-al a-a a-c a-t aaa aac aad aae aal aas aat ac- aca acc acd ace acl acs act ad- ada adc add ade adl ads adt aea aec aed aee ael aes aet al- ala alc ald ale all als alt as- asa asc asd ase asl ass ast at- ata atc atd ate atl ats att c-- caa cac cad cae cal cas cat cca ccc ccd cce ccl ccs cct cda cdc cdd cde cdl cds cdt ce- cea cec ced cee cel ces cet cl- cla clc cld cle cll cls clt csa csc csd cse csl css cst cta ctc ctd cte ctl cts ctt daa dac dad dae dal das dat dca dcc dcd dce dcl dcs dct dda ddc ddd dde ddl dds ddt de- dea dec ded dee del des det dl- dla dlc dld dle dll dls dlt dsa dsc dsd dse dsl dss dst dta dtc dtd dte dtl dts dtt eaa eac ead eae eal eas eat ec- eca ecc ecd ece ecl ecs ect ed- eda edc edd ede edl eds edt eea eec eed eee eel ees eet ela elc eld ele ell els elt es- esa esc esd ese esl ess est eta etc etd ete etl ets ett la- laa lac lad lae lal las lat lca lcc lcd lce lcl lcs lct lda ldc ldd lde ldl lds ldt lea lec led lee lel les let lla llc lld lle lll lls llt lsa lsc lsd lse lsl lss lst lta ltc ltd lte ltl lts ltt saa sac sad sae sal sas sat sca scc scd sce scl scs sct sda sdc sdd sde sdl sds sdt se- sea sec sed see sel ses set sla slc sld sle sll sls slt ss- ssa ssc ssd sse ssl sss sst sta stc std ste stl sts stt taa tac tad tae tal tas tat tca tcc tcd tce tcl tcs tct tda tdc tdd tde tdl tds tdt te- tea tec ted tee tel tes tet tla tlc tld tle tll tls tlt tsa tsc tsd tse tsl tss tst tta ttc ttd tte ttl tts ttt