a-a a-b aaa aab aag aah aan aar aau aav ab- aba abb abg abh abn abr abu abv ag- aga agb agg agh agn agr agu agv aha ahb ahg ahh ahn ahr ahu ahv an- ana anb ang anh ann anr anu anv ar- ara arb arg arh arn arr aru arv au- aua aub aug auh aun aur auv av- ava avb avg avh avn avr avu b-u baa bab bag bah ban bar bau bav bba bbb bbg bbh bbn bbr bbu bga bgb bgg bgh bgn bgr bgu bgv bha bhb bhg bhh bhr bhu bhv bna bnb bng bnn bnr bnu bnv bra brb brg brh brn brr bru brv bua bub bug buh bun bur buu bva bvb bvg bvh bvn bvr bvu bvv gaa gab gag gah gan gar gau gav gba gbg gbh gbn gbr gbu gbv gga ggb ggg ggh ggn ggr ggu ggv gha ghb ghg ghh ghn ghr gna gnb gnn gnr gnu gnv gra grb grg grh grn grr gru grv gu- gua gub gug gun gur guu guv gva gvb gvg gvh gvn gvr gvu haa hab hag hah han har hau hav hba hbb hbg hbh hbn hbr hbu hbv hga hgb hgg hgh hgn hgr hgu hgv hha hhb hhg hhh hhn hhr hhu hhv hna hnb hng hnh hnn hnu hnv hr- hra hrb hrg hrh hrn hrr hru hrv hua hub hug huh hun hur huu huv hv- hva hvb hvg hvn hvr hvv naa nab nag nah nan nar nau nav nba nbb nbg nbn nbr nbu nbv nga ngb ngg ngh ngn ngu nha nhb nhg nhh nhn nhr nhu nhv nna nnb nng nnh nnn nnu nnv nra nrb nrg nrn nrr nru nrv nua nub nug nuh nun nur nuu nuv nva nvb nvg nvh nvn nvu nvv ra- raa rab rag rah ran rar rau rav rba rbb rbg rbh rbn rbr rbu rga rgb rgg rgh rgn rgr rgv rh- rha rhb rhg rhh rhn rhr rhu rhv rna rnb rng rnh rnn rnr rnu rnv rra rrb rrg rrh rrn rrr rru rua rub rug ruh run rur ruu ruv rva rvb rvg rvh rvn rvr rvu rvv ua- uaa uab uag uah uan uar uau uav uba ubb ubg ubh ubn ubr ubu ubv uga ugb ugg ugh ugn ugr ugu uha uhb uhh uhr uhu uhv un- una unb ung unh unn unr unu unv ur- ura urb urg urn urr uru uua uug uun uur uuu uva uvb uvu uvv v-a vaa vab vag vah van var vau vav vba vbg vbh vbr vbv vga vgg vgh vgn vgr vgu vh- vha vhb vn- vna vng vnr vnu vnv vra vrb vrg vrh vrn vrr vru vug vur vuv vva vvb vvg vvr vvv