a-a a-b a-i aaa aab aaf aah aai aan ab- aba abb abf abh abi abn af- afa afb aff afh afi afn aha ahb ahf ahh ahi ahn ai- aia aib aif aih aii ain an- ana anb anf anh ani ann baa bab baf bah bai ban bba bbb bbf bbh bbi bbn bfa bfb bff bfh bfi bfn bha bhb bhf bhh bhi bi- bia bib bif bih bii bin bna bnb bnf bni bnn faa fab faf fah fai fan fba fbb fbf fbh fbi fbn ffa fff ffh ffi ffn fha fhb fhf fhh fhi fhn fia fib fif fih fii fin fna fnb fnf fnh fni fnn h-i haa hab haf hah hai han hba hbb hbf hbh hbi hbn hfa hfb hff hfh hfi hfn hha hhb hhf hhh hhi hhn hia hib hif hih hii hin hna hnb hnf hnh hnn i-f ia- iaa iab iaf iah iai ian iba ibb ibf ibh ibi ibn ifa ifb iff ifi ifn iha ihb ihf ihh ihi ihn iia iib iif iih iii iin in- ina inb inf inh ini inn n-i naa nab naf nah nai nan nba nbb nbf nbi nbn nfa nfb nff nfi nfn nha nhb nhf nhh nhi nhn nia nib nif nih nii nin nna nnb nnf nnh nni nnn