-th a-a a-b a-t a-z aaa aab aah aan aat aaz ab- aba abb abh abn abt abz aha ahb ahh ahn aht ahz an- ana anb anh ann ant anz at- ata atb ath atn att atz az- aza azb azn azt azz baa bab bah ban bat baz bba bbb bbh bbn bbt bha bhb bhh bht bna bnb bnn bnt bnz bta btb bth btn btt btz bza bzh bzn bzz haa hab hah han hat haz hba hbb hbh hbn hbt hbz hha hhb hhh hhn hht hhz hna hnb hnh hnn hnt hnz hta htb hth htn htt htz hzt naa nab nah nan nat naz nba nbb nbn nbt nha nhb nhh nhn nht nhz nna nnb nnh nnn nnt nnz nta ntb nth ntn ntt ntz nzb nzz taa tab tah tan tat taz tba tbb tbh tbn tbt tbz th- tha thb thh thn tht thz tna tnb tnh tnn tnt tnz tta ttb tth ttn ttt tza zaa zab zah zan zat zaz zbb zbt zha znn zta zzt zzz