-al a-a a-c a-t aaa aac aad aae aal aat aax ac- aca acc acd ace acl act acx ad- ada adc add ade adl adt adx aea aec aed aee ael aet aex al- ala alc ald ale all alt alx at- ata atc atd ate atl att atx ax- axa axe axl axt axx c-- caa cac cad cae cal cat cax cca ccc ccd cce ccl cct ccx cda cdc cdd cde cdl cdt cdx ce- cea cec ced cee cel cet cex cl- cla clc cld cle cll clt clx cta ctc ctd cte ctl ctt ctx cxc cxl cxt cxx daa dac dad dae dal dat dax dca dcc dcd dce dcl dct dcx dda ddc ddd dde ddl ddt ddx de- dea dec ded dee del det dex dl- dla dlc dld dle dll dlt dlx dta dtc dtd dte dtl dtt dtx dxc dxd dxl dxt dxx eaa eac ead eae eal eat eax ec- eca ecc ecd ece ecl ect ecx ed- eda edc edd ede edl edt edx eea eec eed eee eel eet eex ela elc eld ele ell elt elx eta etc etd ete etl ett etx ex- exa exc exd exe exl ext exx la- laa lac lad lae lal lat lax lca lcc lcd lce lcl lct lcx lda ldc ldd lde ldl ldt lea lec led lee lel let lex lla llc lld lle lll llt lta ltc ltd lte ltl ltt ltx lxc lxd lxx t-x taa tac tad tae tal tat tax tca tcc tcd tce tcl tct tcx tda tdc tdd tde tdl tdt tdx te- tea tec ted tee tel tet tex tla tlc tld tle tll tlt tlx tta ttc ttd tte ttl ttt ttx txe txl txt xaa xac xad xal xat xcd xcl xcx xda xdc xde xdt xed xee xel xet xex xla xld xlt xtc xtx xxl xxx