a-a a-b aaa aab aad aaj aao aay ab- aba abb abd abj abo aby ad- ada adb add adj ado ady aja ajb ajd ajj ajo ajy aoa aob aod aoj aoo ay- aya ayd ayo baa bab bad baj bao bay bba bbb bbd bbo bby bda bdb bdd bdj bdo bdy bja bjd bjj boa bob bod boj boo boy by- bya byd byj byo daa dab dad daj dao day dba dbb dbd dbo dby dda ddb ddd ddo ddy dj- dja djb djd djo doa dob dod doj doo doy dy- dya dyb dyd dyo dyy j-d jaa jab jad jaj jao jay jba jbj jbo jda jdb jdo jja jjb jjj jjy joa job jod joj joo joy jyj oaa oab oad oaj oao ob- oba obb obd obj obo oby oda odb odd odo oja ojb ojd ojo ojy oo- ooa oob ood ooo oya oyd oyo yaa yab yad yao yay yby yda ydo ydy yob yod yoj yoo yoy yyb yyy