b-u bbb bbe bbl bbm bbn bbt bbu be- beb bee bel bem ben bet beu blb ble bll blm bln blt blu bmb bme bml bmm bmn bmt bmu bnb bne bnl bnn bnt bnu btb bte btl btm btn btt btu bub bue bul bum bun but buu ebb ebe ebl ebm ebn ebt ebu eeb eee eel eem een eet elb ele ell elm eln elt elu em- emb eme eml emm emn emt emu en- enb ene enl enm enn ent enu etb ete etl etm etn ett etu eu- eub eue eul eun eut lbb lbe lbl lbm lbt lbu leb lee lel lem len let leu llb lle lll llm lln llt llu lmb lme lml lmm lmn lmt lmu lnb lne lnl lnm lnn lnt lnu ltb lte ltl ltm ltt ltu lub lue lul lum lun lut luu mbb mbe mbl mbm mbt mbu meb mee mel mem men met meu mlb mle mll mlm mln mlt mlu mmb mme mml mmm mmn mmt mmu mnb mne mnl mnm mnn mnt mnu mtb mte mtl mtm mtn mtt mtu mub mue mul mum mun mut muu nbb nbe nbl nbm nbn nbt nbu ne- neb nee nel nem nen net neu nlb nle nll nlm nln nlt nlu nmb nme nml nmm nmn nmt nmu nnb nne nnl nnm nnn nnt nnu ntb nte ntm ntn ntt ntu nub nue nul num nun nut nuu tbb tbe tbl tbm tbn tbt tbu te- teb tee tel tem ten tet teu tle tll tlm tln tlt tlu tmb tme tml tmm tmn tmt tmu tnb tne tnl tnm tnn tnt ttb tte ttl ttm ttn ttt ttu tub tue tul tum tun tut tuu ubb ube ubl ubn ubt ubu ueb uee uel uem uen uet ulb ule ull ulm uln ult ulu um- umb ume uml umm umn umt umu un- unb une unl unm unn unt unu utb ute utl utm utn utt utu uue uum uun uut uuu