bibin bibri binit binub bipib bipin birin birni birun birur bitit bitru bitti bitun bitup brini brinn brint britt brrrr bruin bruit bruiu bruni brunn brunt bruri bruun btr-t buirn bunin bunun bunut burin burn- burnt burri burru burtt burun burut butin butit butut i-pin ibbur ibtin iiiii iitti iiuni inbin inini inipi innit inniu innti input inrun intpr inuit inurn ipini ipiti ipubi irbit irinn irpin irrit irupi itbit itrip ittti itu-r itu-t ituni ituri iturn ituru itutu iunit iuput n-p-n nibbi niibi niiip ninib ninti nintu ninur ninut nipin nipit nippu nipri nipup nirit nitin nitr- nitti ntini ntnui nu-nu nuiit nunit nunni nunun nupur nurin nurit nurri nurun nutri p-n-p piiri pinin pinit pinn- pinni pinup pipit pippi pipri pirin pirni pirri pirui pitin pitip pitri pitru pitti piuri piuru pptnt priit print priti pritt prntr pruin prun- pruni prunt ptprb ptprn ptprr ptprt ptpru punbb punti pupin pupri purin putin putit putt- putti puttu putun putup puuri ribbi ribin ribup rintt ripit ripup rirpu rubbi rubin rubup ruiru runin runit runup rupin rupit rutin ruutu t-nut tbtbt tbutt ti-ti tibbi tibbu tibin tibni tibur tinui tinun tipin tipit tippi tippu tipup tirit tirru tirur titii titin titpn titti titup tntnt tribu triin triip trini tripi tripp tript trit- tritn tritt trpin trubu truit trupt ttttt tubi- tubin tubri tunip tuppi turbi turbt turin turit turn- turnp turnt turnu turri turtu turup turut tutin tutti tutun tuubi tuuri tuuru u-bit u-n-i u-nii ubirr uitti unbit unini uninn unipi uniti unnun unnur unnut unpin unput unrip unrun unurn upput uprun urin- urpin urubu uruit ururi uruti urutu uttur uturn uturu uuuuu