b-u bbb bbi bbm bbn bbu bi- bib bii bim bin biu biz bmb bmi bmm bmn bmu bmz bnb bni bnn bnu bnz bub bui bum bun buu buz bzn bzu bzz ibb ibi ibm ibn ibu ibz iib iii iim iin iiu im- imb imi imm imn imu imz in- inb ini inm inn inu iu- iub iui ium iuz izi izm izu izz mbb mbi mbm mbu mi- mib mii mim min miu miz mmb mmi mmm mmn mmu mmz mnb mni mnm mnn mnu mnz mub mui mum mun muu mzb mzi mzm mzn n-i nbb nbi nbm nbn nbu nib nii nim nin niu niz nmb nmi nmm nmn nmu nmz nnb nni nnm nnn nnu nnz nub nui num nun nuu nzb nzi nzz ubb ubi ubn ubu uib uii uim uin uiu um- umb umi umm umn umu un- unb uni unm unn unu uum uun uuu uzb uzi uzu zbb zbm zib zim zin ziz zmb zmm znn zub zui zum zun zuz zzz