a-a a-z aaa aag aao aar aav aaz ag- aga agg ago agr agv agz aoa aog aoo aor aov ar- ara arg aro arr arv arz av- ava avg avo avr avz az- aza azg azo azz gaa gag gao gar gav gaz gga ggg ggo ggr ggv ggz goa gog goo gor gov goz gra grg gro grr grv gva gvg gvo gvr gza gzo gzr oaa oag oao oar oav oga ogg ogo oo- ooa oog ooo oor oov or- ora org oro orr orv orz ov- ova ovo ovv oza ozo ozz ra- raa rag rao rar rav raz rga rgg rgo rgr rgv roa rog roo ror rov roz rra rrg rrr rva rvg rvo rvr rvv rza rzo v-a vaa vag vao var vav vaz vga vgg vgo vgr vgz voa vog voo vor vov voz vra vrg vrr vva vvg vvo vvr vvv vvz z-g zaa zag zao zar zav zaz zgg zgv zo- zoa zog zoo zor zro zzr zzz