b-r-k bbgun bbook bkorn bo-bo bobko bobok bobr bogno bogon bogor bogu bogur bokko bokok bokor bokun bongo bongu bonon bonou booko boong boonk boorn booru borbo borgo borgu borko borku born- borno bornu boro- borok boron boroo borou borro borun bouko boung bourg bourn brobo brong bronk bronn brook broon brouk broun brrrr brugg brung brunk brunn bruno bruun bubon bugno bugok bugoo bugun bukk- buknu bukor bungo bungu bunko bunuk bunun buono burgk burgo burgu burn- buron buroo burro burru buruk burun gboko gnugo go-go go-on go-oo gobbo gogok gogon gogro gongo gonnn gonno gono- goobo goong gorgo gorno gorun goung gounn grgur grogg grokk grong gronk grono grook groon groun grrrr grubb grunk gubbo gubno gubru gukgo gungu gunnr gurko guroo gurro gurun gurur k-gun k-rob knokk knork knorr knurr ko-ko kobru kobuk kobun kogon kogro kogun kokko kokor kokou kokur konbu kongo kongu konno konnu konro konur koogu koonu koorn kooru korbo korgu korku korng korno koron koror korro koruk korun kouno krnuo kronk kroon kroun krunk kruun kubok kugur kukko kukok kukur kungu kunku kunur kurbu kurgo kurku kuruk ngoko ngong ngoro ngugu nguru nkubu nnooo no-go no-no nobob nobuo nokko nokon non-u nonno noonu norbu norok noron norro norun nu-nu nunon nunun nuoro nuruk nurun o-bon o-r-b oboro obrok ognon ogogo ogron ogugu okkur okobo okoro okrog okrug okubo okuku okuru ongon onoon onorn onour ooooo orgon orgun ornon orobo orono orrgo oruku oruro ouoro ourno ro-ro robbo robo- robon robor robun robur rogno rokkk rokon rongo rongu ronk- ronko ronno ronok roong rorbu rouko roung rubon rubor rungu runo- runon ubobo ugong ugro- ugrug ukobu ukong ukuug un-go ungok ungon ungur unkur unnun unnur unoor unorn unrug unrun unurn urgun urkun urnok uroob urour urubu uuork uuuuu