-er a-a aaa aad aae aag aao aar aav ad- ada add ade adg ado adr adv aea aed aee aeg aeo aer aev ag- aga agd age agg ago agr agv aoa aod aoe aog aoo aor aov ar- ara ard are arg aro arr arv av- ava avd ave avg avo avr daa dad dae dag dao dar dav dda ddd dde ddg ddo ddr de- dea ded dee deg deo der dev dga dgd dge dgg dgr doa dod doe dog doo dor dov dra drd dre drg dro drr drv dva dvd dve dvg dvr eaa ead eae eag eao ear eav ed- eda edd ede edg edo edr eea eed eee eeg eeo eer eev ega egd ege egg ego egr eo- eoa eod eoe eog eoo eor era erd ere erg ero err erv eva evd eve evg evo evr evv g-d gaa gad gae gag gao gar gav gda gdd gde gdo gdr gdv ge- gea ged gee geg geo ger gev gga ggd ggg ggo ggr ggv goa god goe gog goo gor gov gra grd gre grg gro grr grv gva gvd gve gvg gvo gvr oaa oad oae oag oao oar oav oda odd ode odg odo odr odv oea oed oee oeg oeo oer oga ogd oge ogg ogo oo- ooa ood oog ooo oor oov or- ora ord ore org oro orr orv ov- ova ovd ove ovo ovv ra- raa rad rae rag rao rar rav rda rdd rde rdg rdo rdr rdv re- rea red ree reg reo rer rev rga rgd rge rgg rgo rgr rgv roa rod roe rog roo ror rov rra rrd rrg rrr rva rvd rve rvg rvo rvr rvv v-a v-e vaa vad vae vag vao var vav vdd vde vdg vdo vdr vdv vea ved vee veg veo ver vga vgg vgo vgr voa vod voe vog voo vor vov vra vrd vre vrg vrr vva vvg vvo vvr vvv