb bbeb bebb bebe bebo beeb beef beek beer befe beff befo beke beko beo- beof beok beor bere berk bero berr beze bobb bobe bobo boee boef boeo boer bofe boff boke boko boob booe boof book boor booz bor- bore borf bork boro borr borz bozo breb bree bref brek breo brer brez brkb brob broe brok broo bror broz brrr bzer bzoe bzrk bzzz ebbo ebbr eber eboe eboo ebor ebro eeee eefe eeke eero eeze efbr efeo efke efor efze ekeb ekek eker eore erbb erbe ereb erer erez erke erob eroe eroo erre erro ezek ezer ezzo f--k febo feeb feek feer fefe feff fefo feke feko feof ferb fere ferk fero ferr ferz ffee ffff ffrr foer fofo foke foof fook for- forb fore fork foro forr free freo frob froe frzb kbbb kbbe kbbf kbbk kbbo kbbr kbbz kbeb kbee kbef kbek kbeo kber kbez kbfb kbff kbfk kbfo kbfr kbkb kbkf kbkk kbko kbkr kbkz kbob kboe kbok kboo kboz kbrb kbre kbrf kbrk kbro kbrz kbze kbzo kbzz kebb kebe kebr keef keek keer kefb keff kefr kekb keke keko keok ker- kerb kere kerf kerk kero kerr kerz kezb keze kezf kezr kezz kfbk kfbz kfeb kfer kfez kffb kfff kffk kfkb kfok kfoo kfor kfre kfro kfrr kfrz kfze kfzo kkbb kkbe kkbo kkbr kkbz kkez kkfr kkkk kkob kkoo kkor kkoz kkrb kkre kkrf kkrk kkro kkrr kkrz kkzz kobb kobe kobk kobo kobr kofe koff kofk kofo kokb koke kokf kokk koko kokr kokz koob kook kooo koor kooz korb kore korf kork koro korr kozb koze kozk kozo kozr krbb krbe krbk krbr krbz kreb kree kref krek kreo krez krfe krff krfo krke krkk krko krkr krkz krob kroe krof krok kroo kror kroz krrb krre krrf krrk krro krrr krrz krze krzk krzr krzz kzbb kzbe kzbk kzbr kzbz kzee kzer kzfr kzke kzkr kzkz kzoo kzor kzoz kzrb kzrk kzro kzrr kzrz kzzb kzzk kzzo kzzr kzzz o-eo obbo ober obkb oboe obok obor obre obro oere ofek ofer off- offe offo offr ofor ofoz ofre oker okko okok okor okre okro oobe ooer ooff oooo oore ooze orbb orbe orbo ore- oreb orek oreo orer orfe orff orke orko oro- oroe orof orok oror oroz orro orzk orzo ozee ozek ozer rbbb rbbr rebb rebe rebk rebo reeb reef reek refe reff refr reke reko reof rere rero reze rfef rkkf rob- robb robe robo roer rofe roff rofo roke rokk roko rokr roob roof rook roor rooz rore rork roro roze rozz rrrr z-ro zbek zber zebe zeek zeff zeke zeko zekr zerf zerk zero zeze zobo zoff zoke zoo- zook zorb zore zork zoro zozo zrze zzzz

b-r-k bbbee bbook be-er be-ro bebek beber beebe beeke beez beffe befoe befor beker bekke bekko bekok beofe beoff berbe berek berk- berke berko berob beroe berok beror berre berze berzo bezer bo-bo bobek bobko bobok bobr bobre boeke boero boffo bokeo boker bokko bokok bokor booer booke booko bookz boore booze borbo boree borek borer borko boro- borok boroo borre borro bozer bozok bozoo breef breek breer breke breo- brere breze brobo broek broer broke brook broze brrrr ebber ebeko ebook eeeee efere effer efore ekeko ekker eofor eorre erbbe erber erere erkko eroor erore error ezbob febre feeor feere feeze fefor feoff feroz ferr- ferre ferro fokke foore fore- foreo forez forro forze freek freer freke frere frobe frore froze fzbrf k-rob kebbe kebek keber kebob keefe keere kefee kerek kerre ko-ko kobee kober koker kokez kokko kokor kokre korbe korbo korek korez korff korke koror korro kre-o kreef kreek kreke kreo- kroke o-fer o-r-b oboro obreb obrez obrok obzor offek offer offof offre okeke okere okker okobo okoro oo-er ooooo oreo- orere orero orfeo orfoe orfor orkez orobe orobo oroer oroke ozbek ozero ozker ozoro rebbe reber reefe reere reeze refer reffe reffo rekke rere- reree rerez rerob rezek rezzo ro-ro robbe robbo rober robo- robor roero roffe rofor rokee roker rokke rokkk rooer roofe rooke roore rorer rorke zboze zebre zeebo zeero zeoke zerbe zerbo zeror zerre zober zokor zorbo zorko zorro zzzzz

b-zero bbbbbb bebook beebee beefer beeker beerze beezer before befree bekker bekoor bekoro berbee berbeo berber bereke bereko berere berker berrer berzek bezerk bobber bobeke bobrek bobrok boeber boerre bokere bokoro boober booboo booker bookof boozer borbor borfee boroko borore bororo breefe breere breeze breffo brekke broker