a-a a-b aaa aab aaj aar aav ab- aba abb abj abr abv aja ajb ajj ajr ar- ara arb arj arr arv av- ava avb avr baa bab baj bar bav bba bbb bbr bja bjj bjr bra brb brj brr brv bva bvb bvr bvv jaa jab jaj jar jav jba jbj jbr jja jjb jjj jjr jra jrb jrr jvb ra- raa rab raj rar rav rba rbb rbr rja rjr rra rrb rrr rva rvb rvr rvv v-a vaa vab vaj var vav vba vbr vbv vja vra vrb vrr vva vvb vvr vvv