a-a a-b aaa aab aag aah aan aar aav ab- aba abb abg abh abn abr abv ag- aga agb agg agh agn agr agv aha ahb ahg ahh ahn ahr ahv an- ana anb ang anh ann anr anv ar- ara arb arg arh arn arr arv av- ava avb avg avh avn avr baa bab bag bah ban bar bav bba bbb bbg bbh bbn bbr bga bgb bgg bgh bgn bgr bgv bha bhb bhg bhh bhr bhv bna bnb bng bnn bnr bnv bra brb brg brh brn brr brv bva bvb bvg bvh bvn bvr bvv gaa gab gag gah gan gar gav gba gbg gbh gbn gbr gbv gga ggb ggg ggh ggn ggr ggv gha ghb ghg ghh ghn ghr gna gnb gnn gnr gnv gra grb grg grh grn grr grv gva gvb gvg gvh gvn gvr haa hab hag hah han har hav hba hbb hbg hbh hbn hbr hbv hga hgb hgg hgh hgn hgr hgv hha hhb hhg hhh hhn hhr hhv hna hnb hng hnh hnn hnv hr- hra hrb hrg hrh hrn hrr hrv hv- hva hvb hvg hvn hvr hvv naa nab nag nah nan nar nav nba nbb nbg nbn nbr nbv nga ngb ngg ngh ngn nha nhb nhg nhh nhn nhr nhv nna nnb nng nnh nnn nnv nra nrb nrg nrn nrr nrv nva nvb nvg nvh nvn nvv ra- raa rab rag rah ran rar rav rba rbb rbg rbh rbn rbr rga rgb rgg rgh rgn rgr rgv rh- rha rhb rhg rhh rhn rhr rhv rna rnb rng rnh rnn rnr rnv rra rrb rrg rrh rrn rrr rva rvb rvg rvh rvn rvr rvv v-a vaa vab vag vah van var vav vba vbg vbh vbr vbv vga vgg vgh vgn vgr vh- vha vhb vn- vna vng vnr vnv vra vrb vrg vrh vrn vrr vva vvb vvg vvr vvv