-al -er a-a a-c a-t aaa aac aad aae aak aal aar aat ac- aca acc acd ace ack acl acr act ad- ada adc add ade adk adl adr adt aea aec aed aee aek ael aer aet aka akc akd ake akk akl akr al- ala alc ald ale alk all alr alt ar- ara arc ard are ark arl arr art at- ata atc atd ate atl atr att c-- caa cac cad cae cak cal car cat cca ccc ccd cce cck ccl ccr cct cda cdc cdd cde cdk cdl cdr cdt ce- cea cec ced cee cek cel cer cet cka ckc ckd ckt cl- cla clc cld cle clk cll clr clt cra crc crd cre crk crl crr crt cta ctc ctd cte ctk ctl ctr ctt daa dac dad dae dak dal dar dat dca dcc dcd dce dck dcl dcr dct dda ddc ddd dde ddk ddl ddr ddt de- dea dec ded dee dek del der det dka dkc dke dkk dkl dkr dkt dl- dla dlc dld dle dlk dll dlr dlt dra drc drd dre drk drl drr drt dta dtc dtd dte dtk dtl dtr dtt eaa eac ead eae eak eal ear eat ec- eca ecc ecd ece eck ecl ecr ect ed- eda edc edd ede edk edl edr edt eea eec eed eee eek eel eer eet eka ekc ekd eke ekl ekr ekt ela elc eld ele elk ell elr elt era erc erd ere erk erl err ert eta etc etd ete etk etl etr ett k-t ka- kaa kac kad kae kak kal kar kat kca kcc kcd kce kck kcl kcr kct kda kdc kde kdk kdl kdr kdt ke- kea kec ked kee kek kel ker ket kkc kke kkk kkl kkr kkt kl- kla klc kld klr klt kra krc krd krk krl krr krt kta ktc kte ktk ktl ktr ktt la- laa lac lad lae lak lal lar lat lca lcc lcd lce lck lcl lcr lct lda ldc ldd lde ldk ldl ldr ldt lea lec led lee lek lel ler let lka lkl lkr lkt lla llc lld lle llk lll llr llt lra lrc lrd lrk lrr lrt lta ltc ltd lte ltk ltl ltr ltt ra- raa rac rad rae rak ral rar rat rca rcc rcd rce rcl rcr rct rda rdc rdd rde rdl rdr rdt re- rea rec red ree rek rel rer ret rkc rke rkk rkt rla rlc rld rle rll rlr rlt rra rrc rrd rrk rrl rrr rrt rta rtc rtd rte rtk rtl rtr rtt taa tac tad tae tak tal tar tat tca tcc tcd tce tck tcl tcr tct tda tdc tdd tde tdk tdl tdr tdt te- tea tec ted tee tek tel ter tet tka tkc tke tkk tkl tkr tkt tla tlc tld tle tlk tll tlr tlt tra trc trd tre trk trl trr trt tta ttc ttd tte ttk ttl ttr ttt