-er bbb bbe bbf bbh bbk bbo bbr be- beb bee bef beh bek beo ber bfb bfe bff bfh bfo bfr bhb bhe bhf bhh bhk bho bhr bkb bke bkf bkk bko bkr bob boe bof boh bok boo bor brb bre brf brh brk bro brr ebb ebe ebf ebh ebk ebo ebr eeb eee eef eek eeo eer ef- efb efe eff efh efo efr ehb ehe ehf ehh eho ehr ekb eke ekf ekh eko ekr eo- eob eoe eof eoh eok eoo eor erb ere erf erh erk ero err fbb fbe fbf fbh fbk fbo fbr feb fee fef feh fek feo fer ffe fff ffh ffk ffo ffr fhb fhe fhf fhh fho fhr fkb fkf fkk fob foe fof foh fok foo for frb fre frf frh frk fro frr hbb hbe hbf hbh hbk hbo hbr he- heb hee hef heh hek heo her hfb hfe hff hfh hfk hfo hfr hhb hhe hhf hhh hhk hho hhr hkb hkf hkh hkk hko hkr hob hoe hof hoh hok hoo hor hr- hrb hre hrf hrh hrk hro hrr kbb kbe kbf kbh kbk kbo kbr ke- keb kee kef keh kek keo ker kff kfh kfo khe khf khh khk kho khr kkb kke kkh kkk kkr kob koe kof koh kok koo kor krf krk kro krr ob- obb obe obf obh obk obo obr oeb oee oef oeh oeo oer of- ofb ofe off ofo ofr ohe ohf ohh oho ohr okb oke okk oko okr oo- oob oof ooh ook ooo oor or- orb ore orf orh ork oro orr rbb rbe rbf rbh rbk rbo rbr re- reb ree ref reh rek reo rer rfb rfe rff rfh rfk rfo rfr rh- rhb rhe rhf rhh rho rhr rkb rke rkf rkk rko rob roe rof roh rok roo ror rrb rrf rrh rrk rrr

bbbb bbeb bebb bebe bebo beeb beef beek beer befe beff befo behr beke beko beo- beof beok beor bere berk bero berr bher bhff bhor bobb bobe bobo boee boef boeo boer bofe boff bofh boho bohr boke boko boob booe boof booh book boor bor- bore borf borh bork boro borr breb bree bref brek breo brer brkb brob broe broh brok broo bror brrr ebbo ebbr eber eboe eboo ebor ebro eeee eefe eeke eero efbr efeo efke efor eheh eher ehre ekeb ekek eker ekho eore erbb erbe ereb erer erke erob eroe eroo erre erro f--k febo feeb feek feer fefe feff fefo fehr feke feko feof feoh ferb fere ferk fero ferr ffee ffff ffrr foer fofo fohr foke foof fook for- forb fore fork foro forr free freo frob froe froh hebb hebe hebo hebr heeb heef heek heer hefe hehe heho heke heor herb here herk hero herr hhhh hhof hobe hobo hoek hoer hofe hoff hohe hoho hoke hoko hooe hoof hook hoor hore hork horo horr hree hrob kbbb kbbe kbbf kbbk kbbo kbbr kbeb kbee kbef kbeh kbek kbeo kber kbfb kbff kbfk kbfo kbfr kbhb kbhe kbhh kbhr kbkb kbkf kbkk kbko kbkr kbob kboe kbok kboo kbrb kbre kbrf kbrh kbrk kbro kebb kebe kebr keef keeh keek keer kefb keff kefh kefr kehk kehr kekb keke keko keok ker- kerb kere kerf kerk kero kerr kfbk kfeb kfer kffb kfff kffk kfkb kfok kfoo kfor kfre kfrh kfro kfrr khbr kheb kher khfr khhk khho khke khkk khkr khob khoe khok khor khrk khro khrr kkbb kkbe kkbo kkbr kkfr kkhb kkhh kkhk kkhr kkkk kkob kkoh kkoo kkor kkrb kkre kkrf kkrh kkrk kkro kkrr kobb kobe kobk kobo kobr kofe koff kofh kofk kofo kohh koho kohr kokb koke kokf kokh kokk koko kokr koob kook kooo koor korb kore korf kork koro korr krbb krbe krbk krbr kreb kree kref kreh krek kreo krfe krff krfo krke krkh krkk krko krkr krob kroe krof kroh krok kroo kror krrb krre krrf krrk krro krrr o-eo obbo ober obkb oboe obok obor obre obrh obro oere ofek ofer off- offe offh offo offr ofor ofre ohbe ohee oher ohho ohob ohoh ohok ohre okeh oker okko okok okor okre okro oobe ooer ooff ooho oooh oooo oore orbb orbe orbo ore- oreb oreh orek oreo orer orfe orff orhe orke orko oro- oroe orof orok oror orro rbbb rbbr rboh rebb rebe rebk rebo reeb reef reek refe reff refr rehb rehe reke reko reof rere rero rfef rheb rhee rheo rhob rhoh rkkf rob- robb robe robo roer rofe roff rofo rohe rohr roke rokh rokk roko rokr roob roof rook roor rore rork roro rrrr

b-r-k bbbee bbook be-er be-ro bebek beber beebe beeke beffe befoe befor beher behof beker bekke bekko bekok beofe beoff berbe bereh berek berhe berk- berke berko berob beroe berok beror berre bheer bhook bhore bo-bo bo-ho bobek bobko bobok bobr bobre boeke boero boffo bohok bohor bokeh bokeo boker bokko bokok bokor booer booke booko boore borbo boree borek borer borko boro- borok boroo borre borro breef breek breer breke breo- brere brobo broek broer broke brook brrrr ebber ebeko ebook eeeee efere effer efore eheke ekeko ekker eofor eorre erbbe erber erere erkko eroor erore error febre feeor feere fefor feher feoff ferr- ferre ferro fokke foore fore- foreh foreo forro freeh freek freer freke frere frobe frore h-e-b he-he he-ro hebbe hebe- heber heere hefer heffe heker hekk- heore herek herke heroe herre herro hhhhh ho-ho ho-oh hoboe hobor hobro hoeke hofer hohoe hoker hokke hooer hooke hoore horeb horhe horre horro hrbek hrere k-rob kebbe kebek keber kebob keefe keeho keere kefee kehek kehoe kerek kerre kheer kherf khoro ko-ko kobee kober koker kokko kokor kokre korbe korbo koreh korek korff korke koror korro kre-o kreef kreek kreke kreo- kroke o-fer o-r-b obhor oboro obreb obrok offek offer offof offre ofher oh-oh oh-ok ohfoo ohrob okeke okere okhre okker okobo okoho okoro oo-er