-er a-a a-t aaa aae aag aan aar aat aav aax aea aee aeg aen aer aet aev aex ag- aga age agg agn agr agt agv agx an- ana ane ang ann anr ant anv anx ar- ara are arg arn arr art arv arx at- ata ate atg atn atr att atv atx av- ava ave avg avn avr avt avx ax- axa axe axn axr axt axv axx eaa eae eag ean ear eat eav eax eea eee eeg een eer eet eev eex ega ege egg egn egr egt egx en- ena ene eng enn enr ent env era ere erg ern err ert erv eta ete etg etn etr ett etv etx eva eve evg evn evr evt evv ex- exa exe exr ext exx gaa gae gag gan gar gat gav ge- gea gee geg gen ger get gev gex gga ggg ggn ggr ggt ggv gna gne gnn gnr gnt gnv gra gre grg grn grr grt grv grx gta gte gtg gtn gtr gtt gtv gtx gva gve gvg gvn gvr gvt gxa gxt naa nae nag nan nar nat nav nax ne- nea nee neg nen ner net nev nex nga nge ngg ngn ngt nna nne nng nnn nnt nnv nra nre nrg nrn nrr nrt nrv nrx nta nte ntg ntn ntr ntt ntv ntx nva nve nvg nvn nvt nvv nxt nxv ra- raa rae rag ran rar rat rav rax re- rea ree reg ren rer ret rev rex rga rge rgg rgn rgr rgt rgv rgx rna rng rnn rnr rnt rnv rra rrg rrn rrr rrt rta rte rtg rtn rtr rtt rtv rtx rva rve rvg rvn rvr rvt rvv rxr t-x taa tae tag tan tar tat tav tax te- tea tee teg ten ter tet tev tex tga tge tgg tgn tgr tgt tgv tna tne tng tnn tnr tnt tnx tra tre trg trn trr trt trv trx tta tte ttg ttn ttr ttt ttv ttx tva tve tvg tvn tvr tvt tvx txe txn txt v-a v-e vaa vae vag van var vat vav vax vea vee veg ven ver vet vex vga vgg vgn vgr vgt vgx vn- vna vng vnr vnv vra vre vrg vrn vrr vrt vta vte vtg vtr vtt vtv vtx vva vvg vvr vvt vvv vxa vxr vxv xaa xag xan xar xat xav xee xeg xen xer xet xev xex xge xna xrt xrx xtr xtv xtx xvg xvt xxv xxx