a-a a-c a-t aaa aac aak aan aas aat ac- aca acc ack acn acs act aka akc akk akn aks an- ana anc ank ann ans ant as- asa asc ask asn ass ast at- ata atc atn ats att c-- caa cac cak can cas cat cca ccc cck ccn ccs cct cka ckc cks ckt cn- cna cnc cnn cns cnt csa csc csk csn css cst cta ctc ctk ctn cts ctt k-t ka- kaa kac kak kan kas kat kca kcc kck kcn kcs kct kkc kkk kkn kks kkt kn- kna knc knk knn knt ksa ksc ksk ksn kss kst kta ktc ktk ktn kts ktt naa nac nak nan nas nat nca ncc nck ncn ncs nct nka nkc nkk nkn nks nkt nna nnc nnk nnn nns nnt nsa nsc nsk nsn nss nst nta ntc ntk ntn nts ntt saa sac sak san sas sat sca scc sck scn scs sct sk- ska skc skk sks skt sna snc snk snn sns snt ss- ssa ssc ssk ssn sss sst sta stc stk stn sts stt taa tac tak tan tas tat tca tcc tck tcn tcs tct tka tkc tkk tks tkt tna tnc tnk tnn tns tnt tsa tsc tsk tsn tss tst tta ttc ttk ttn tts ttt