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 ooher ooooh ooooo oreo- orere orero orfeh orfeo orfoe orfor orobe orobo oroer oroke rebbe reber reefe reere reerh refer reffe reffo reher rehoe rekke rere- reree rerob rheo- rhoeo ro-ro robbe robbo rober robo- robor roero roffe rofor rohff rohob rokee roker rokke rokkk rooer roofe rooke rookh roore rorer rorke