b-u bbb bbi bbk bbm bbu bi- bib bii bik bim biu biz bkb bkk bkm bmb bmi bmk bmm bmu bmz bub bui buk bum buu buz bzu bzz ibb ibi ibk ibm ibu ibz iib iii iim iiu ikb iki ikk iku im- imb imi imm imu imz iu- iub iui ium iuz izi izm izu izz k-z kbb kbi kbk kbm kbu kbz kib kii kik kim kiu kiz kkb kki kkk kkm kku kmb kmi kmk kmm kmu kmz kub kui kuk kum kuu mbb mbi mbk mbm mbu mi- mib mii mik mim miu miz mkb mkk mkm mku mkz mmb mmi mmk mmm mmu mmz mub mui muk mum muu mzb mzi mzm ubb ubi ubk ubu uib uii uim uiu ukb uki ukk uku ukz um- umb umi umm umu uum uuu uzb uzi uzu zbb zbm zib zik zim ziz zmb zmk zmm zub zui zuk zum zuz zzz