a-a aaa aad aae aaf aag aam ad- ada add ade adf adg adm aea aed aee aef aeg aem af- afa afd afe aff afg afm ag- aga agd age agf agg agm ama amd ame amf amg amm daa dad dae daf dag dam dda ddd dde ddf ddg ddm de- dea ded dee def deg dem dfa dfd dfe dff dfg dfm dga dgd dge dgf dgg dgm dma dmd dme dmf dmg dmm eaa ead eae eaf eag eam ed- eda edd ede edf edg edm eea eed eee eef eeg eem ef- efa efd efe eff efg efm ega egd ege egf egg egm em- ema emd eme emf emg emm faa fad fae faf fag fam fda fdd fde fdf fdg fdm fea fed fee fef feg fem ffa ffd ffe fff ffg ffm fga fgd fge fgf fgg fgm fma fmd fme fmf fmg fmm g-d gaa gad gae gaf gag gam gda gdd gde gdf gdm ge- gea ged gee gef geg gem gfa gfd gfe gff gfm gga ggd ggg ggm gma gmd gme gmf gmg gmm m-f maa mad mae maf mag mam mda mdd mde mdf mdg mdm mea med mee mef meg mem mfa mfd mfe mff mfg mfm mga mgd mge mgf mgm mma mmd mme mmf mmg mmm