b-u bbb bbe bbf bbi bbk bbl bbm bbu be- beb bee bef bei bek bel bem beu bez bfb bfe bff bfi bfl bfm bfu bfz bi- bib bie bif bii bik bil bim biu biz bkb bke bkf bkk bkl bkm blb ble blf bli blk bll blm blu blz bmb bme bmf bmi bmk bml bmm bmu bmz bub bue buf bui buk bul bum buu buz bze bzf bzu bzz ebb ebe ebf ebi ebk ebl ebm ebu eeb eee eef eek eel eem ef- efb efe eff efi efl efm eib eie eif eii eik eil eim eiu ekb eke ekf eki ekl eku elb ele elf eli elk ell elm elu elz em- emb eme emf emi emk eml emm emu eu- eub eue euf eui eul eze ezf ezz fbb fbe fbf fbi fbk fbl fbm fbu feb fee fef fei fek fel fem feu fez ffe fff ffi ffk ffl ffm ffu ffz fib fie fif fii fik fil fim fiu fiz fkb fkf fki fkk fkl fkm flb fle flf fli fll flm flu fmb fme fmf fmi fml fmm fmu fub fue fuf fui fuk ful fum fuu i-f ibb ibe ibf ibi ibk ibl ibm ibu ibz ie- iee ief iei iek iel iem ifb ife iff ifi ifl ifm ifu ifz iib iie iif iii iil iim iiu ikb ike ikf iki ikk ikl iku il- ilb ile ilf ili ilk ill ilm ilu ilz im- imb ime imf imi iml imm imu imz iu- iub iue iui ium iuz ize izi izm izu izz k-z kbb kbe kbf kbi kbk kbl kbm kbu kbz ke- keb kee kef kei kek kel kem kez kff kfi kfm kfu kib kie kif kii kik kil kim kiu kiz kkb kke kki kkk kkl kkm kku kl- klb klf kli klm klu klz kmb kme kmf kmi kmk kml kmm kmu kmz kub kue kui kuk kul kum kuu lbb lbe lbf lbi lbk lbl lbm lbu leb lee lef lei lek lel lem leu lez lfb lfe lff lfi lfk lfl lfm lfu lib lie lif lii lik lil lim liu liz lkb lkl llb lle llf lli llk lll llm llu llz lmb lme lmf lmi lmk lml lmm lmu lub lue luf lui luk lul lum luu luz lzi lzu m-f mbb mbe mbf mbi mbk mbl mbm mbu meb mee mef mei mek mel mem meu mez mfb mfe mff mfi mfl mfm mfu mfz mi- mib mie mif mii mik mil mim miu miz mkb mke mkk mkl mkm mku mkz mlb mle mlf mli mlk mll mlm mlu mmb mme mmf mmi mmk mml mmm mmu mmz mub mue muf mui muk mul mum muu mzb mzf mzi mzm ubb ube ubf ubi ubk ubl ubu ueb uee uef uei uel uem ufe uff ufi ufl ufm ufu uib uie uif uii uil uim uiu ukb uke ukf uki ukk ukl uku ukz ulb ule ulf uli ulk ull ulm ulu um- umb ume umf umi uml umm umu uue uum uuu uzb uzi uzu zbb zbl zbm zeb zee zef zek zel zem zez zib zie zif zik zil zim ziz zmb zmk zmm zub zui zuk zul zum zuz zzz