b-r-k bibin bibri bikin bilbi bili- bilin billi billu binub birin birni birun birur blikk blini blink blinn blunk blurb blurr brill brini brink brinn brnik brrrr bruik bruin bruiu brull bruni brunk brunn bruri bruun buiki buirn bukin bukk- bukki buknu bulb- bulbi bulin buliu bulki bull- bulli bulul bulun bunin bunki bunuk bunun burin burli burn- burri burru buruk burun ibbur ibill iblin ibrik ibuki iiiii iiuni ikiru iklin ikulu ikuri ilkin illin illui illuk ilulu inbin inili inini inink inkin inniu inrun inurn iriki irill irink irinn iuliu kibbi kibi- kibun kiiki kiili kiinu kikin kikki kikuu kilin kill- killi kin-u kinin kiril kirin kirki kirnu kirui klink kluki klunk knibb knill knurl knurr kribi krill krini krink krubi kruki krull krunk kruun kubik kubin kubri kubul kukri kukui kukur kulik kulin kulli kullu kului kulul kulun kulur kunbi kunin kunku kunri kunur kurbu kurik kurin kurir kurki kurku kurli kurlu kurni kuruk libin libri libru libun liiku likin likir likli lilin liliu lilli lilun linin linlu lirik liril lirui liruk liuli llink lubin lubki lubun lubur lukin lukir lulin lulli lulul luni- lunik lunin lurin lurun luuri nibbi niibi nikin nikki nilin ninib ninku ninur nkubu nlink nu-nu nulli nunki nunni nunun nurik nurin nurlu nurri nuruk nurun ribbi ribin rikki rinku rubbi rubik rubin ruili ruiru rulli runin rurik rurki u-n-i u-nii ubirr ublik ukkin ullin ullur ulrik ululu uluru unini uninn unkur unnun unnur unrun unurn urin- urkun urubu uruli ururi uuuuu