-al a-a a-t aaa aad aae aal aat aax ad- ada add ade adl adt adx aea aed aee ael aet aex al- ala ald ale all alt alx at- ata atd ate atl att atx ax- axa axe axl axt axx daa dad dae dal dat dax dda ddd dde ddl ddt ddx de- dea ded dee del det dex dl- dla dld dle dll dlt dlx dta dtd dte dtl dtt dtx dxd dxl dxt dxx eaa ead eae eal eat eax ed- eda edd ede edl edt edx eea eed eee eel eet eex ela eld ele ell elt elx eta etd ete etl ett etx ex- exa exd exe exl ext exx la- laa lad lae lal lat lax lda ldd lde ldl ldt lea led lee lel let lex lla lld lle lll llt lta ltd lte ltl ltt ltx lxd lxx t-x taa tad tae tal tat tax tda tdd tde tdl tdt tdx te- tea ted tee tel tet tex tla tld tle tll tlt tlx tta ttd tte ttl ttt ttx txe txl txt xaa xad xal xat xda xde xdt xed xee xel xet xex xla xld xlt xtx xxl xxx