-er a-a a-i a-t aaa aae aag aai aar aat aav aax aea aee aeg aei aer aet aev aex ag- aga age agg agi agr agt agv agx ai- aia aie aig aii air ait aiv aix ar- ara are arg ari arr art arv arx at- ata ate atg ati atr att atv atx av- ava ave avg avi avr avt avx ax- axa axe axi axr axt axv axx eaa eae eag eai ear eat eav eax eea eee eeg eer eet eev eex ega ege egg egi egr egt egx eia eie eig eii eir eit eiv eix era ere erg eri err ert erv eta ete etg eti etr ett etv etx eva eve evg evi evr evt evv ex- exa exe exi exr ext exx gaa gae gag gai gar gat gav ge- gea gee geg gei ger get gev gex gga ggg ggi ggr ggt ggv gia gie gig gii gir git giv gra gre grg gri grr grt grv grx gta gte gtg gti gtr gtt gtv gtx gva gve gvg gvi gvr gvt gxa gxt i-v ia- iaa iae iag iai iar iat iav ie- iea iee ieg iei ier iet iev iex iga ige igg igi igr igt iia iie iii iir iit iix ir- ira ire irg iri irr irt irv irx ita ite itg iti itt itv itx iva ive ivg ivi ivr ivt ivv ivx ixe ixi ra- raa rae rag rai rar rat rav rax re- rea ree reg rei rer ret rev rex rga rge rgg rgi rgr rgt rgv rgx ria rie rig rii rir rit riv rix rra rrg rri rrr rrt rta rte rtg rti rtr rtt rtv rtx rva rve rvg rvi rvr rvt rvv rxr t-x taa tae tag tai tar tat tav tax te- tea tee teg tei ter tet tev tex tga tge tgg tgi tgr tgt tgv tia tie tig tii tir tit tiv tix tra tre trg tri trr trt trv trx tta tte ttg tti ttr ttt ttv ttx tva tve tvg tvi tvr tvt tvx txe txi txt v-a v-e vaa vae vag vai var vat vav vax vea vee veg vei ver vet vex vga vgg vgr vgt vgx vi- via vie vig vii vir vit viv vix vra vre vrg vri vrr vrt vta vte vtg vti vtr vtt vtv vtx vva vvg vvi vvr vvt vvv vxa vxr vxv xaa xag xar xat xav xee xeg xer xet xev xex xge xgi xia xie xii xit xiv xix xrt xrx xti xtr xtv xtx xvg xvi xvt xxi xxv xxx