-al -er a-a a-c a-t aaa aac aae aaf aak aal aar aat ac- aca acc ace acf ack acl acr act aea aec aee aef aek ael aer aet af- afa afc afe aff afk afl afr aft aka akc ake akk akl akr al- ala alc ale alf alk all alr alt ar- ara arc are arf ark arl arr art at- ata atc ate atf atl atr att c-- caa cac cae caf cak cal car cat cca ccc cce ccf cck ccl ccr cct ce- cea cec cee cef cek cel cer cet cfa cfc cfe cff cfk cfl cfr cft cka ckc ckt cl- cla clc cle clf clk cll clr clt cra crc cre crf crk crl crr crt cta ctc cte ctf ctk ctl ctr ctt eaa eac eae eaf eak eal ear eat ec- eca ecc ece ecf eck ecl ecr ect eea eec eee eef eek eel eer eet ef- efa efc efe eff efl efr eft eka ekc eke ekf ekl ekr ekt ela elc ele elf elk ell elr elt era erc ere erf erk erl err ert eta etc ete etf etk etl etr ett faa fac fae faf fak fal far fat fca fcc fce fcf fck fcl fcr fct fea fec fee fef fek fel fer fet ffa ffc ffe fff ffk ffl ffr fft fka fkc fkf fkk fkl fkt fla flc fle flf fll flr flt fra frc fre frf frk frl frr frt fta ftc fte ftf ftk ftl ftr ftt k-t ka- kaa kac kae kaf kak kal kar kat kca kcc kce kck kcl kcr kct ke- kea kec kee kef kek kel ker ket kfa kfc kff kkc kke kkk kkl kkr kkt kl- kla klc klf klr klt kra krc krf krk krl krr krt kta ktc kte ktf ktk ktl ktr ktt la- laa lac lae laf lak lal lar lat lca lcc lce lcf lck lcl lcr lct lea lec lee lef lek lel ler let lfa lfc lfe lff lfk lfl lfr lft lka lkl lkr lkt lla llc lle llf llk lll llr llt lra lrc lrf lrk lrr lrt lta ltc lte ltf ltk ltl ltr ltt ra- raa rac rae raf rak ral rar rat rca rcc rce rcf rcl rcr rct re- rea rec ree ref rek rel rer ret rfa rfc rfe rff rfk rfl rfr rft rkc rke rkf rkk rkt rla rlc rle rlf rll rlr rlt rra rrc rrf rrk rrl rrr rrt rta rtc rte rtf rtk rtl rtr rtt taa tac tae taf tak tal tar tat tca tcc tce tcf tck tcl tcr tct te- tea tec tee tef tek tel ter tet tfa tfc tfe tff tfk tfl tfr tft tka tkc tke tkk tkl tkr tkt tla tlc tle tlf tlk tll tlr tlt tra trc tre trf trk trl trr trt tta ttc tte ttf ttk ttl ttr ttt