-al -ol a-a a-t aaa aae aaf aal aao aat aax aea aee aef ael aeo aet aex af- afa afe aff afl afo aft afx al- ala ale alf all alo alt alx aoa aoe aof aol aoo aot aox at- ata ate atf atl ato att atx ax- axa axe axl axo axt axx eaa eae eaf eal eao eat eax eea eee eef eel eeo eet eex ef- efa efe eff efl efo eft efx ela ele elf ell elo elt elx eo- eoa eoe eof eol eoo eot eta ete etf etl eto ett etx ex- exa exe exl exo ext exx faa fae faf fal fao fat fax fea fee fef fel feo fet fex ffa ffe fff ffl ffo fft ffx fla fle flf fll flo flt flx foa foe fof fol foo fot fox fta fte ftf ftl fto ftt ftx fxe fxt fxx la- laa lae laf lal lao lat lax lea lee lef lel leo let lex lfa lfe lff lfl lfo lft lfx lla lle llf lll llo llt loa loe lof lol loo lot lox lta lte ltf ltl lto ltt ltx lxo lxx oaa oae oaf oal oao oat oax oea oee oef oel oeo oet oex of- ofa ofe off ofl ofo oft ofx ola ole olf oll olo olt oo- ooa oof ool ooo oot oox ot- ota ote otf otl oto ott ox- oxa oxf oxo oxt oxx t-x taa tae taf tal tao tat tax te- tea tee tef tel teo tet tex tfa tfe tff tfl tfo tft tfx tla tle tlf tll tlo tlt tlx to- toa toe tof tol too tot tox tta tte ttf ttl tto ttt ttx txe txf txl txt xaa xaf xal xat xee xel xet xex xfa xfe xfl xft xfx xla xlf xlt xoa xof xoo xot xox xtf xtx xxl xxo xxx