b-u bbb bbe bbf bbi bbl bbm bbu be- beb bee bef bei bel bem beu bfb bfe bff bfi bfl bfm bfu bi- bib bie bif bii bil bim biu blb ble blf bli bll blm blu bmb bme bmf bmi bml bmm bmu bub bue buf bui bul bum buu ebb ebe ebf ebi ebl ebm ebu eeb eee eef eel eem ef- efb efe eff efi efl efm eib eie eif eii eil eim eiu elb ele elf eli ell elm elu em- emb eme emf emi eml emm emu eu- eub eue euf eui eul fbb fbe fbf fbi fbl fbm fbu feb fee fef fei fel fem feu ffe fff ffi ffl ffm ffu fib fie fif fii fil fim fiu flb fle flf fli fll flm flu fmb fme fmf fmi fml fmm fmu fub fue fuf fui ful fum fuu i-f ibb ibe ibf ibi ibl ibm ibu ie- iee ief iei iel iem ifb ife iff ifi ifl ifm ifu iib iie iif iii iil iim iiu il- ilb ile ilf ili ill ilm ilu im- imb ime imf imi iml imm imu iu- iub iue iui ium lbb lbe lbf lbi lbl lbm lbu leb lee lef lei lel lem leu lfb lfe lff lfi lfl lfm lfu lib lie lif lii lil lim liu llb lle llf lli lll llm llu lmb lme lmf lmi lml lmm lmu lub lue luf lui lul lum luu m-f mbb mbe mbf mbi mbl mbm mbu meb mee mef mei mel mem meu mfb mfe mff mfi mfl mfm mfu mi- mib mie mif mii mil mim miu mlb mle mlf mli mll mlm mlu mmb mme mmf mmi mml mmm mmu mub mue muf mui mul mum muu ubb ube ubf ubi ubl ubu ueb uee uef uei uel uem ufe uff ufi ufl ufm ufu uib uie uif uii uil uim uiu ulb ule ulf uli ull ulm ulu um- umb ume umf umi uml umm umu uue uum uuu