a-a a-i aaa aaf aai aak aan aao aar af- afa aff afi afk afn afo afr ai- aia aif aii aik ain aio air aka aki akk akn ako akr an- ana anf ani ank ann ano anr aoa aof aoi aok aon aoo aor ar- ara arf ari ark arn aro arr faa faf fai fak fan fao far ffa fff ffi ffk ffn ffo ffr fia fif fii fik fin fir fka fkf fki fkk fna fnf fni fnk fnn fnr foa fof foi fok fon foo for fra frf fri frk frn fro frr i-f ia- iaa iaf iai ian iao iar ifa iff ifi ifn ifo ifr iia iif iii iin iio iir ika ikf iki ikk iko ikr in- ina inf ini ink inn ino inr io- ioa iof ioi ion ioo ior ir- ira irf iri irk irn iro irr ka- kaa kaf kai kak kan kao kar kfa kff kfi kfo kia kif kii kik kin kio kir kki kkk kkn kkr kn- kna knf kni knk knn kno knr koa kof koi kok kon koo kor kra krf kri krk krn kro krr n-i naa naf nai nak nan nao nar nfa nff nfi nfk nfn nfo nfr nia nif nii nik nin nio nir nka nkf nki nkk nkn nko nkr nna nnf nni nnk nnn nno no- noa nof noi nok non noo nor nra nrf nri nrk nrn nro nrr o-i oaa oaf oai oak oan oao oar of- ofa off ofi ofn ofo ofr oia oif oii oik oin oio oir oka oki okk oko okr on- ona onf oni onk onn ono onr oo- ooa oof ooi ook oon ooo oor or- ora orf ori ork orn oro orr ra- raa raf rai rak ran rao rar rfa rff rfi rfk rfn rfo rfr ria rif rii rik rin rio rir rkf rkk rko rna rni rnn rno rnr roa rof roi rok ron roo ror rra rrf rri rrk rrn rrr