a-a a-t aaa aak aan aas aat aka akk akn aks an- ana ank ann ans ant as- asa ask asn ass ast at- ata atn ats att k-t ka- kaa kak kan kas kat kkk kkn kks kkt kn- kna knk knn knt ksa ksk ksn kss kst kta ktk ktn kts ktt naa nak nan nas nat nka nkk nkn nks nkt nna nnk nnn nns nnt nsa nsk nsn nss nst nta ntk ntn nts ntt saa sak san sas sat sk- ska skk sks skt sna snk snn sns snt ss- ssa ssk ssn sss sst sta stk stn sts stt taa tak tan tas tat tka tkk tks tkt tna tnk tnn tns tnt tsa tsk tsn tss tst tta ttk ttn tts ttt