a-a a-z aaa aag aar aav aaz ag- aga agg agr agv agz ar- ara arg arr arv arz av- ava avg avr avz az- aza azg azz gaa gag gar gav gaz gga ggg ggr ggv ggz gra grg grr grv gva gvg gvr gza gzr ra- raa rag rar rav raz rga rgg rgr rgv rra rrg rrr rva rvg rvr rvv rza v-a vaa vag var vav vaz vga vgg vgr vgz vra vrg vrr vva vvg vvr vvv vvz z-g zaa zag zar zav zaz zgg zgv zzr zzz