-al -ol a-a aaa aad aae aaf aal aao aax ad- ada add ade adf adl ado adx aea aed aee aef ael aeo aex af- afa afd afe aff afl afo afx al- ala ald ale alf all alo alx aoa aod aoe aof aol aoo aox ax- axa axe axl axo axx daa dad dae daf dal dao dax dda ddd dde ddf ddl ddo ddx de- dea ded dee def del deo dex dfa dfd dfe dff dfl dfo dfx dl- dla dld dle dlf dll dlo dlx doa dod doe dof dol doo dox dxd dxl dxo dxx eaa ead eae eaf eal eao eax ed- eda edd ede edf edl edo edx eea eed eee eef eel eeo eex ef- efa efd efe eff efl efo efx ela eld ele elf ell elo elx eo- eoa eod eoe eof eol eoo ex- exa exd exe exl exo exx faa fad fae faf fal fao fax fda fdd fde fdf fdl fdo fdx fea fed fee fef fel feo fex ffa ffd ffe fff ffl ffo ffx fla fld fle flf fll flo flx foa foe fof fol foo fox fxe fxx la- laa lad lae laf lal lao lax lda ldd lde ldf ldl ldo lea led lee lef lel leo lex lfa lfd lfe lff lfl lfo lfx lla lld lle llf lll llo loa lod loe lof lol loo lox lxd lxo lxx oaa oad oae oaf oal oao oax oda odd ode odf odl odo oea oed oee oef oel oeo oex of- ofa ofd ofe off ofl ofo ofx ola old ole olf oll olo oo- ooa ood oof ool ooo oox ox- oxa oxf oxo oxx xaa xad xaf xal xda xde xdf xed xee xel xex xfa xfe xfl xfx xla xld xlf xoa xod xof xoo xox xxl xxo xxx