-al -ol a-a a-i a-t aaa aaf aai aal aao aat aax af- afa aff afi afl afo aft afx ai- aia aif aii ail aio ait aix al- ala alf ali all alo alt alx aoa aof aoi aol aoo aot aox at- ata atf ati atl ato att atx ax- axa axi axl axo axt axx faa faf fai fal fao fat fax ffa fff ffi ffl ffo fft ffx fia fif fii fil fit fix fla flf fli fll flo flt flx foa fof foi fol foo fot fox fta ftf fti ftl fto ftt ftx fxi fxt fxx i-f ia- iaa iaf iai ial iao iat ifa iff ifi ifl ifo ift ifx iia iif iii iil iio iit iix il- ila ilf ili ill ilo ilt ilx io- ioa iof ioi iol ioo iot ita itf iti itl ito itt itx ixi ixl la- laa laf lai lal lao lat lax lfa lff lfi lfl lfo lft lfx lia lif lii lil lio lit lix lla llf lli lll llo llt loa lof loi lol loo lot lox lta ltf lti ltl lto ltt ltx lxi lxo lxx o-i oaa oaf oai oal oao oat oax of- ofa off ofi ofl ofo oft ofx oia oif oii oil oio oit ola olf oli oll olo olt oo- ooa oof ooi ool ooo oot oox ot- ota otf oti otl oto ott ox- oxa oxf oxi oxo oxt oxx t-x taa taf tai tal tao tat tax tfa tff tfi tfl tfo tft tfx tia tif tii til tio tit tix tla tlf tli tll tlo tlt tlx to- toa tof toi tol too tot tox tta ttf tti ttl tto ttt ttx txf txi txl txt xaa xaf xal xat xfa xfl xft xfx xia xii xio xit xix xla xlf xli xlt xoa xof xoi xoo xot xox xtf xti xtx xxi xxl xxo xxx