-aaa- aabaa aabba aabra aakko aarau abaab ababa ababu abaka abako abara abaru abbar abbou abbur abkar abkoo aboab abobo abook abora abrak abrar abuko abura aburr akaba akabo akaoa akbar akbou akbuk akkra akkub akkur akobo akoka akoko akrak akrar akro- akuku akura ar-ab arab- araba arabo araku arara araru arbab arbar arbok arbor arkar aroab aroar aroba aroor arora arrak arrau arrou arrua aruaa aruba arura aruru aukra aurar auro- auroa auror aurra b-r-k babak babar babau babka baboo babou babra babur bakar bakau bakka bakoa bakra bakur baoro baraa barab barak barao barar barba barbu bark- barka baro- baroa barok baroo baror barra barro barru barua baubo baura bauru bbook bo-bo boaro bobak bobar bobko bobok bobr bokaa bokko bokok bokor booba booko boora booru borak borau borba borbo borka borko borku boro- boroa borok boroo borou borra borro bouar bouba bouka bouko boura braak brako broak brobo brook brora brouk brrar brrrr bubba bubka bukk- bukor buraa burak burao burka buroo burra burro burru buruk k-a-o k-rab k-rob kaaba kaabu kaaru kabaa kabab kabak kabar kabba kabob kabou kabro kabru kabua kabur kakao kakar kakau kakka kakko kakku kako- kakra kakur kaooa kaoru karak karbu karka karku karob karok karoo karuk karur kauko kaura kauro kauru ko-ko koara kobar kobra kobru kobuk kokab kokak kokka kokko kokor kokou kokra kokur kooba kooka kooru korab korak korba korbo korku koroa koror korra korro koruk kouba kouka koura kraak kraar kraka kuaka kuara kubau kubba kubok kubra kukak kukar kukka kukko kukok kukua kukur kurak kurar kurbu kurka kurku kuruk o-r-b oaror obaba obaku obara obora oboro obrab obrok okaka okara okkur okobo okoro okubo okuka okuku okura okuru ooooo oraba orara orobo oroua oruku oruro ouaka ouako ouara ouoro ourba ra-ra raaba raaor rabab rabak rabba rabor rabou rakaa rakab ro-ro roark robab robak robar robbo robo- robor robur rokkk rokua rooba rorbu rorra rouba rouko roura ruaka ruark rubab rubba rubor rubra rurak rurka uaroo ubobo ukobu uraba urbar uroob urour urrao urubu uuork uuuuu