b-u bbb bbi bbm bbn bbu bi- bib bii bim bin biu bmb bmi bmm bmn bmu bnb bni bnn bnu bub bui bum bun buu ibb ibi ibm ibn ibu iib iii iim iin iiu im- imb imi imm imn imu in- inb ini inm inn inu iu- iub iui ium mbb mbi mbm mbu mi- mib mii mim min miu mmb mmi mmm mmn mmu mnb mni mnm mnn mnu mub mui mum mun muu n-i nbb nbi nbm nbn nbu nib nii nim nin niu nmb nmi nmm nmn nmu nnb nni nnm nnn nnu nub nui num nun nuu ubb ubi ubn ubu uib uii uim uin uiu um- umb umi umm umn umu un- unb uni unm unn unu uum uun uuu