-al a-a a-c a-t aaa aac aae aaf aak aal aat ac- aca acc ace acf ack acl act aea aec aee aef aek ael aet af- afa afc afe aff afk afl aft aka akc ake akk akl al- ala alc ale alf alk all alt at- ata atc ate atf atl att c-- caa cac cae caf cak cal cat cca ccc cce ccf cck ccl cct ce- cea cec cee cef cek cel cet cfa cfc cfe cff cfk cfl cft cka ckc ckt cl- cla clc cle clf clk cll clt cta ctc cte ctf ctk ctl ctt eaa eac eae eaf eak eal eat ec- eca ecc ece ecf eck ecl ect eea eec eee eef eek eel eet ef- efa efc efe eff efl eft eka ekc eke ekf ekl ekt ela elc ele elf elk ell elt eta etc ete etf etk etl ett faa fac fae faf fak fal fat fca fcc fce fcf fck fcl fct fea fec fee fef fek fel fet ffa ffc ffe fff ffk ffl fft fka fkc fkf fkk fkl fkt fla flc fle flf fll flt fta ftc fte ftf ftk ftl ftt k-t ka- kaa kac kae kaf kak kal kat kca kcc kce kck kcl kct ke- kea kec kee kef kek kel ket kfa kfc kff kkc kke kkk kkl kkt kl- kla klc klf klt kta ktc kte ktf ktk ktl ktt la- laa lac lae laf lak lal lat lca lcc lce lcf lck lcl lct lea lec lee lef lek lel let lfa lfc lfe lff lfk lfl lft lka lkl lkt lla llc lle llf llk lll llt lta ltc lte ltf ltk ltl ltt taa tac tae taf tak tal tat tca tcc tce tcf tck tcl tct te- tea tec tee tef tek tel tet tfa tfc tfe tff tfk tfl tft tka tkc tke tkk tkl tkt tla tlc tle tlf tlk tll tlt tta ttc tte ttf ttk ttl ttt