a-a a-t aaa aaf aan aao aat aau af- afa aff afn afo aft afu an- ana anf ann ano ant anu aoa aof aon aoo aot aou at- ata atf atn ato att atu au- aua auf aun auo aut faa faf fan fao fat fau ffa fff ffn ffo fft ffu fna fnf fnn fnt fnu foa fof fon foo fot fou fta ftf ftn fto ftt ftu fua fuf fun fuo fut fuu naa naf nan nao nat nau nfa nff nfn nfo nft nfu nna nnf nnn nno nnt nnu no- noa nof non noo not nou nta ntf ntn nto ntt ntu nua nun nuo nut nuu oaa oaf oan oao oat oau of- ofa off ofn ofo oft ofu on- ona onf onn ono ont onu oo- ooa oof oon ooo oot ot- ota otf otn oto ott otu ou- oua ouf oun ouo out taa taf tan tao tat tau tfa tff tfn tfo tft tfu tna tnf tnn tno tnt to- toa tof ton too tot tou tta ttf ttn tto ttt ttu tua tuf tun tuo tut tuu ua- uaa uaf uan uao uat uau ufa uff ufn ufo uft ufu un- una unf unn uno unt unu uoa uon uoo uot uta utf utn uto utt utu uua uun uut uuu