a-a a-i aaa aai aak aan aao aap aas ai- aia aii aik ain aio aip ais aka aki akk akn ako akp aks an- ana ani ank ann ano anp ans aoa aoi aok aon aoo aop aos ap- apa api apk apn apo app aps as- asa asi ask asn aso asp ass ia- iaa iai ian iao iap ias iia iii iin iio iip iis ika iki ikk iko iks in- ina ini ink inn ino inp ins io- ioa ioi ion ioo iop ios ipa ipi ipn ipo ipp ips is- isa isi isk isn iso isp iss ka- kaa kai kak kan kao kap kas kia kii kik kin kio kip kis kki kkk kkn kkp kks kn- kna kni knk knn kno knp koa koi kok kon koo kop kos kpa kpi kpk kpn kpo kpp kps ksa ksi ksk ksn kso ksp kss n-i naa nai nak nan nao nap nas nia nii nik nin nio nip nis nka nki nkk nkn nko nkp nks nna nni nnk nnn nno nnp nns no- noa noi nok non noo nop nos npa npi npn npo npp nps nsa nsi nsk nsn nso nsp nss o-i oaa oai oak oan oao oap oas oia oii oik oin oio oip ois oka oki okk oko okp oks on- ona oni onk onn ono onp ons oo- ooa ooi ook oon ooo oop oos op- opa opi opk opn opo opp ops os- osa osi osk osn oso osp oss p-p paa pai pak pan pao pap pas pia pii pik pin pio pip pis pka pki pkn pko pkp pks pn- pna pni pnk pnn pno pnp pns poa poi pok pon poo pop pos ppa ppi ppk ppn ppo ppp pps ps- psa psi psk psn pso psp pss saa sai sak san sao sap sas sia sii sik sin sio sip sis sk- ska ski skk sko skp sks sna sni snk snn sno snp sns soa soi sok son soo sop sos spa spi spk spn spo spp sps ss- ssa ssi ssk ssn sso ssp sss