a-a a-i a-t aaa aaf aai aan aao aat aax af- afa aff afi afn afo aft afx ai- aia aif aii ain aio ait aix an- ana anf ani ann ano ant anx aoa aof aoi aon aoo aot aox at- ata atf ati atn ato att atx ax- axa axi axn axo axt axx faa faf fai fan fao fat fax ffa fff ffi ffn ffo fft ffx fia fif fii fin fit fix fna fnf fni fnn fnt fnx foa fof foi fon foo fot fox fta ftf fti ftn fto ftt ftx fxi fxt fxx i-f ia- iaa iaf iai ian iao iat ifa iff ifi ifn ifo ift ifx iia iif iii iin iio iit iix in- ina inf ini inn ino int inx io- ioa iof ioi ion ioo iot ita itf iti itn ito itt itx ixi ixn n-i naa naf nai nan nao nat nax nfa nff nfi nfn nfo nft nia nif nii nin nio nit nix nna nnf nni nnn nno nnt no- noa nof noi non noo not nox nta ntf nti ntn nto ntt ntx nxt o-i oaa oaf oai oan oao oat oax of- ofa off ofi ofn ofo oft ofx oia oif oii oin oio oit on- ona onf oni onn ono ont onx oo- ooa oof ooi oon ooo oot oox ot- ota otf oti otn oto ott ox- oxa oxf oxi oxn oxo oxt oxx t-x taa taf tai tan tao tat tax tfa tff tfi tfn tfo tft tfx tia tif tii tin tio tit tix tna tnf tni tnn tno tnt tnx to- toa tof toi ton too tot tox tta ttf tti ttn tto ttt ttx txf txi txn txt xaa xaf xan xat xfa xfn xft xfx xia xii xin xio xit xix xna xno xoa xof xoi xon xoo xot xox xtf xti xtx xxi xxo xxx