a-a a-b a-i a-t aaa aab aag aai aar aat aav aay ab- aba abb abg abi abr abt abv aby ag- aga agb agg agi agr agt agv agy ai- aia aib aig aii air ait aiv aiy ar- ara arb arg ari arr art arv ary at- ata atb atg ati atr att atv av- ava avb avg avi avr avt avy ay- aya ayi ayr ayt baa bab bag bai bar bat bav bay bba bbb bbg bbi bbr bbt bby bga bgb bgg bgi bgr bgt bgv bi- bia bib big bii bir bit biv biy bra brb brg bri brr brt brv bry bta btb btg bti btr btt btv bty bva bvb bvg bvi bvr bvt bvv by- bya byg byi byr byt gaa gab gag gai gar gat gav gay gba gbg gbi gbr gbt gbv gby gga ggb ggg ggi ggr ggt ggv gia gib gig gii gir git giv giy gra grb grg gri grr grt grv gry gta gtb gtg gti gtr gtt gtv gty gva gvb gvg gvi gvr gvt gy- gya gyb gyr i-v ia- iaa iab iag iai iar iat iav iba ibb ibg ibi ibr ibt ibv iby iga igb igg igi igr igt igy iia iib iii iir iit ir- ira irb irg iri irr irt irv iry ita itb itg iti itt itv ity iva ivb ivg ivi ivr ivt ivv ivy iya iyr iyt iyy ra- raa rab rag rai rar rat rav ray rba rbb rbg rbi rbr rbt rga rgb rgg rgi rgr rgt rgv ria rib rig rii rir rit riv riy rra rrb rrg rri rrr rrt rta rtb rtg rti rtr rtt rtv rty rva rvb rvg rvi rvr rvt rvv rvy ry- rya ryg ryr ryy taa tab tag tai tar tat tav tay tba tbb tbg tbi tbr tbt tbv tga tgb tgg tgi tgr tgt tgv tgy tia tib tig tii tir tit tiv tiy tra trb trg tri trr trt trv try tta ttb ttg tti ttr ttt ttv tty tva tvb tvg tvi tvr tvt tvy tya tyg tyr tyt v-a vaa vab vag vai var vat vav vay vba vbg vbi vbr vbv vga vgg vgr vgt vi- via vib vig vii vir vit viv viy vra vrb vrg vri vrr vrt vry vta vtb vtg vti vtr vtt vtv vty vva vvb vvg vvi vvr vvt vvv vyg vyt yaa yab yag yai yar yat yav yay ybg ybi ybr yby yga yig yii yir yit yra yrg yrt yta ytr ytt ytv yva yvi yvr yvy yyb yyg yyt yyy