-er ddd dde ddg ddm ddr de- ded dee deg dem der dgd dge dgg dgm dgr dmd dme dmg dmm dmr drd dre drg drm drr ed- edd ede edg edm edr eed eee eeg eem eer egd ege egg egm egr em- emd eme emg emm emr erd ere erg erm err g-d gdd gde gdm gdr ge- ged gee geg gem ger ggd ggg ggm ggr gmd gme gmg gmm gmr grd gre grg grm grr m-r mdd mde mdg mdm mdr med mee meg mem mer mgd mge mgm mgr mmd mme mmg mmm mmr mrd mre mrg mrm mrr rdd rde rdg rdm rdr re- red ree reg rem rer rgd rge rgg rgr rmd rme rmg rmm rmr rrd rrg rrm rrr