-er ddd dde ddg ddl ddr de- ded dee deg del der dgd dge dgg dgl dgr dl- dld dle dlg dll dlr drd dre drg drl drr ed- edd ede edg edl edr eed eee eeg eel eer egd ege egg egl egr eld ele elg ell elr erd ere erg erl err g-d gdd gde gdl gdr ge- ged gee geg gel ger ggd ggg ggr gld gle glg gll glr grd gre grg grl grr ldd lde ldg ldl ldr led lee leg lel ler lgd lge lgg lgl lgr lld lle llg lll llr lrd lrg lrr rdd rde rdg rdl rdr re- red ree reg rel rer rgd rge rgg rgr rld rle rlg rll rlr rrd rrg rrl rrr