a-a aaa aag aak aar aav ag- aga agg agk agr agv aka akg akk akr akv ar- ara arg ark arr arv av- ava avg avk avr gaa gag gak gar gav gga ggg ggr ggv gka gra grg grk grr grv gva gvg gvk gvr ka- kaa kag kak kar kav kga kgv kkk kkr kkv kra krg krk krr krv kva kvk kvr kvv ra- raa rag rak rar rav rga rgg rgk rgr rgv rkg rkk rkv rra rrg rrk rrr rva rvg rvr rvv v-a vaa vag vak var vav vga vgg vgr vka vkg vra vrg vrk vrr vva vvg vvr vvv