-er a-a aaa aad aae aag aam aar aax ad- ada add ade adg adm adr adx aea aed aee aeg aem aer aex ag- aga agd age agg agm agr agx ama amd ame amg amm amr amx ar- ara ard are arg arm arr arx ax- axa axe axm axr axx daa dad dae dag dam dar dax dda ddd dde ddg ddm ddr ddx de- dea ded dee deg dem der dex dga dgd dge dgg dgm dgr dma dmd dme dmg dmm dmr dmx dra drd dre drg drm drr drx dxd dxr dxx eaa ead eae eag eam ear eax ed- eda edd ede edg edm edr edx eea eed eee eeg eem eer eex ega egd ege egg egm egr egx em- ema emd eme emg emm emr emx era erd ere erg erm err ex- exa exd exe exr exx g-d gaa gad gae gag gam gar gda gdd gde gdm gdr gdx ge- gea ged gee geg gem ger gex gga ggd ggg ggm ggr gma gmd gme gmg gmm gmr gmx gra grd gre grg grm grr grx gxa m-r maa mad mae mag mam mar max mda mdd mde mdg mdm mdr mdx mea med mee meg mem mer mex mga mgd mge mgm mgr mgx mma mmd mme mmg mmm mmr mmx mra mrd mre mrg mrm mrr mrx mxa mxd mxr ra- raa rad rae rag ram rar rax rda rdd rde rdg rdm rdr rdx re- rea red ree reg rem rer rex rga rgd rge rgg rgr rgx rma rmd rme rmg rmm rmr rmx rra rrd rrg rrm rrr rxr xaa xad xag xam xar xda xde xdm xdr xed xee xeg xem xer xex xge xma xmd xmg xmm xmr xmx xrd xrx xxx