b-u bbb bbe bbg bbl bbn bbu be- beb bee beg bel ben beu bgb bge bgg bgl bgn bgu blb ble blg bll bln blu bnb bne bng bnl bnn bnu bub bue bug bul bun buu ebb ebe ebg ebl ebn ebu eeb eee eeg eel een egb ege egg egl egn egu elb ele elg ell eln elu en- enb ene eng enl enn enu eu- eub eue eug eul eun gbe gbg gbl gbn gbu ge- geb gee geg gel gen geu ggb ggg ggn ggu glb gle glg gll gln glu gnb gne gnl gnn gnu gu- gub gue gug gul gun guu lbb lbe lbg lbl lbu leb lee leg lel len leu lgb lge lgg lgl lgn lgu llb lle llg lll lln llu lnb lne lng lnl lnn lnu lub lue lug lul lun luu nbb nbe nbg nbl nbn nbu ne- neb nee neg nel nen neu ngb nge ngg ngl ngn ngu nlb nle nlg nll nln nlu nnb nne nng nnl nnn nnu nub nue nug nul nun nuu ubb ube ubg ubl ubn ubu ueb uee ueg uel uen ugb uge ugg ugl ugn ugu ulb ule ulg ull uln ulu un- unb une ung unl unn unu uue uug uun uuu