-al -ol a-a a-c a-t aaa aac aae aak aal aao aat ac- aca acc ace ack acl aco act aea aec aee aek ael aeo aet aka akc ake akk akl ako al- ala alc ale alk all alo alt aoa aoc aoe aok aol aoo aot at- ata atc ate atl ato att c-- caa cac cae cak cal cao cat cca ccc cce cck ccl cco cct ce- cea cec cee cek cel ceo cet cka ckc cko ckt cl- cla clc cle clk cll clo clt co- coa coc coe cok col coo cot cta ctc cte ctk ctl cto ctt eaa eac eae eak eal eao eat ec- eca ecc ece eck ecl eco ect eea eec eee eek eel eeo eet eka ekc eke ekl eko ekt ela elc ele elk ell elo elt eo- eoa eoc eoe eok eol eoo eot eta etc ete etk etl eto ett k-t ka- kaa kac kae kak kal kao kat kca kcc kce kck kcl kct ke- kea kec kee kek kel keo ket kkc kke kkk kkl kkt kl- kla klc klo klt koa koc koe kok kol koo kot kta ktc kte ktk ktl kto ktt la- laa lac lae lak lal lao lat lca lcc lce lck lcl lco lct lea lec lee lek lel leo let lka lkl lkt lla llc lle llk lll llo llt loa loc loe lok lol loo lot lta ltc lte ltk ltl lto ltt oaa oac oae oak oal oao oat oc- oca occ ock ocl oco oct oea oec oee oel oeo oet oka okc oke okk okl oko ola olc ole olk oll olo olt oo- ooa ooc ook ool ooo oot ot- ota otc ote otk otl oto ott taa tac tae tak tal tao tat tca tcc tce tck tcl tco tct te- tea tec tee tek tel teo tet tka tkc tke tkk tkl tko tkt tla tlc tle tlk tll tlo tlt to- toa toc toe tok tol too tot tta ttc tte ttk ttl tto ttt