a-a a-b a-z aaa aab aad aah aau aaz ab- aba abb abd abh abu abz ad- ada adb add adh adu adz aha ahb ahd ahh ahu ahz au- aua aub aud auh auz az- aza azb azd azu azz b-u baa bab bad bah bau baz bba bbb bbd bbh bbu bda bdb bdd bdh bdu bdz bha bhb bhd bhh bhu bua bub bud buh buu buz bza bzd bzh bzu bzz daa dab dad dah dau daz dba dbb dbd dbh dbu dbz dda ddb ddd ddh ddu ddz dh- dha dhb dhd dhh dhu dua dub dud duh duz dza dzb dzd dzu haa hab had hah hau haz hba hbb hbd hbh hbu hbz hda hdb hdd hdh hdu hdz hha hhb hhd hhh hhu hhz hua hub hud huh huu huz hzd ua- uaa uab uad uah uau uaz uba ubb ubh ubu uda udb udd udu uha uhb uhd uhh uhu uua uuu uza uzb uzh uzu zaa zab zad zah zaz zbb zha zhu zub zud zuz zzz