-er b-u bbb bbe bbi bbm bbn bbr bbu be- beb bee bei bem ben ber beu bev bi- bib bie bii bim bin bir biu biv bmb bme bmi bmm bmn bmr bmu bmv bnb bne bni bnn bnr bnu bnv brb bre bri brm brn brr bru brv bub bue bui bum bun bur buu bvb bve bvi bvm bvn bvr bvu bvv ebb ebe ebi ebm ebn ebr ebu ebv eeb eee eem een eer eev eib eie eii eim ein eir eiu eiv em- emb eme emi emm emn emr emu emv en- enb ene eni enm enn enr enu env erb ere eri erm ern err eru erv eu- eub eue eui eun eur euv evb eve evi evm evn evr evv i-v ibb ibe ibi ibm ibn ibr ibu ibv ie- iee iei iem ien ier iev iib iie iii iim iin iir iiu im- imb ime imi imm imn imu imv in- inb ine ini inm inn inr inu inv ir- irb ire iri irm irn irr iru irv iu- iub iue iui ium iur ivb ive ivi ivr ivu ivv m-r m-v mbb mbe mbi mbm mbr mbu mbv meb mee mei mem men mer meu mev mi- mib mie mii mim min mir miu miv mmb mme mmi mmm mmn mmr mmu mmv mnb mne mni mnm mnn mnr mnu mrb mre mri mrm mrn mrr mru mrv mub mue mui mum mun mur muu mvb mve mvi mvm mvn mvr mvv n-i nbb nbe nbi nbm nbn nbr nbu nbv ne- neb nee nei nem nen ner neu nev nib nie nii nim nin nir niu niv nmb nme nmi nmm nmn nmr nmu nnb nne nni nnm nnn nnu nnv nrb nre nri nrm nrn nrr nru nrv nub nue nui num nun nur nuu nuv nvb nve nvi nvm nvn nvu nvv rbb rbe rbi rbm rbn rbr rbu re- reb ree rei rem ren rer reu rev rib rie rii rim rin rir riv rmb rme rmi rmm rmn rmr rmv rnb rni rnm rnn rnr rnu rnv rrb rri rrm rrn rrr rru rub rue rui rum run rur ruu ruv rvb rve rvi rvm rvn rvr rvu rvv ubb ube ubi ubn ubr ubu ubv ueb uee uei uem uen uer uib uie uii uim uin uir uiu um- umb ume umi umm umn umr umu un- unb une uni unm unn unr unu unv ur- urb ure uri urm urn urr uru uue uum uun uur uuu uvb uve uvm uvu uvv v-e vbi vbm vbr vbv veb vee vei vem ven ver veu vi- vib vie vii vim vin vir viu viv vm- vmi vmm vmn vmr vmu vn- vni vnm vnr vnu vnv vrb vre vri vrm vrn vrr vru vue vum vur vuv vvb vvi vvm vvr vvv