a-a a-b a-z aaa aab aad aah aan aaz ab- aba abb abd abh abn abz ad- ada adb add adh adn adz aha ahb ahd ahh ahn ahz an- ana anb and anh ann anz az- aza azb azd azn azz baa bab bad bah ban baz bba bbb bbd bbh bbn bda bdb bdd bdh bdz bha bhb bhd bhh bna bnb bnd bnn bnz bza bzd bzh bzn bzz daa dab dad dah dan daz dba dbb dbd dbh dbn dbz dda ddb ddd ddh ddn ddz dh- dha dhb dhd dhh dna dnb dnd dnh dnn dnz dza dzb dzd haa hab had hah han haz hba hbb hbd hbh hbn hbz hda hdb hdd hdh hdn hdz hha hhb hhd hhh hhn hhz hna hnb hnd hnh hnn hnz hzd naa nab nad nah nan naz nba nbb nbd nbn nda ndb ndd ndh ndn nha nhb nhd nhh nhn nhz nna nnb nnh nnn nnz nzb nzd nzz zaa zab zad zah zan zaz zbb zha znd znn zzz