-al -ol a-a a-c a-t aaa aac aad aae aal aao aat ac- aca acc acd ace acl aco act ad- ada adc add ade adl ado adt aea aec aed aee ael aeo aet al- ala alc ald ale all alo alt aoa aoc aod aoe aol aoo aot at- ata atc atd ate atl ato att c-- caa cac cad cae cal cao cat cca ccc ccd cce ccl cco cct cda cdc cdd cde cdl cdo cdt ce- cea cec ced cee cel ceo cet cl- cla clc cld cle cll clo clt co- coa coc cod coe col coo cot cta ctc ctd cte ctl cto ctt daa dac dad dae dal dao dat dca dcc dcd dce dcl dco dct dda ddc ddd dde ddl ddo ddt de- dea dec ded dee del deo det dl- dla dlc dld dle dll dlo dlt doa doc dod doe dol doo dot dta dtc dtd dte dtl dto dtt eaa eac ead eae eal eao eat ec- eca ecc ecd ece ecl eco ect ed- eda edc edd ede edl edo edt eea eec eed eee eel eeo eet ela elc eld ele ell elo elt eo- eoa eoc eod eoe eol eoo eot eta etc etd ete etl eto ett la- laa lac lad lae lal lao lat lca lcc lcd lce lcl lco lct lda ldc ldd lde ldl ldo ldt lea lec led lee lel leo let lla llc lld lle lll llo llt loa loc lod loe lol loo lot lta ltc ltd lte ltl lto ltt oaa oac oad oae oal oao oat oc- oca occ ocd ocl oco oct oda odc odd ode odl odo odt oea oec oed oee oel oeo oet ola olc old ole oll olo olt oo- ooa ooc ood ool ooo oot ot- ota otc otd ote otl oto ott taa tac tad tae tal tao tat tca tcc tcd tce tcl tco tct tda tdc tdd tde tdl tdo tdt te- tea tec ted tee tel teo tet tla tlc tld tle tll tlo tlt to- toa toc tod toe tol too tot tta ttc ttd tte ttl tto ttt