a-a a-b aaa aab aad aah aaj ab- aba abb abd abh abj ad- ada adb add adh adj aha ahb ahd ahh ahj aja ajb ajd ajh ajj baa bab bad bah baj bba bbb bbd bbh bda bdb bdd bdh bdj bha bhb bhd bhh bhj bja bjd bjj daa dab dad dah daj dba dbb dbd dbh dda ddb ddd ddh dh- dha dhb dhd dhh dj- dja djb djd haa hab had hah haj hba hbb hbd hbh hbj hda hdb hdd hdh hha hhb hhd hhh hhj hja j-d jaa jab jad jah jaj jba jbj jda jdb jdh jha jhd jhj jja jjb jjj