bibin bibri biddu bidin bidni bidri bidur bindi bindu binub birdu birin birni birun birur bridi brind brini brinn brrrr brud- bruin bruiu bruni brunn bruri bruun buddu budur buird buirn bundi bundu bunin bunud bunun burdi burin burn- burri burru burud burun ddddd dibri diddu didin dindi dinur diurn dridu drinn druid druri dubbi dubi dubin dudin dundi dunin dunun durin i-bid ibbur ididn idunn iiiii iiuni inbin inbud indi- indin indir indri indru indur iniid inini inniu inrun inund inurn irbid irid- irind irinn nduru nibbi niibi niidu ninib ninur nu-nu nudi- nudur nunni nunun nurin nurri nurun ribbi ribin ridin rindi rindr rindu rubbi rubid rubin rudin ruiru rundi rundu runin u-dub u-n-i u-nii ubirr unbid unbud undid undri undub undun undur unini uninn unnun unnur unrid unrun unurn urin- urubu ururi uuuuu