a-a a-i a-t aaa aaf aai aan aas aat af- afa aff afi afn afs aft ai- aia aif aii ain ais ait an- ana anf ani ann ans ant as- asa asf asi asn ass ast at- ata atf ati atn ats att faa faf fai fan fas fat ffa fff ffi ffn ffs fft fia fif fii fin fis fit fna fnf fni fnn fns fnt fsa fsf fsi fsn fss fst fta ftf fti ftn fts ftt i-f ia- iaa iaf iai ian ias iat ifa iff ifi ifn ifs ift iia iif iii iin iis iit in- ina inf ini inn ins int is- isa isf isi isn iss ist ita itf iti itn its itt n-i naa naf nai nan nas nat nfa nff nfi nfn nfs nft nia nif nii nin nis nit nna nnf nni nnn nns nnt nsa nsf nsi nsn nss nst nta ntf nti ntn nts ntt saa saf sai san sas sat sfa sff sfi sfn sfs sft sia sif sii sin sis sit sna snf sni snn sns snt ss- ssa ssf ssi ssn sss sst sta stf sti stn sts stt taa taf tai tan tas tat tfa tff tfi tfn tfs tft tia tif tii tin tis tit tna tnf tni tnn tns tnt tsa tsf tsi tsn tss tst tta ttf tti ttn tts ttt