-al -er a-a a-c a-t aaa aac aad aae aal aar aat ac- aca acc acd ace acl acr act ad- ada adc add ade adl adr adt aea aec aed aee ael aer aet al- ala alc ald ale all alr alt ar- ara arc ard are arl arr art at- ata atc atd ate atl atr att c-- caa cac cad cae cal car cat cca ccc ccd cce ccl ccr cct cda cdc cdd cde cdl cdr cdt ce- cea cec ced cee cel cer cet cl- cla clc cld cle cll clr clt cra crc crd cre crl crr crt cta ctc ctd cte ctl ctr ctt daa dac dad dae dal dar dat dca dcc dcd dce dcl dcr dct dda ddc ddd dde ddl ddr ddt de- dea dec ded dee del der det dl- dla dlc dld dle dll dlr dlt dra drc drd dre drl drr drt dta dtc dtd dte dtl dtr dtt eaa eac ead eae eal ear eat ec- eca ecc ecd ece ecl ecr ect ed- eda edc edd ede edl edr edt eea eec eed eee eel eer eet ela elc eld ele ell elr elt era erc erd ere erl err ert eta etc etd ete etl etr ett la- laa lac lad lae lal lar lat lca lcc lcd lce lcl lcr lct lda ldc ldd lde ldl ldr ldt lea lec led lee lel ler let lla llc lld lle lll llr llt lra lrc lrd lrr lrt lta ltc ltd lte ltl ltr ltt ra- raa rac rad rae ral rar rat rca rcc rcd rce rcl rcr rct rda rdc rdd rde rdl rdr rdt re- rea rec red ree rel rer ret rla rlc rld rle rll rlr rlt rra rrc rrd rrl rrr rrt rta rtc rtd rte rtl rtr rtt taa tac tad tae tal tar tat tca tcc tcd tce tcl tcr tct tda tdc tdd tde tdl tdr tdt te- tea tec ted tee tel ter tet tla tlc tld tle tll tlr tlt tra trc trd tre trl trr trt tta ttc ttd tte ttl ttr ttt