a-a a-t aaa aak aan aao aap aas aat aka akk akn ako akp aks an- ana ank ann ano anp ans ant aoa aok aon aoo aop aos aot ap- apa apk apn apo app aps apt as- asa ask asn aso asp ass ast at- ata atn ato atp ats att k-t ka- kaa kak kan kao kap kas kat kkk kkn kkp kks kkt kn- kna knk knn kno knp knt koa kok kon koo kop kos kot kpa kpk kpn kpo kpp kps kpt ksa ksk ksn kso ksp kss kst kta ktk ktn kto ktp kts ktt naa nak nan nao nap nas nat nka nkk nkn nko nkp nks nkt nna nnk nnn nno nnp nns nnt no- noa nok non noo nop nos not npa npn npo npp nps npt nsa nsk nsn nso nsp nss nst nta ntk ntn nto ntp nts ntt oaa oak oan oao oap oas oat oka okk oko okp oks on- ona onk onn ono onp ons ont oo- ooa ook oon ooo oop oos oot op- opa opk opn opo opp ops opt os- osa osk osn oso osp oss ost ot- ota otk otn oto otp ots ott p-p paa pak pan pao pap pas pat pka pkn pko pkp pks pkt pn- pna pnk pnn pno pnp pns pnt poa pok pon poo pop pos pot ppa ppk ppn ppo ppp pps ppt ps- psa psk psn pso psp pss pst pt- pta ptk ptn pto ptp pts ptt saa sak san sao sap sas sat sk- ska skk sko skp sks skt sna snk snn sno snp sns snt soa sok son soo sop sos sot spa spk spn spo spp sps spt ss- ssa ssk ssn sso ssp sss sst sta stk stn sto stp sts stt taa tak tan tao tap tas tat tka tkk tko tkp tks tkt tna tnk tnn tno tnp tns tnt to- toa tok ton too top tos tot tpa tpk tpn tpo tpp tps tpt tsa tsk tsn tso tsp tss tst tta ttk ttn tto ttp tts ttt