b-u bbb bbf bbi bbl bbm bbu bfb bff bfi bfl bfm bfu bi- bib bif bii bil bim biu blb blf bli bll blm blu bmb bmf bmi bml bmm bmu bub buf bui bul bum buu fbb fbf fbi fbl fbm fbu fff ffi ffl ffm ffu fib fif fii fil fim fiu flb flf fli fll flm flu fmb fmf fmi fml fmm fmu fub fuf fui ful fum fuu i-f ibb ibf ibi ibl ibm ibu ifb iff ifi ifl ifm ifu iib iif iii iil iim iiu il- ilb ilf ili ill ilm ilu im- imb imf imi iml imm imu iu- iub iui ium lbb lbf lbi lbl lbm lbu lfb lff lfi lfl lfm lfu lib lif lii lil lim liu llb llf lli lll llm llu lmb lmf lmi lml lmm lmu lub luf lui lul lum luu m-f mbb mbf mbi mbl mbm mbu mfb mff mfi mfl mfm mfu mi- mib mif mii mil mim miu mlb mlf mli mll mlm mlu mmb mmf mmi mml mmm mmu mub muf mui mul mum muu ubb ubf ubi ubl ubu uff ufi ufl ufm ufu uib uif uii uil uim uiu ulb ulf uli ull ulm ulu um- umb umf umi uml umm umu uum uuu