a-a a-b aaa aab aag aam aau aay ab- aba abb abg abm abu aby ag- aga agb agg agm agu agy ama amb amg amm amu amy au- aua aub aug aum ay- aya ayu b-u baa bab bag bam bau bay bba bbb bbg bbm bbu bby bga bgb bgg bgm bgu bma bmb bmg bmm bmu bua bub bug bum buu buy by- bya byg bym byu gaa gab gag gam gau gay gba gbg gbm gbu gby gga ggb ggg ggm ggu gma gmb gmg gmm gmy gu- gua gub gug gum guu guy gy- gya gyb gym maa mab mag mam mau may mba mbb mbg mbm mbu mga mgb mgm mgu mgy mma mmb mmg mmm mmu mua mub mug mum muu muy my- mya myb myg mym myu ua- uaa uab uag uam uau uay uba ubb ubg ubu uby uga ugb ugg ugm ugu um- uma umb umg umm umu uua uug uum uuu uyu yaa yab yag yam yau yay ybg ybm yby yga ygm yma ymg ymm yua yug yum yuu yuy yyb yyg yyu yyy