-er ddd dde ddf ddg ddo ddr dds de- ded dee def deg deo der des dev dfd dfe dff dfg dfo dfr dfs dfv dgd dge dgf dgg dgr dgs dod doe dof dog doo dor dos dov drd dre drg dro drr drs drv dsd dse dsf dsg dso dsr dss dsv dvd dve dvg dvr dvs ed- edd ede edf edg edo edr eds eed eee eef eeg eeo eer ees eev ef- efd efe eff efg efo efr efs egd ege egf egg ego egr egs eo- eod eoe eof eog eoo eor eos erd ere erf erg ero err ers erv es- esd ese esf esg eso esr ess esv evd eve evf evg evo evr evs evv fdd fde fdf fdg fdo fdr fds fed fee fef feg feo fer fes fev ffd ffe fff ffg ffo ffr ffs ffv fgd fge fgf fgg fgr fgs fgv foe fof fog foo for fos frd fre frf frg fro frr frs fsd fse fsf fsg fso fsr fss fsv fvd fvg g-d gdd gde gdf gdo gdr gds gdv ge- ged gee gef geg geo ger ges gev gfd gfe gff gfo gfr gfs ggd ggg ggo ggr ggs ggv god goe gof gog goo gor gos gov grd gre grf grg gro grr grs grv gsd gse gsf gsg gso gsr gss gsv gvd gve gvf gvg gvo gvr gvs odd ode odf odg odo odr ods odv oed oee oef oeg oeo oer oes of- ofd ofe off ofg ofo ofr ofs ofv ogd oge ogf ogg ogo ogs oo- ood oof oog ooo oor oos oov or- ord ore orf org oro orr ors orv os- osd ose osf osg oso osr oss osv ov- ovd ove ovf ovo ovs ovv rdd rde rdf rdg rdo rdr rds rdv re- red ree ref reg reo rer res rev rfd rfe rff rfg rfo rfr rfs rfv rgd rge rgf rgg rgo rgr rgs rgv rod roe rof rog roo ror ros rov rrd rrf rrg rrr rrs rsd rse rsf rsg rso rsr rss rsv rvd rve rvf rvg rvo rvr rvs rvv sdd sde sdf sdg sdo sdr sds sdv se- sed see sef seg seo ser ses sev sfd sfe sff sfg sfo sfr sfs sfv sgd sge sgf sgg sgo sgr sgs sgv sod soe sof sog soo sor sos sov sr- srd sre srf srg sro srr srs srv ss- ssd sse ssf ssg sso ssr sss ssv svd sve svf svg svo svr svs svv v-e vdd vde vdf vdg vdo vdr vds vdv ved vee vef veg veo ver ves vfd vff vfg vfr vfs vfv vgf vgg vgo vgr vgs vod voe vof vog voo vor vos vov vrd vre vrf vrg vrr vrs vsd vse vsf vsg vso vsr vss vsv vvg vvo vvr vvs vvv