b-u bbb bbi bbm bbn bbr bbu bi- bib bii bim bin bir biu biv bmb bmi bmm bmn bmr bmu bmv bnb bni bnn bnr bnu bnv brb bri brm brn brr bru brv bub bui bum bun bur buu bvb bvi bvm bvn bvr bvu bvv i-v ibb ibi ibm ibn ibr ibu ibv iib iii iim iin iir iiu im- imb imi imm imn imu imv in- inb ini inm inn inr inu inv ir- irb iri irm irn irr iru irv iu- iub iui ium iur ivb ivi ivr ivu ivv m-r m-v mbb mbi mbm mbr mbu mbv mi- mib mii mim min mir miu miv mmb mmi mmm mmn mmr mmu mmv mnb mni mnm mnn mnr mnu mrb mri mrm mrn mrr mru mrv mub mui mum mun mur muu mvb mvi mvm mvn mvr mvv n-i nbb nbi nbm nbn nbr nbu nbv nib nii nim nin nir niu niv nmb nmi nmm nmn nmr nmu nnb nni nnm nnn nnu nnv nrb nri nrm nrn nrr nru nrv nub nui num nun nur nuu nuv nvb nvi nvm nvn nvu nvv rbb rbi rbm rbn rbr rbu rib rii rim rin rir riv rmb rmi rmm rmn rmr rmv rnb rni rnm rnn rnr rnu rnv rrb rri rrm rrn rrr rru rub rui rum run rur ruu ruv rvb rvi rvm rvn rvr rvu rvv ubb ubi ubn ubr ubu ubv uib uii uim uin uir uiu um- umb umi umm umn umr umu un- unb uni unm unn unr unu unv ur- urb uri urm urn urr uru uum uun uur uuu uvb uvm uvu uvv vbi vbm vbr vbv vi- vib vii vim vin vir viu viv vm- vmi vmm vmn vmr vmu vn- vni vnm vnr vnu vnv vrb vri vrm vrn vrr vru vum vur vuv vvb vvi vvm vvr vvv