a-a a-i aaa aaf aai aak aan aao af- afa aff afi afk afn afo ai- aia aif aii aik ain aio aka aki akk akn ako an- ana anf ani ank ann ano aoa aof aoi aok aon aoo faa faf fai fak fan fao ffa fff ffi ffk ffn ffo fia fif fii fik fin fka fkf fki fkk fna fnf fni fnk fnn foa fof foi fok fon foo i-f ia- iaa iaf iai ian iao ifa iff ifi ifn ifo iia iif iii iin iio ika ikf iki ikk iko in- ina inf ini ink inn ino io- ioa iof ioi ion ioo ka- kaa kaf kai kak kan kao kfa kff kfi kfo kia kif kii kik kin kio kki kkk kkn kn- kna knf kni knk knn kno koa kof koi kok kon koo n-i naa naf nai nak nan nao nfa nff nfi nfk nfn nfo nia nif nii nik nin nio nka nkf nki nkk nkn nko nna nnf nni nnk nnn nno no- noa nof noi nok non noo o-i oaa oaf oai oak oan oao of- ofa off ofi ofn ofo oia oif oii oik oin oio oka oki okk oko on- ona onf oni onk onn ono oo- ooa oof ooi ook oon ooo