-er a-a a-t aaa aae aag aao aar aat aav aax aea aee aeg aeo aer aet aev aex ag- aga age agg ago agr agt agv agx aoa aoe aog aoo aor aot aov aox ar- ara are arg aro arr art arv arx at- ata ate atg ato atr att atv atx av- ava ave avg avo avr avt avx ax- axa axe axo axr axt axv axx eaa eae eag eao ear eat eav eax eea eee eeg eeo eer eet eev eex ega ege egg ego egr egt egx eo- eoa eoe eog eoo eor eot era ere erg ero err ert erv eta ete etg eto etr ett etv etx eva eve evg evo evr evt evv ex- exa exe exo exr ext exx gaa gae gag gao gar gat gav ge- gea gee geg geo ger get gev gex gga ggg ggo ggr ggt ggv goa goe gog goo gor got gov gox gra gre grg gro grr grt grv grx gta gte gtg gto gtr gtt gtv gtx gva gve gvg gvo gvr gvt gxa gxt oaa oae oag oao oar oat oav oax oea oee oeg oeo oer oet oex oga oge ogg ogo ogt ogx oo- ooa oog ooo oor oot oov oox or- ora ore org oro orr ort orv orx ot- ota ote otg oto otr ott otv ov- ova ove ovo ovv ox- oxa oxo oxt oxx ra- raa rae rag rao rar rat rav rax re- rea ree reg reo rer ret rev rex rga rge rgg rgo rgr rgt rgv rgx roa roe rog roo ror rot rov rox rra rrg rrr rrt rta rte rtg rto rtr rtt rtv rtx rva rve rvg rvo rvr rvt rvv rxr t-x taa tae tag tao tar tat tav tax te- tea tee teg teo ter tet tev tex tga tge tgg tgo tgr tgt tgv to- toa toe tog too tor tot tov tox tra tre trg tro trr trt trv trx tta tte ttg tto ttr ttt ttv ttx tva tve tvg tvo tvr tvt tvx txe txt v-a v-e vaa vae vag vao var vat vav vax vea vee veg veo ver vet vex vga vgg vgo vgr vgt vgx voa voe vog voo vor vot vov vox vra vre vrg vrr vrt vta vte vtg vto vtr vtt vtv vtx vva vvg vvo vvr vvt vvv vxa vxr vxv xaa xag xar xat xav xee xeg xer xet xev xex xge xoa xog xoo xor xot xov xox xrt xrx xtr xtv xtx xvg xvt xxo xxv xxx