b-u bbb bbe bbg bbm bbn bbu be- beb bee beg bem ben beu bgb bge bgg bgm bgn bgu bmb bme bmg bmm bmn bmu bnb bne bng bnn bnu bub bue bug bum bun buu ebb ebe ebg ebm ebn ebu eeb eee eeg eem een egb ege egg egm egn egu em- emb eme emg emm emn emu en- enb ene eng enm enn enu eu- eub eue eug eun gbe gbg gbm gbn gbu ge- geb gee geg gem gen geu ggb ggg ggm ggn ggu gmb gme gmg gmm gmn gnb gne gnm gnn gnu gu- gub gue gug gum gun guu mbb mbe mbg mbm mbu meb mee meg mem men meu mgb mge mgm mgn mgu mmb mme mmg mmm mmn mmu mnb mne mng mnm mnn mnu mub mue mug mum mun muu nbb nbe nbg nbm nbn nbu ne- neb nee neg nem nen neu ngb nge ngg ngm ngn ngu nmb nme nmg nmm nmn nmu nnb nne nng nnm nnn nnu nub nue nug num nun nuu ubb ube ubg ubn ubu ueb uee ueg uem uen ugb uge ugg ugm ugn ugu um- umb ume umg umm umn umu un- unb une ung unm unn unu uue uug uum uun uuu