a-a a-i a-t aaa aaf aai aam aat aax af- afa aff afi afm aft afx ai- aia aif aii aim ait aix ama amf ami amm amt amx at- ata atf ati atm att atx ax- axa axi axm axt axx faa faf fai fam fat fax ffa fff ffi ffm fft ffx fia fif fii fim fit fix fma fmf fmi fmm fmt fmx fta ftf fti ftm ftt ftx fxi fxm fxt fxx i-f ia- iaa iaf iai iam iat ifa iff ifi ifm ift ifx iia iif iii iim iit iix im- ima imf imi imm imt imx ita itf iti itm itt itx ixi m-f maa maf mai mam mat max mfa mff mfi mfm mft mi- mia mif mii mim mit mix mma mmf mmi mmm mmt mmx mta mtf mti mtm mtt mtx mxa mxi t-x taa taf tai tam tat tax tfa tff tfi tfm tft tfx tia tif tii tim tit tix tma tmf tmi tmm tmt tmx tta ttf tti ttm ttt ttx txf txi txt xaa xaf xam xat xfa xfm xft xfx xia xii xit xix xma xmf xmi xmm xmt xmx xtf xti xtm xtx xxi xxx