-al a-a a-c a-t aaa aac aad aae aal aat ac- aca acc acd ace acl act ad- ada adc add ade adl adt aea aec aed aee ael aet al- ala alc ald ale all alt at- ata atc atd ate atl att c-- caa cac cad cae cal cat cca ccc ccd cce ccl cct cda cdc cdd cde cdl cdt ce- cea cec ced cee cel cet cl- cla clc cld cle cll clt cta ctc ctd cte ctl ctt daa dac dad dae dal dat dca dcc dcd dce dcl dct dda ddc ddd dde ddl ddt de- dea dec ded dee del det dl- dla dlc dld dle dll dlt dta dtc dtd dte dtl dtt eaa eac ead eae eal eat ec- eca ecc ecd ece ecl ect ed- eda edc edd ede edl edt eea eec eed eee eel eet ela elc eld ele ell elt eta etc etd ete etl ett la- laa lac lad lae lal lat lca lcc lcd lce lcl lct lda ldc ldd lde ldl ldt lea lec led lee lel let lla llc lld lle lll llt lta ltc ltd lte ltl ltt taa tac tad tae tal tat tca tcc tcd tce tcl tct tda tdc tdd tde tdl tdt te- tea tec ted tee tel tet tla tlc tld tle tll tlt tta ttc ttd tte ttl ttt