-er ddd dde ddf ddg ddl ddr dds de- ded dee def deg del der des dfd dfe dff dfg dfl dfr dfs dgd dge dgf dgg dgl dgr dgs dl- dld dle dlf dlg dll dlr dls drd dre drg drl drr drs dsd dse dsf dsg dsl dsr dss ed- edd ede edf edg edl edr eds eed eee eef eeg eel eer ees ef- efd efe eff efg efl efr efs egd ege egf egg egl egr egs eld ele elf elg ell elr els erd ere erf erg erl err ers es- esd ese esf esg esl esr ess fdd fde fdf fdg fdl fdr fds fed fee fef feg fel fer fes ffd ffe fff ffg ffl ffr ffs fgd fge fgf fgg fgl fgr fgs fld fle flf flg fll flr fls frd fre frf frg frl frr frs fsd fse fsf fsg fsl fsr fss g-d gdd gde gdf gdl gdr gds ge- ged gee gef geg gel ger ges gfd gfe gff gfl gfr gfs ggd ggg ggr ggs gld gle glf glg gll glr gls grd gre grf grg grl grr grs gsd gse gsf gsg gsl gsr gss ldd lde ldf ldg ldl ldr lds led lee lef leg lel ler les lfd lfe lff lfg lfl lfr lfs lgd lge lgf lgg lgl lgr lgs lld lle llf llg lll llr lls lrd lrf lrg lrr lrs lsd lse lsf lsg lsl lsr lss rdd rde rdf rdg rdl rdr rds re- red ree ref reg rel rer res rfd rfe rff rfg rfl rfr rfs rgd rge rgf rgg rgr rgs rld rle rlf rlg rll rlr rls rrd rrf rrg rrl rrr rrs rsd rse rsf rsg rsl rsr rss sdd sde sdf sdg sdl sdr sds se- sed see sef seg sel ser ses sfd sfe sff sfg sfl sfr sfs sgd sge sgf sgg sgl sgr sgs sld sle slf slg sll slr sls sr- srd sre srf srg srl srr srs ss- ssd sse ssf ssg ssl ssr sss