a-a a-b aaa aab aag aam aan aau ab- aba abb abg abm abn abu ag- aga agb agg agm agn agu ama amb amg amm amn amu an- ana anb ang anm ann anu au- aua aub aug aum aun b-u baa bab bag bam ban bau bba bbb bbg bbm bbn bbu bga bgb bgg bgm bgn bgu bma bmb bmg bmm bmn bmu bna bnb bng bnn bnu bua bub bug bum bun buu gaa gab gag gam gan gau gba gbg gbm gbn gbu gga ggb ggg ggm ggn ggu gma gmb gmg gmm gmn gna gnb gnm gnn gnu gu- gua gub gug gum gun guu maa mab mag mam man mau mba mbb mbg mbm mbu mga mgb mgm mgn mgu mma mmb mmg mmm mmn mmu mna mnb mng mnm mnn mnu mua mub mug mum mun muu naa nab nag nam nan nau nba nbb nbg nbm nbn nbu nga ngb ngg ngm ngn ngu nma nmb nmg nmm nmn nmu nna nnb nng nnm nnn nnu nua nub nug num nun nuu ua- uaa uab uag uam uan uau uba ubb ubg ubn ubu uga ugb ugg ugm ugn ugu um- uma umb umg umm umn umu un- una unb ung unm unn unu uua uug uum uun uuu