a-a a-b a-i aaa aab aad aag aai aar aay ab- aba abb abd abg abi abr aby ad- ada adb add adg adi adr ady ag- aga agb agd agg agi agr agy ai- aia aib aid aig aii air aiy ar- ara arb ard arg ari arr ary ay- aya ayd ayi ayr baa bab bad bag bai bar bay bba bbb bbd bbg bbi bbr bby bda bdb bdd bdg bdi bdr bdy bga bgb bgd bgg bgi bgr bi- bia bib bid big bii bir biy bra brb brd brg bri brr bry by- bya byd byg byi byr daa dab dad dag dai dar day dba dbb dbd dbg dbi dbr dby dda ddb ddd ddg ddi ddr ddy dga dgd dgg dgi dgr di- dia dib did dig dii dir diy dra drb drd drg dri drr dry dy- dya dyb dyd dyr dyy g-d gaa gab gad gag gai gar gay gba gbd gbg gbi gbr gby gda gdb gdd gdi gdr gga ggb ggd ggg ggi ggr gia gib gid gig gii gir giy gra grb grd grg gri grr gry gy- gya gyb gyd gyr i-d ia- iaa iab iad iag iai iar iba ibb ibd ibg ibi ibr iby ida idb idd idg idi idr idy iga igb igd igg igi igr igy iia iib iid iii iir ir- ira irb ird irg iri irr iry iya iyr iyy ra- raa rab rad rag rai rar ray rba rbb rbd rbg rbi rbr rda rdb rdd rdg rdi rdr rdy rga rgb rgd rgg rgi rgr ria rib rid rig rii rir riy rra rrb rrd rrg rri rrr ry- rya ryd ryg ryr ryy yaa yab yad yag yai yar yay ybg ybi ybr yby yda ydg ydy yga yid yig yii yir yra yrg yyb yyg yyy