a-a a-b aaa aab aad aag aao aau aay ab- aba abb abd abg abo abu aby ad- ada adb add adg ado adu ady ag- aga agb agd agg ago agu agy aoa aob aod aog aoo aou au- aua aub aud aug auo ay- aya ayd ayo ayu b-u baa bab bad bag bao bau bay bba bbb bbd bbg bbo bbu bby bda bdb bdd bdg bdo bdu bdy bga bgb bgd bgg bgo bgu boa bob bod bog boo bou boy bua bub bud bug buo buu buy by- bya byd byg byo byu daa dab dad dag dao dau day dba dbb dbd dbg dbo dbu dby dda ddb ddd ddg ddo ddu ddy dga dgd dgg dgu doa dob dod dog doo dou doy dua dub dud dug duo duy dy- dya dyb dyd dyo dyu dyy g-d gaa gab gad gag gao gau gay gba gbd gbg gbo gbu gby gda gdb gdd gdo gdu gga ggb ggd ggg ggo ggu goa gob god gog goo gou goy gu- gua gub gud gug guo guu guy gy- gya gyb gyd gyo oaa oab oad oag oao oau ob- oba obb obd obg obo obu oby oda odb odd odg odo odu oga ogd ogg ogo ogy oo- ooa oob ood oog ooo ou- oua oud ouo oya oyd oyo ua- uaa uab uad uag uao uau uay uba ubb ubg ubo ubu uby uda udb udd udg udo udu uga ugb ugg ugo ugu uoa uob uod uog uoo uua uug uuu uyo uyu yaa yab yad yag yao yau yay ybg yby yda ydg ydo ydy yga ygo yob yod yog yoo you yoy yua yud yug yuo yuu yuy yyb yyg yyu yyy