a-a a-b aaa aab aan aar aav aay ab- aba abb abn abr abv aby an- ana anb ann anr anv any ar- ara arb arn arr arv ary av- ava avb avn avr avy ay- aya ayn ayr baa bab ban bar bav bay bba bbb bbn bbr bby bna bnb bnn bnr bnv bra brb brn brr brv bry bva bvb bvn bvr bvv by- bya byn byr naa nab nan nar nav nay nba nbb nbn nbr nbv nna nnb nnn nnv nra nrb nrn nrr nrv nry nva nvb nvn nvv nya nyn nyy ra- raa rab ran rar rav ray rba rbb rbn rbr rna rnb rnn rnr rnv rny rra rrb rrn rrr rva rvb rvn rvr rvv rvy ry- rya ryn ryr ryy v-a vaa vab van var vav vay vba vbr vbv vn- vna vnr vnv vra vrb vrn vrr vry vva vvb vvr vvv vyn yaa yab yan yar yav yay ybr yby yna ynn yny yra yrn yva yvr yvy yyb yyy