a-a a-b aaa aab aag aak aam aau ab- aba abb abg abk abm abu ag- aga agb agg agk agm agu aka akb akg akk akm aku ama amb amg amk amm amu au- aua aub aug auk aum b-u baa bab bag bak bam bau bba bbb bbg bbk bbm bbu bga bgb bgg bgk bgm bgu bka bkb bkg bkk bkm bma bmb bmg bmk bmm bmu bua bub bug buk bum buu gaa gab gag gak gam gau gba gbg gbk gbm gbu gga ggb ggg ggm ggu gka gkb gkm gma gmb gmg gmm gu- gua gub gug guk gum guu ka- kaa kab kag kak kam kau kba kbb kbk kbm kbu kga kgb kgm kgu kkb kkk kkm kku kma kmb kmg kmk kmm kmu kub kug kuk kum kuu maa mab mag mak mam mau mba mbb mbg mbk mbm mbu mga mgb mgk mgm mgu mka mkb mkg mkk mkm mku mma mmb mmg mmk mmm mmu mua mub mug muk mum muu ua- uaa uab uag uak uam uau uba ubb ubg ubk ubu uga ugb ugg ugk ugm ugu uka ukb ukk uku um- uma umb umg umm umu uua uug uum uuu