-er a-a aaa aae aag aan aar aav aea aee aeg aen aer aev ag- aga age agg agn agr agv an- ana ane ang ann anr anv ar- ara are arg arn arr arv av- ava ave avg avn avr eaa eae eag ean ear eav eea eee eeg een eer eev ega ege egg egn egr en- ena ene eng enn enr env era ere erg ern err erv eva eve evg evn evr evv gaa gae gag gan gar gav ge- gea gee geg gen ger gev gga ggg ggn ggr ggv gna gne gnn gnr gnv gra gre grg grn grr grv gva gve gvg gvn gvr naa nae nag nan nar nav ne- nea nee neg nen ner nev nga nge ngg ngn nna nne nng nnn nnv nra nre nrg nrn nrr nrv nva nve nvg nvn nvv ra- raa rae rag ran rar rav re- rea ree reg ren rer rev rga rge rgg rgn rgr rgv rna rng rnn rnr rnv rra rrg rrn rrr rva rve rvg rvn rvr rvv v-a v-e vaa vae vag van var vav vea vee veg ven ver vga vgg vgn vgr vn- vna vng vnr vnv vra vre vrg vrn vrr vva vvg vvr vvv