a-a a-b a-t aaa aab aag aam aat aau ab- aba abb abg abm abt abu ag- aga agb agg agm agt agu ama amb amg amm amt amu at- ata atb atg atm att atu au- aua aub aug aum aut b-u baa bab bag bam bat bau bba bbb bbg bbm bbt bbu bga bgb bgg bgm bgt bgu bma bmb bmg bmm bmt bmu bta btb btg btm btt btu bua bub bug bum but buu gaa gab gag gam gat gau gba gbg gbm gbt gbu gga ggb ggg ggm ggt ggu gma gmb gmg gmm gmt gta gtb gtg gtm gtt gtu gu- gua gub gug gum gut guu maa mab mag mam mat mau mba mbb mbg mbm mbt mbu mga mgb mgm mgt mgu mma mmb mmg mmm mmt mmu mta mtb mtg mtm mtt mtu mua mub mug mum mut muu taa tab tag tam tat tau tba tbb tbg tbm tbt tbu tga tgb tgg tgm tgt tgu tma tmb tmg tmm tmt tmu tta ttb ttg ttm ttt ttu tua tub tug tum tut tuu ua- uaa uab uag uam uat uau uba ubb ubg ubt ubu uga ugb ugg ugm ugt ugu um- uma umb umg umm umt umu uta utb utm utt utu uua uug uum uut uuu