a-a a-z aaa aad aah aan aaz ad- ada add adh adn adz aha ahd ahh ahn ahz an- ana and anh ann anz az- aza azd azn azz daa dad dah dan daz dda ddd ddh ddn ddz dh- dha dhd dhh dna dnd dnh dnn dnz dza dzd haa had hah han haz hda hdd hdh hdn hdz hha hhd hhh hhn hhz hna hnd hnh hnn hnz hzd naa nad nah nan naz nda ndd ndh ndn nha nhd nhh nhn nhz nna nnh nnn nnz nzd nzz zaa zad zah zan zaz zha znd znn zzz