a-a aaa aae aag aam aax aea aee aeg aem aex ag- aga age agg agm agx ama ame amg amm amx ax- axa axe axm axx eaa eae eag eam eax eea eee eeg eem eex ega ege egg egm egx em- ema eme emg emm emx ex- exa exe exx gaa gae gag gam ge- gea gee geg gem gex gga ggg ggm gma gme gmg gmm gmx gxa maa mae mag mam max mea mee meg mem mex mga mge mgm mgx mma mme mmg mmm mmx mxa xaa xag xam xee xeg xem xex xge xma xmg xmm xmx xxx