a-a a-t aaa aaf aak aan aas aat af- afa aff afk afn afs aft aka akk akn aks an- ana anf ank ann ans ant as- asa asf ask asn ass ast at- ata atf atn ats att faa faf fak fan fas fat ffa fff ffk ffn ffs fft fka fkf fkk fkt fna fnf fnk fnn fns fnt fsa fsf fsk fsn fss fst fta ftf ftk ftn fts ftt k-t ka- kaa kaf kak kan kas kat kfa kff kfs kkk kkn kks kkt kn- kna knf knk knn knt ksa ksf ksk ksn kss kst kta ktf ktk ktn kts ktt naa naf nak nan nas nat nfa nff nfk nfn nfs nft nka nkf nkk nkn nks nkt nna nnf nnk nnn nns nnt nsa nsf nsk nsn nss nst nta ntf ntk ntn nts ntt saa saf sak san sas sat sfa sff sfk sfn sfs sft sk- ska skf skk sks skt sna snf snk snn sns snt ss- ssa ssf ssk ssn sss sst sta stf stk stn sts stt taa taf tak tan tas tat tfa tff tfk tfn tfs tft tka tkk tks tkt tna tnf tnk tnn tns tnt tsa tsf tsk tsn tss tst tta ttf ttk ttn tts ttt