-al -ol a-a a-c a-t aaa aac aaf aal aan aao aat ac- aca acc acf acl acn aco act af- afa afc aff afl afn afo aft al- ala alc alf all aln alo alt an- ana anc anf anl ann ano ant aoa aoc aof aol aon aoo aot at- ata atc atf atl atn ato att c-- caa cac caf cal can cao cat cca ccc ccf ccl ccn cco cct cfa cfc cff cfl cfn cfo cft cl- cla clc clf cll cln clo clt cn- cna cnc cnf cnl cnn cno cnt co- coa coc cof col con coo cot cta ctc ctf ctl ctn cto ctt faa fac faf fal fan fao fat fca fcc fcf fcl fcn fco fct ffa ffc fff ffl ffn ffo fft fla flc flf fll fln flo flt fna fnc fnf fnl fnn fnt foa foc fof fol fon foo fot fta ftc ftf ftl ftn fto ftt la- laa lac laf lal lan lao lat lca lcc lcf lcl lcn lco lct lfa lfc lff lfl lfn lfo lft lla llc llf lll lln llo llt lna lnc lnl lnn lno lnt loa loc lof lol lon loo lot lta ltc ltf ltl lto ltt naa nac naf nal nan nao nat nca ncc ncf ncl ncn nco nct nfa nfc nff nfl nfn nfo nft nla nlc nlf nll nln nlo nlt nna nnc nnf nnl nnn nno nnt no- noa noc nof nol non noo not nta ntc ntf ntn nto ntt oaa oac oaf oal oan oao oat oc- oca occ ocf ocl ocn oco oct of- ofa ofc off ofl ofn ofo oft ola olc olf oll oln olo olt on- ona onc onf onl onn ono ont oo- ooa ooc oof ool oon ooo oot ot- ota otc otf otl otn oto ott taa tac taf tal tan tao tat tca tcc tcf tcl tcn tco tct tfa tfc tff tfl tfn tfo tft tla tlc tlf tll tln tlo tlt tna tnc tnf tnl tnn tno tnt to- toa toc tof tol ton too tot tta ttc ttf ttl ttn tto ttt